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| equatorial vs axial chemistry: Basic Principles of Organic Chemistry John D. Roberts, Marjorie C. Caserio, 1977 Introduction what is organic chemistry all about?; Structural organic chemistry the shapes of molecules functional groups; Organic nomenclature; Alkanes; Stereoisomerism of organic molecules; Bonding in organic molecules atomic-orbital models; More on nomenclature compounds other than hydrocarbons; Nucleophilic substitution and elimination reactions; Separation and purification identification of organic compounds by spectroscopic techniques; Alkenes and alkynes. Ionic and radical addition reactions; Alkenes and alkynes; Oxidation and reduction reactions; Acidity or alkynes. |
| equatorial vs axial chemistry: The Anomeric Effect Eusebio Juaristi, Gabriel Cuevas, 1994-10-12 This book provides a comprehensive review of the structural, conformational, and chemical manifestations of the anomeric effect. In order to present a cogent discussion of this most fundamental and relevant phenomenon, three chapters examine our present understanding of the origin of this conformational effect, based upon a wealth of theoretical and physical data. Equally important, however, are three additional chapters that deal with the general consequences of the stereoelectronic interactions that are associated with the basis of the anomeric effect. The remainder of the book is devoted to new areas of development in the topic-such as differentiation of the endo and exo anomeric interactions, specific analysis of the enthalpic component of anomeric effects, critical evaluation of the kinetics and reverse anomeric effects, discovery of a new substantial effect in second- and lower-row anomeric segments, and others. |
| equatorial vs axial chemistry: Organic Chemistry K. Peter C. Vollhardt, Neil Eric Schore, 2011 Organic Chemistry is a proven teaching tool that makes contemporary organic chemistry accessible, introducing cutting-edge research in a fresh and student-friendly way. Its authors are both accomplished researchers and educators. |
| equatorial vs axial chemistry: Conformational Analysis Ernest Ludwig Eliel, 1967 |
| equatorial vs axial chemistry: Introduction to Stereochemistry Torsten Schmiermund, 2021-06-07 Conformal, diastereomers, rotamers, tautomers, anomers: The multitude of terms used in stereochemistry quickly makes this subfield of chemistry confusing. In addition, there are different nomenclatures and different forms of representation (Fischer projection, Haworth ring formula, Newman projection). This essential deals with basic static stereochemistry and gives an overview of the different isomeric forms and nomenclatures. It is thus both a help and a reference book. This Springer essential is a translation of the original German 1st edition essentials, Einführung in die Stereochemie by Torsten Schmiermund, published by Springer Fachmedien Wiesbaden GmbH, part of Springer Nature in 2019. The translation was done with the help of artificial intelligence (machine translation by the service DeepL.com). A subsequent human revision was done primarily in terms of content, so that the book will read stylistically differently from a conventional translation. Springer Nature works continuously to further the development of tools for the production of books and on the related technologies to support the authors. |
| equatorial vs axial chemistry: Stereochemistry of Organic Compounds Ernest L. Eliel, Samuel H. Wilen, 1994-09-28 Stereochemistry of Organic Compounds The first fully referenced, comprehensive book on this subject in more than thirty years, Stereochemistry of Organic Compounds contains up-to-date coverage and insightful exposition of all important new concepts, developments, and tools in the rapidly advancing field of stereochemistry, including: * Asymmetric and diastereoselective synthesis * Conformational analysis * Properties of enantiomers and racemates * Separation and analysis of enantiomers and diastereoisomers * Developments in spectroscopy (including NMR), chromatography, and molecular mechanics as applied to stereochemistry * Prostereoisomerism * Conceptual foundations of stereochemistry, including terminology and symmetry concepts * Chiroptical properties Written by the leading authorities in the field, the text includes more than 4,000 references, 1,000 illustrations, and a glossary of stereochemical terms. |
| equatorial vs axial chemistry: Conformational Analysis G Chiurdoglu, 2012-12-02 Conformational Analysis: Scope and Present Limitations contains the proceedings of the Brussels International Symposium on Conformational Analysis held in Brussels, Belgium, in September 1969. The papers focus on the theoretical aspects and applications of conformational analysis, such as those concerning the aliphatic and especially the cyclic series. Topics covered include the geometry of five-membered rings; conformational transmission in steroids; conformational aspects of N-quaternization; and applications of nuclear magnetic resonance spectrometry in conformational studies of cyclohexane derivatives. This book is comprised of 20 chapters and begins with a discussion on the conformational aspects of some five-membered ring compounds based mainly on observed (diffraction methods) and calculated torsional angles. The reader is then introduced to nuclear magnetic resonance studies of the conformations and conformational barriers in cyclic molecules; conformational studies of six-membered heterocycles; conformational transmission in steroids; and solvolytic cyclizations involving double bonds. The remaining chapters explore the conformational analysis of methylcyclohexane, cyclohexane systems, and carbonium ions; conformations of membrane-active cyclodepsipeptides; energetics of isomeric transition states and competitive reaction pathways in conformational analysis; and conformational aspects of the reaction of the 1-methylcyclodecane-l,6-diols with acid. This monograph will be of interest to organic chemists. |
| equatorial vs axial chemistry: Principles of Organic Chemistry Robert J. Ouellette, J. David Rawn, 2015-02-13 Class-tested and thoughtfully designed for student engagement, Principles of Organic Chemistry provides the tools and foundations needed by students in a short course or one-semester class on the subject. This book does not dilute the material or rely on rote memorization. Rather, it focuses on the underlying principles in order to make accessible the science that underpins so much of our day-to-day lives, as well as present further study and practice in medical and scientific fields. This book provides context and structure for learning the fundamental principles of organic chemistry, enabling the reader to proceed from simple to complex examples in a systematic and logical way. Utilizing clear and consistently colored figures, Principles of Organic Chemistry begins by exploring the step-by-step processes (or mechanisms) by which reactions occur to create molecular structures. It then describes some of the many ways these reactions make new compounds, examined by functional groups and corresponding common reaction mechanisms. Throughout, this book includes biochemical and pharmaceutical examples with varying degrees of difficulty, with worked answers and without, as well as advanced topics in later chapters for optional coverage. Incorporates valuable and engaging applications of the content to biological and industrial uses Includes a wealth of useful figures and problems to support reader comprehension and study Provides a high quality chapter on stereochemistry as well as advanced topics such as synthetic polymers and spectroscopy for class customization |
| equatorial vs axial chemistry: Molecular Visions (Organic, Inorganic, Organometallic) Molecular Model Kit #1 by Darling Models to accompany Organic Chemistry Darling Models, 2000-04-07 Molecular models are as vital a tool for the study of chemistry as calculators are for the study of mathematics. Molecular Visions models may be assembled in infinite combinations enabling the user to construct not only familiar configurations but also undiscovered possibilities. Models are intended to inspire the imagination, stimulate thought, and assist the visualization process. They present the user with a solid form of an abstract object that can otherwise only be visualized by the chemist. While chemistry textbooks use letters and graphics to describe molecules, molecular models make them real. MOLECULAR VISIONS Organic Kit #1 is in a green plastic box, 9x4x2 |
| equatorial vs axial chemistry: Organic Chemistry Study Guide Robert J. Ouellette, J. David Rawn, 2014-11-04 Organic Chemistry Study Guide: Key Concepts, Problems, and Solutions features hundreds of problems from the companion book, Organic Chemistry, and includes solutions for every problem. Key concept summaries reinforce critical material from the primary book and enhance mastery of this complex subject. Organic chemistry is a constantly evolving field that has great relevance for all scientists, not just chemists. For chemical engineers, understanding the properties of organic molecules and how reactions occur is critically important to understanding the processes in an industrial plant. For biologists and health professionals, it is essential because nearly all of biochemistry springs from organic chemistry. Additionally, all scientists can benefit from improved critical thinking and problem-solving skills that are developed from the study of organic chemistry. Organic chemistry, like any skill, is best learned by doing. It is difficult to learn by rote memorization, and true understanding comes only from concentrated reading, and working as many problems as possible. In fact, problem sets are the best way to ensure that concepts are not only well understood, but can also be applied to real-world problems in the work place. - Helps readers learn to categorize, analyze, and solve organic chemistry problems at all levels of difficulty - Hundreds of fully-worked practice problems, all with solutions - Key concept summaries for every chapter reinforces core content from the companion book |
| equatorial vs axial chemistry: Essentials of Organic Chemistry Paul M. Dewick, 2013-03-20 Essentials of Organic Chemistry is an accessible introduction to the subject for students of Pharmacy, Medicinal Chemistry and Biological Chemistry. Designed to provide a thorough grounding in fundamental chemical principles, the book focuses on key elements of organic chemistry and carefully chosen material is illustrated with the extensive use of pharmaceutical and biochemical examples. In order to establish links and similarities the book places prominence on principles and deductive reasoning with cross-referencing. This informal text also places the main emphasis on understanding and predicting reactivity rather than synthetic methodology as well as utilising a mechanism based layout and featuring annotated schemes to reduce the need for textual explanations. * tailored specifically to the needs of students of Pharmacy Medical Chemistry and Biological Chemistry * numerous pharmaceutical and biochemical examples * mechanism based layout * focus on principles and deductive reasoning This will be an invaluable reference for students of Pharmacy Medicinal and Biological Chemistry. |
| equatorial vs axial chemistry: Computational Organic Chemistry Steven M. Bachrach, 2014-04-07 The Second Edition demonstrates how computational chemistry continues to shed new light on organic chemistry The Second Edition of author Steven Bachrach’s highly acclaimed Computational Organic Chemistry reflects the tremendous advances in computational methods since the publication of the First Edition, explaining how these advances have shaped our current understanding of organic chemistry. Readers familiar with the First Edition will discover new and revised material in all chapters, including new case studies and examples. There’s also a new chapter dedicated to computational enzymology that demonstrates how principles of quantum mechanics applied to organic reactions can be extended to biological systems. Computational Organic Chemistry covers a broad range of problems and challenges in organic chemistry where computational chemistry has played a significant role in developing new theories or where it has provided additional evidence to support experimentally derived insights. Readers do not have to be experts in quantum mechanics. The first chapter of the book introduces all of the major theoretical concepts and definitions of quantum mechanics followed by a chapter dedicated to computed spectral properties and structure identification. Next, the book covers: Fundamentals of organic chemistry Pericyclic reactions Diradicals and carbenes Organic reactions of anions Solution-phase organic chemistry Organic reaction dynamics The final chapter offers new computational approaches to understand enzymes. The book features interviews with preeminent computational chemists, underscoring the role of collaboration in developing new science. Three of these interviews are new to this edition. Readers interested in exploring individual topics in greater depth should turn to the book’s ancillary website www.comporgchem.com, which offers updates and supporting information. Plus, every cited article that is available in electronic form is listed with a link to the article. |
| equatorial vs axial chemistry: A Textbook of Inorganic Chemistry – Volume 1 Mandeep Dalal, 2017-01-01 An advanced-level textbook of inorganic chemistry for the graduate (B.Sc) and postgraduate (M.Sc) students of Indian and foreign universities. This book is a part of four volume series, entitled A Textbook of Inorganic Chemistry – Volume I, II, III, IV. CONTENTS: Chapter 1. Stereochemistry and Bonding in Main Group Compounds: VSEPR theory; dπ -pπ bonds; Bent rule and energetic of hybridization. Chapter 2. Metal-Ligand Equilibria in Solution: Stepwise and overall formation constants and their interactions; Trends in stepwise constants; Factors affecting stability of metal complexes with reference to the nature of metal ion and ligand; Chelate effect and its thermodynamic origin; Determination of binary formation constants by pH-metry and spectrophotometry. Chapter 3. Reaction Mechanism of Transition Metal Complexes – I: Inert and labile complexes; Mechanisms for ligand replacement reactions; Formation of complexes from aquo ions; Ligand displacement reactions in octahedral complexes- acid hydrolysis, base hydrolysis; Racemization of tris chelate complexes; Electrophilic attack on ligands. Chapter 4. Reaction Mechanism of Transition Metal Complexes – II: Mechanism of ligand displacement reactions in square planar complexes; The trans effect; Theories of trans effect; Mechanism of electron transfer reactions – types; outer sphere electron transfer mechanism and inner sphere electron transfer mechanism; Electron exchange. Chapter 5. Isopoly and Heteropoly Acids and Salts: Isopoly and Heteropoly acids and salts of Mo and W: structures of isopoly and heteropoly anions. Chapter 6. Crystal Structures: Structures of some binary and ternary compounds such as fluorite, antifluorite, rutile, antirutile, crystobalite, layer lattices- CdI2, BiI3; ReO3, Mn2O3, corundum, pervoskite, Ilmenite and Calcite. Chapter 7. Metal-Ligand Bonding: Limitation of crystal field theory; Molecular orbital theory: octahedral, tetrahedral or square planar complexes; π-bonding and molecular orbital theory. Chapter 8. Electronic Spectra of Transition Metal Complexes: Spectroscopic ground states, Correlation and spin-orbit coupling in free ions for Ist series of transition metals; Orgel and Tanabe-Sugano diagrams for transition metal complexes (d1 – d9 states); Calculation of Dq, B and β parameters; Effect of distortion on the d-orbital energy levels; Structural evidence from electronic spectrum; John-Tellar effect; Spectrochemical and nephalauxetic series; Charge transfer spectra; Electronic spectra of molecular addition compounds. Chapter 9. Magantic Properties of Transition Metal Complexes: Elementary theory of magneto - chemistry; Guoy’s method for determination of magnetic susceptibility; Calculation of magnetic moments; Magnetic properties of free ions; Orbital contribution, effect of ligand-field; Application of magneto-chemistry in structure determination; Magnetic exchange coupling and spin state cross over. Chapter 10. Metal Clusters: Structure and bonding in higher boranes; Wade’s rules; Carboranes; Metal carbonyl clusters - low nuclearity carbonyl clusters; Total electron count (TEC). Chapter 11. Metal-π Complexes: Metal carbonyls: structure and bonding; Vibrational spectra of metal carbonyls for bonding and structure elucidation; Important reactions of metal carbonyls; Preparation, bonding, structure and important reactions of transition metal nitrosyl, dinitrogen and dioxygen complexes; Tertiary phosphine as ligand. |
| equatorial vs axial chemistry: Steric and Stereoelectronic Effects in Organic Chemistry Veejendra K. Yadav, 2021-07-01 In this second edition, the author has thoroughly updated each chapter and expanded the content with addition of three new chapters. This book comments on several key aspects of stereochemical control of organic reactions in measured detail to allow the reader easily grasp these concepts. In addition, emphasis is given to key information and important aspects of steric and stereoelectronic effects and their control on conformational profile and reactivity features. This book is not only an indispensable resource for advanced undergraduate and graduate students studying the stereochemical aspects of organic reactions, but also a good reference book for all organic chemists in both industry and academia. |
| equatorial vs axial chemistry: Tables of Spectral Data for Structure Determination of Organic Compounds Ernö Pretsch, T. Clerc, J. Seibl, W. Simon, 2013-06-29 Although numerical data are, in principle, universal, the compilations presented in this book are extensively annotated and interleaved with text. This translation of the second German edition has been prepared to facilitate the use of this work, with all its valuable detail, by the large community of English-speaking scientists. Translation has also provided an opportunity to correct and revise the text, and to update the nomenclature. Fortunately, spectroscopic data and their relationship with structure do not change much with time so one can predict that this book will, for a long period of time, continue to be very useful to organic chemists involved in the identification of organic compounds or the elucidation of their structure. Klaus Biemann Cambridge, MA, April 1983 Preface to the First German Edition Making use of the information provided by various spectroscopic tech niques has become a matter of routine for the analytically oriented organic chemist. Those who have graduated recently received extensive training in these techniques as part of the curriculum while their older colleagues learned to use these methods by necessity. One can, therefore, assume that chemists are well versed in the proper choice of the methods suitable for the solution of a particular problem and to translate the experimental data into structural information. |
| equatorial vs axial chemistry: Organic Chemistry, Student Study Guide and Solutions Manual David R. Klein, 2017-01-04 This is the Student Study Guide and Solutions Manual to accompany Organic Chemistry, 3e. Organic Chemistry, 3rd Edition is not merely a compilation of principles, but rather, it is a disciplined method of thought and analysis. Success in organic chemistry requires mastery in two core aspects: fundamental concepts and the skills needed to apply those concepts and solve problems. Readers must learn to become proficient at approaching new situations methodically, based on a repertoire of skills. These skills are vital for successful problem solving in organic chemistry. Existing textbooks provide extensive coverage of, the principles, but there is far less emphasis on the skills needed to actually solve problems. |
| equatorial vs axial chemistry: The VSEPR Model of Molecular Geometry Ronald J Gillespie, Istvan Hargittai, 2013-03-21 Valence Shell Electron Pair Repulsion (VSEPR) theory is a simple technique for predicting the geometry of atomic centers in small molecules and molecular ions. This authoritative reference was written by Istvan Hartiggai and the developer of VSEPR theory, Ronald J. Gillespie. In addition to its value as a text for courses in molecular geometry and chemistry, it constitutes a classic reference for professionals. Starting with coverage of the broader aspects of VSEPR, this volume narrows its focus to a succinct survey of the methods of structural determination. Additional topics include the applications of the VSEPR model and its theoretical basis. Helpful data on molecular geometries, bond lengths, and bond angles appear in tables and other graphics. |
| equatorial vs axial chemistry: Chemistry for Pharmacy Students Professor Satyajit D. Sarker, Lutfun Nahar, 2013-05-28 This book has succeeded in covering the basic chemistry essentials required by the pharmaceutical science student... the undergraduate reader, be they chemist, biologist or pharmacist will find this an interesting and valuable read. –Journal of Chemical Biology, May 2009 Chemistry for Pharmacy Students is a student-friendly introduction to the key areas of chemistry required by all pharmacy and pharmaceutical science students. The book provides a comprehensive overview of the various areas of general, organic and natural products chemistry (in relation to drug molecules). Clearly structured to enhance student understanding, the book is divided into six clear sections. The book opens with an overview of general aspects of chemistry and their importance to modern life, with particular emphasis on medicinal applications. The text then moves on to a discussion of the concepts of atomic structure and bonding and the fundamentals of stereochemistry and their significance to pharmacy- in relation to drug action and toxicity. Various aspects of aliphatic, aromatic and heterocyclic chemistry and their pharmaceutical importance are then covered with final chapters looking at organic reactions and their applications to drug discovery and development and natural products chemistry. accessible introduction to the key areas of chemistry required for all pharmacy degree courses student-friendly and written at a level suitable for non-chemistry students includes learning objectives at the beginning of each chapter focuses on the physical properties and actions of drug molecules |
| equatorial vs axial chemistry: inorganic chemestry , |
| equatorial vs axial chemistry: Heterocyclic Chemistry Radha R. Gupta, Mahendra Kumar, Vandana Gupta, 2012-12-06 Today, our world increasingly is conceived of as being molecular. An ever widening range of phenomena are described logically in terms of molecular properties and molecular interactions. The majority of known molecules are heterocyclic and heterocycles dominate the fields of biochemistry, medicinal chemistry, dyestuffs, photographic science and are of increasing importance in many others, including polymers, adhesives, and molecular engineering. Thus, the importance of heterocyclic chemistry continues to increase and this three volume work by Drs. R. R. Gupta, Mahendra Kumar and Vandana Gupta is a welcome addition to the available guides on the subject. Its scope places it in a useful niche between the single-volume texts and monographs of heterocyclic chemistry and the multivolume treatises. The authors have retained the well tried classical approach but have succeeded in placing their own individual spin on their arrangement. They have put together a well selected range from among the most important of the vast array offacts available. This factual material is ordered in a clear and logical fashion over the three volumes. The present work should be of great value to students-and practitioners of heterocyclic chemistry at all levels from the advanced undergraduate upwards. It will be of particular assistance in presenting a clear and modem view of the subject to those who use heterocycles in a variety of other fields and we wish it well. |
| equatorial vs axial chemistry: Carbohydrate Chemistry J. S. Brimacombe, 1973 Carbohydrate Chemistry provides review coverage of all publications relevant to the chemistry of monosaccharides and oligosaccharides in a given year. The amount of research in this field appearing in the organic chemical literature is increasing because of the enhanced importance of the subject, especially in areas of medicinal chemistry and biology. In no part of the field is this more apparent than in the synthesis of oligosaccharides required by scientists working in glycobiology. Clycomedicinal chemistry and its reliance on carbohydrate synthesis is now very well established, for example, by the preparation of specific carbohydrate- based antigens, especially cancer-specific oligosaccharides and glycoconjugates. Coverage of topics such as nucleosides, amino-sugars, alditols and cyclitols also covers much research of relevance to biological and medicinal chemistry. Each volume of the series brings together references to all published work in given areas of the subject and serves as a comprehensive database for the active research chemist Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading authorities in the relevant subject areas, the series creates a unique service for the active research chemist, with regular, in-depth accounts of progress in particular fields of chemistry. Subject coverage within different volumes of a given title is similar and publication is on an annual or biennial basis. |
| equatorial vs axial chemistry: Organic Chemistry Jonathan Clayden, Nick Greeves, Stuart Warren, 2012-03-15 A first- and second-year undergraduate organic chemistry textbook, specifically geared to British and European courses and those offered in better schools in North America, this text emphasises throughout clarity and understanding. |
| equatorial vs axial chemistry: Progress in Inorganic Chemistry, Volume 16 Stephen J. Lippard, 2009-09-17 This comprehensive series of volumes on inorganic chemistry provides inorganic chemists with a forum for critical, authoritative evaluations of advances in every area of the discipline. Every volume reports recent progress with a significant, up-to-date selection of papers by internationally recognized researchers, complemented by detailed discussions and complete documentation. Each volume features a complete subject index and the series includes a cumulative index as well. |
| equatorial vs axial chemistry: Chemistry John Olmsted, Greg Williams, Robert C. Burk, 2020 Chemistry, 4th Edition is an introductory general chemistry text designed specifically with Canadian professors and students in mind. A reorganized Table of Contents and inclusion of SI units, IUPAC standards, and Canadian content designed to engage and motivate readers and distinguish this text from other offerings. It more accurately reflects the curriculum of most Canadian institutions. Chemistry is sufficiently rigorous while engaging and retaining student interest through its accessible language and clear problem-solving program without an excess of material and redundancy. |
| equatorial vs axial chemistry: Introduction to Liquid Crystals Peter J. Collings, John W. Goodby, 2019-10-23 Introduction to Liquid Crystals: Chemistry and Physics, Second Edition relies on only introductory level chemistry and physics as the foundation for understanding liquid crystal science. Liquid crystals combine the material properties of solids with the flow properties of fluids. As such they have provided the foundation for a revolution in low-power, flat-panel display technology (LCDs). In this book, the essential elements of liquid crystal science are introduced and explained from the perspectives of both the chemist and physicist. This new edition relies on only introductory level physics and chemistry as the foundation for understanding liquid crystal science and is, therefore, ideal for students and recent graduates. Features Introduces and explains the essential elements of liquid crystal science, including discussion of how liquid crystals have been utilized for innovative and important applications. New to this edition are over 300 figures, 90 end-of chapter exercises, and an increased scope that includes recent developments. Combines the knowledge of two eminent scientists in the field; they have fully updated and expanded the text to cover undergraduate/graduate course work as well as current research in what is now a billion-dollar industry. Immerses the reader in the vocabulary, structures, data, and kinetic models, rapidly building up an understanding of the theories and models in current use. Begins with a historical account of the discovery of liquid crystals and continues with a description of how different phases are generated and how different molecular architectures affect liquid crystal properties. |
| equatorial vs axial chemistry: Pioneering Ideas for the Physical and Chemical Sciences W. Fleischhacker, T. Schönfeld, 2013-11-11 This volume presents the contributions delivered at the Josef-Loschmidt-Sympo sium, which took place in Vienna, June 25-27, 1995. The symposium was arranged to honor Josef Loschmidt one hundred years after his death (8 July 1895), to evaluate the sig nificance of his contributions to chemistry and physics from a modem point of view and to trace the development of scientific fields in which he had done pioneering work. Loschmidt is widely known for the first calculation of the size of molecules (1865/66), which also led to values for the number of molecules in unit gas volume and for the mass of molecules. With critical analyses of problems in statistical physics he made important contributions to the development of that field, Loschmidt's paradoxon continuing to be a point of departure for present day studies and discussions. For decades there was little awareness that Loschmidt was a pioneer in organic struc tural chemistry. Only in recent years has Loschmidt's first scientific publication Chemis che Studien I, published in 1861, become more widely known and it is now recognized that with his ideas on the structure of organic molecules he was greatly ahead of the chemists of that time. The papers in these proceedings are arranged in three sections: l. Organic structural chemistry (Chapters 1-12). 2. Physics and physical chemistry (Chapters 13-26). 3. Loschmidt's biography, Loschmidt's world (Chapters 27-33). |
| equatorial vs axial chemistry: Advances in Heterocyclic Chemistry , 1997-11-24 This volume includes the third, and final, part of a trilogy on acyclonucleosides by E.S.H. El Ashry and Y. El Kilany which began in Volume 67. This chapter covers tri-, tetra-, and penta- seco-nucleosides. These compounds are of considerable interest due to their relationship to newer anti AIDS drugs. Other chapters deal with the use of organohypervalent iodine reagents in the synthesis of organic compounds, a review of the conformational analysis of saturated 6-membered oxygen containing rings, comprising the oxanes, the various dioxanes, trioxanes, and tetroxanes, and heteropentalenes with fused imidazoles of 1,2,4-triazole rings. |
| equatorial vs axial chemistry: Aliphatic, Alicyclic and Saturated Heterocyclic Chemistry W Parker, 2007-10-31 Specialist Periodical Reports provide systematic and detailed review coverage of progress in the major areas of chemical research. Written by experts in their specialist fields the series creates a unique service for the active research chemist, supplying regular critical in-depth accounts of progress in particular areas of chemistry. For over 80 years the Royal Society of Chemistry and its predecessor, the Chemical Society, have been publishing reports charting developments in chemistry, which originally took the form of Annual Reports. However, by 1967 the whole spectrum of chemistry could no longer be contained within one volume and the series Specialist Periodical Reports was born. The Annual Reports themselves still existed but were divided into two, and subsequently three, volumes covering Inorganic, Organic and Physical Chemistry. For more general coverage of the highlights in chemistry they remain a 'must'. Since that time the SPR series has altered according to the fluctuating degree of activity in various fields of chemistry. Some titles have remained unchanged, while others have altered their emphasis along with their titles; some have been combined under a new name whereas others have had to be discontinued. The current list of Specialist Periodical Reports can be seen on the inside flap of this volume. |
| equatorial vs axial chemistry: Inorganic Chemistry Egon Wiberg, Nils Wiberg, 2001 |
| equatorial vs axial chemistry: 17 0 NMR Spectroscopy in Organic Chemistry David W. Boykin, 2020-08-27 This book provides a comprehensive review of the application of 17O NMR spectroscopy to organic chemistry. Topics include the theoretical aspects of chemical shift, quadrupolar and J coupling; 17O enrichment; the effect of steric interactions on 17O chemical shifts of functional groups in flexible and rigid systems; the application of 17O NMR spectroscopy to hydrogen bonding investigations; mechanistic problems in organic and bioorganic chemistry; and 17O NMR spectroscopy of oxygen monocoordinated to carbon in alcohols, ethers, and derivatives. Recent results that show correlations between molecular geometry, determined by X-ray studies and estimated by molecular mechanics calculations, and 17O chemical shifts are also covered. 17O Spectroscopy in Organic Chemistry provides important reference information for organic chemists and other scientists interested in 17O NMR spectroscopy as a tool for obtaining new structural and chemical data about organic molecules. |
| equatorial vs axial chemistry: n.m.r. and chemistry , |
| equatorial vs axial chemistry: The Chemistry of Heterocycles Theophil Eicher, Siegfried Hauptmann, Andreas Speicher, 2013-02-26 This classical textbook in the best sense of the word is now completely revised, updated and with more than 40% new content. The approved ordering system according to the ring size of the heterocycles has been retained, while the important chapter on 'Problems and their Solutions' has been almost completely renewed by introduction of up-to-date scientific exercises, resulting in a great tool for self-testing and exams. There was maintained a chapter on nomenclature and a helpful index of name reactions. With approximately 1,000 new literature citations, this book remains a brilliant gateway to modern heterocyclic science for master and graduate students, as well as PhDs and researchers entering the field. 'If you want quick information about the basic (or acidic!) properties of a heterocycle, some interesting facts, or an assorted few ways of making it, this book provides a welcoming, accurate, and concise introduction.' Angewandte Chemie IE 'Eicher and Hauptmann provide an up to date introduction to the field for the advanced undergraduate and graduate students. ... The book is carefully produced to a very high standard.' European Journal of Medicinal Chemistry |
| equatorial vs axial chemistry: (Chemistry) Inorganic Chemistry: Atomic Structure,Chemical Bonding and Fundamentals of Organic Chemistry Dr. Mohd. Irfan Ahmad Khan, 2020-03-19 Buy Latest (Chemistry) Inorganic Chemistry: Atomic Structure,Chemical Bonding and Fundamentals of Organic Chemistry in English language for B.Sc 1st Semester Bihar State By Thakur publication. |
| equatorial vs axial chemistry: Electrostatic and Stereoelectronic Effects in Carbohydrate Chemistry Momcilo Miljkovic, 2014-01-06 The book deals with polar effects in carbohydrates and how these effects control the stereochemistry of carbohydrate reactions. This is important for understanding the mechanisms of certain carbohydrate reactions, including enzymatic reactions such as glycosidases, a very important group of enzymes in living matter. It is also very useful for synthetic carbohydrate chemists who would like to synthesize stereoselectively certain classes of carbohydrates. This book will be a very important source of information for practicing synthetic carbohydrate chemists. The book will also be helpful for organic chemists, or for those studying glycobiology. |
| equatorial vs axial chemistry: Principles of Chemical Nomenclature G. J. Leigh, 2011 Aimed at pre-university and undergraduate students, this volume surveys the current IUPAC nomenclature recommendations in organic, inorganic and macromolecular chemistry. |
| equatorial vs axial chemistry: Chemical Thermodynamics M L McGlashan, 2007-10-31 Specialist Periodical Reports provide systematic and detailed review coverage of progress in the major areas of chemical research. Written by experts in their specialist fields the series creates a unique service for the active research chemist, supplying regular critical in-depth accounts of progress in particular areas of chemistry. For over 80 years the Royal Society of Chemistry and its predecessor, the Chemical Society, have been publishing reports charting developments in chemistry, which originally took the form of Annual Reports. However, by 1967 the whole spectrum of chemistry could no longer be contained within one volume and the series Specialist Periodical Reports was born. The Annual Reports themselves still existed but were divided into two, and subsequently three, volumes covering Inorganic, Organic and Physical Chemistry. For more general coverage of the highlights in chemistry they remain a 'must'. Since that time the SPR series has altered according to the fluctuating degree of activity in various fields of chemistry. Some titles have remained unchanged, while others have altered their emphasis along with their titles; some have been combined under a new name whereas others have had to be discontinued. |
| equatorial vs axial chemistry: Foundations of Organic Chemistry David R. Dalton, 2020-07-30 Learn the fundamentals and foundations of modern organic chemistry with this comprehensive guide Foundations of Organic Chemistry: Unity and Diversity of Structures, Pathways, and Reactions, 2nd Edition, is a substantive guide for students beginning their study of organic chemistry and instructors, as well as senior undergraduates and graduate students seeking to further their understanding of the subject. Foundations of Organic Chemistry is a serious attempt to show students who want to learn organic chemistry how we know what we know about the subject and to guide them to learn. In this work, the emphasis of the discussion of structures, pathways, and reactions is placed on the original literature and the fundamentals and use of spectroscopic and kinetic tools. Application of the resulting working knowledge of the substance of organic chemistry will lead the serious student to ask additional questions and, ultimately, to solve problems we face. The book also includes solutions guides for instructors and lecturers, as well as access to a companion website for furthering the reader’s knowledge of organic chemistry. |
| equatorial vs axial chemistry: Protecting Groups: Strategies and Applications in Carbohydrate Chemistry Sebastien Vidal, 2018-11-12 A unique overview of the most important protecting group strategies in carbohydrate chemistry Protecting Groups: Strategies and Applications in Carbohydrate Chemistry provides a detailed account of key strategies and methodologies for the protection of carbohydrates. Divided into two parts, the first focuses on groups that are used best to protect a specific position on a carbohydrate. In the second part, specific carbohydrate residues or compounds are discussed in the context of a specific protecting group strategy used to reach the desired regioisomer. This important book: -Features chapters on protecting groups at the primary and secondary positions of carbohydrates -Describes protecting group strategies towards sialic acid derivatives, glycofuranoses, sulfated glycosaminoglycans, and cyclodextrins -Provides information on automated glycan assembly -Includes a chapter on the industrial scale synthesis of heparin analogs Written by a team of leaders in the field, Protecting Groups: Strategies and Applications in Carbohydrate Chemistry is an indispensable guide for academics and industrial researchers interested in carbohydrate and natural product synthesis, pharmaceutical chemistry, and biochemistry. |
| equatorial vs axial chemistry: Natural Products Chemistry of the Red Marine Algae Plocamium Violaceum (Farlow) and Plocamium Cartilagineum (Dixon) Ernest Bok Sung Kho-Wiseman, 1978 |
| equatorial vs axial chemistry: Encyclopedia of Physical Organic Chemistry, 6 Volume Set Zerong Wang, Uta Wille, Eusebio Juaristi, 2017-04-17 Winner of 2018 PROSE Award for MULTIVOLUME REFERENCE/SCIENCE This encyclopedia offers a comprehensive and easy reference to physical organic chemistry (POC) methodology and techniques. It puts POC, a classical and fundamental discipline of chemistry, into the context of modern and dynamic fields like biochemical processes, materials science, and molecular electronics. Covers basic terms and theories into organic reactions and mechanisms, molecular designs and syntheses, tools and experimental techniques, and applications and future directions Includes coverage of green chemistry and polymerization reactions Reviews different strategies for molecular design and synthesis of functional molecules Discusses computational methods, software packages, and more than 34 kinds of spectroscopies and techniques for studying structures and mechanisms Explores applications in areas from biology to materials science The Encyclopedia of Physical Organic Chemistry has won the 2018 PROSE Award for MULTIVOLUME REFERENCE/SCIENCE. The PROSE Awards recognize the best books, journals and digital content produced by professional and scholarly publishers. Submissions are reviewed by a panel of 18 judges that includes editors, academics, publishers and research librarians who evaluate each work for its contribution to professional and scholarly publishing. You can find out more at: proseawards.com Also available as an online edition for your library, for more details visit Wiley Online Library |
Chapter 10 Chemical Bonding II: Molecular Shapes, Valence …
• The bond angles between equatorial positions are less than 120°. • The bond angles between axial and equatorial positions are less than 90°. – Linear = 180° axial to axial.
Lecture 2: The Chemical Shift Chem 117 - GitHub Pages
For the next few slides, I'll show you some interesting chemical shifts that will help calibrate your intuition. Q: Which proton is more downfield?
STEREOCHEMICAL REPRESENTATION - Vanderbilt …
This handout gives examples of the correct way to show stereochemistry for alkenes and for cyclic and acyclic alkanes. Incorrect examples are also given to illustrate what is not acceptable. …
How to determine axial vs equatorial - lamekatus.ee
1) Draw two conformations of cyclohexyl amine (C6H11NH2). Indicate axial and equatorial positions. 2) Draw the two isomers of 1,4-dihydroxylcyclohexane, identify which are equatorial …
Axial versus equatorial metal—ligand distances in transition …
Axial versus equatorial metal—ligand distances in transition metal compounds III. Hexaaqua and hexachloro complexes. By analyzing experimental structure data of hexaaqua and hexachloro …
apical (basal, equatorial) - International Union of Pure and …
The three equivalent bonds (or positions) in a plane passing through the central atom and perpendicular to the direction of the apical bonds are described as equatorial. (See axial, …
Equatorial Vs Axial Chemistry (book)
Equatorial Vs Axial Chemistry: Rules for the Nomenclature of Organic Chemistry L. C. Cross,W. Klyne,2013-09-17 Rules for the Nomenclature of Organic Chemistry Section E …
Chemistry II (Organic): Introduction to Stereoelectronics
The corresponding interaction in the case of equatorial attack would be between the incipient Nu-carbonyl carbon anti-bonding sigma orbital and the two antiperiplanar axial C-C sigma orbitals …
CHE2060 Lecture 3: Molecular conformations
• When cyclohexane flips, axial substituents become equatorial, and vice versa. • Cyclohexanes with axial substituents are less stable than those with the same substituents equatorial, …
CONFORMATIONAL ANALYSIS – PRACTICE EXERCISES
17) The energy difference between the axial and equatorial conformers of methylcyclohexane is: A) < 0.1 kcal/mol B) 0.9 kcal/mol C) 1.7 kcal/mol D) 2.5 kcal/mol E) > 5.0 kcal/mol 18) Draw the …
Workshop 8 Solutions - University of Minnesota Twin Cities
When we flip a cyclohexane chair, all axial susbtituents become equatorial, and all equatorial substituents become axial. So, Note that the “up”-“down” relationships don’t …
IUPAC Gold Book - axial (equatorial)
In the chair form of cyclohexane ring bonds to ring atoms (and molecular entities attached to such bonds) are termed axial or equatorial according to whether the bonds make a relatively large …
Equivalent and Non equivalent Hybrid Orbitals: Bent’s Rule, …
Hybrid orbital undergo better overlap → form stronger bonds with other atoms than the pure orbitals → provided most stable geometry for a molecule. Generally hybrid orbitals are mostly …
Axial vs. Equatorial Ligand Rivalry in Controlling the …
Abstract: High-valent iron-oxo species are known for their very high reactivity, and this aspect has been studied in detail over the years. The role of axial ligands in fine-tuning the reactivity of the …
BOND LENGTHS AND BOND ANGLES IN OCTAHEDRAL, …
An explanation is given for the difference in lengths of the axial and equatorial bonds in molecules such as PC16 and ClFB whose structures are based on the trigonal-bipyra- midal arrangement …
Equatorial Vs Axial Chemistry - staging-gambit2.uschess.org
Equatorial Vs Axial Chemistry: Rules for the Nomenclature of Organic Chemistry L. C. Cross,W. Klyne,2013-09-17 Rules for the Nomenclature of Organic Chemistry Section E …
cheat sheet 2014 - ETH Zürich
Axial vs equatorial attack . Fürst–Plattner rule . Carbonyl Additions . Cram . Felkin . Houk’s Rule . Felkin-Anh . Polar Felkin-Anh • Nucleophilic vs electrophilic reagents Bürgi-Dunitz Chelation • …
Conformations of Ethane CH3-CH3 - Vanderbilt University
equatorial: C-H axis is “parallel” to the “plane of the ring” Chair cyclohexane has two faces; each face has alternating axial and equatorial -H’s axial
Equatorial Vs Axial Chemistry (Download Only)
Equatorial Vs Axial Chemistry: Rules for the Nomenclature of Organic Chemistry L. C. Cross,W. Klyne,2013-09-17 Rules for the Nomenclature of Organic Chemistry Section E …
Intended Learning Outcomes Question format Acyclic Alkane …
What do the terms cis and trans mean in relation to ring systems in organic chemistry? 9. Explain the terms equatorial , axial , and 1,3-diaxial in relation to the cyclohexane chair
Chapter 10 Chemical Bonding II: Molecular Shapes, Valence …
• The bond angles between equatorial positions are less than 120°. • The bond angles between axial and equatorial positions are less than 90°. – Linear = 180° axial to axial.
Lecture 2: The Chemical Shift Chem 117 - GitHub Pages
For the next few slides, I'll show you some interesting chemical shifts that will help calibrate your intuition. Q: Which proton is more downfield?
STEREOCHEMICAL REPRESENTATION - Vanderbilt University
This handout gives examples of the correct way to show stereochemistry for alkenes and for cyclic and acyclic alkanes. Incorrect examples are also given to illustrate what is not …
How to determine axial vs equatorial - lamekatus.ee
1) Draw two conformations of cyclohexyl amine (C6H11NH2). Indicate axial and equatorial positions. 2) Draw the two isomers of 1,4-dihydroxylcyclohexane, identify which are equatorial …
Axial versus equatorial metal—ligand distances in …
Axial versus equatorial metal—ligand distances in transition metal compounds III. Hexaaqua and hexachloro complexes. By analyzing experimental structure data of hexaaqua and hexachloro …
apical (basal, equatorial) - International Union of Pure and …
The three equivalent bonds (or positions) in a plane passing through the central atom and perpendicular to the direction of the apical bonds are described as equatorial. (See axial, …
Equatorial Vs Axial Chemistry (book)
Equatorial Vs Axial Chemistry: Rules for the Nomenclature of Organic Chemistry L. C. Cross,W. Klyne,2013-09-17 Rules for the Nomenclature of Organic Chemistry Section E …
Chemistry II (Organic): Introduction to Stereoelectronics
The corresponding interaction in the case of equatorial attack would be between the incipient Nu-carbonyl carbon anti-bonding sigma orbital and the two antiperiplanar axial C-C sigma orbitals …
CHE2060 Lecture 3: Molecular conformations
• When cyclohexane flips, axial substituents become equatorial, and vice versa. • Cyclohexanes with axial substituents are less stable than those with the same substituents equatorial, …
CONFORMATIONAL ANALYSIS – PRACTICE EXERCISES
17) The energy difference between the axial and equatorial conformers of methylcyclohexane is: A) < 0.1 kcal/mol B) 0.9 kcal/mol C) 1.7 kcal/mol D) 2.5 kcal/mol E) > 5.0 kcal/mol 18) Draw …
Workshop 8 Solutions - University of Minnesota Twin Cities
When we flip a cyclohexane chair, all axial susbtituents become equatorial, and all equatorial substituents become axial. So, Note that the “up”-“down” relationships don’t …
IUPAC Gold Book - axial (equatorial)
In the chair form of cyclohexane ring bonds to ring atoms (and molecular entities attached to such bonds) are termed axial or equatorial according to whether the bonds make a relatively large …
Equivalent and Non equivalent Hybrid Orbitals: Bent’s Rule, …
Hybrid orbital undergo better overlap → form stronger bonds with other atoms than the pure orbitals → provided most stable geometry for a molecule. Generally hybrid orbitals are mostly …
Axial vs. Equatorial Ligand Rivalry in Controlling the …
Abstract: High-valent iron-oxo species are known for their very high reactivity, and this aspect has been studied in detail over the years. The role of axial ligands in fine-tuning the reactivity of the …
BOND LENGTHS AND BOND ANGLES IN OCTAHEDRAL, …
An explanation is given for the difference in lengths of the axial and equatorial bonds in molecules such as PC16 and ClFB whose structures are based on the trigonal-bipyra- midal arrangement …
Equatorial Vs Axial Chemistry - staging-gambit2.uschess.org
Equatorial Vs Axial Chemistry: Rules for the Nomenclature of Organic Chemistry L. C. Cross,W. Klyne,2013-09-17 Rules for the Nomenclature of Organic Chemistry Section E …
cheat sheet 2014 - ETH Zürich
Axial vs equatorial attack . Fürst–Plattner rule . Carbonyl Additions . Cram . Felkin . Houk’s Rule . Felkin-Anh . Polar Felkin-Anh • Nucleophilic vs electrophilic reagents Bürgi-Dunitz Chelation • …
Conformations of Ethane CH3-CH3 - Vanderbilt University
equatorial: C-H axis is “parallel” to the “plane of the ring” Chair cyclohexane has two faces; each face has alternating axial and equatorial -H’s axial
Equatorial Vs Axial Chemistry (Download Only)
Equatorial Vs Axial Chemistry: Rules for the Nomenclature of Organic Chemistry L. C. Cross,W. Klyne,2013-09-17 Rules for the Nomenclature of Organic Chemistry Section E …
Intended Learning Outcomes Question format Acyclic …
What do the terms cis and trans mean in relation to ring systems in organic chemistry? 9. Explain the terms equatorial , axial , and 1,3-diaxial in relation to the cyclohexane chair
