Download or read book Deuterium Isotope Effects in the 3 3 sigmatropic Shift written by Neal Douglas Conrad and published by . This book was released on 1978 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Kinetics and Deuterium Kinetic Isotope Effects in 3 3 and 2 3 sigmatropic Reactions written by Jahangir Emrani and published by . This book was released on 1984 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Deuterium Kinetic Isotope Effects in Boat Cope Rearrangements written by Jose Leonardo Jimenez and published by . This book was released on 1984 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Deuterium and Shift Calculation written by U. Fleischer and published by Springer. This book was released on 1991 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1931 Vrey, Brickwedde, and Murphy discovered the hydrogen isotope deuterium. The isotopic enrichment was found to arise from the fact that the electrolysis oflight water is faster than of heavy water [1,2]. This success showed that although different isotopes of an element behave identically from a chemical standpoint the different isotopic masses nevertheless lead to both isotope effects on equilibrium as well as on rate constants of chemical reactions. Soon, ratios of equilibrium constants of isotopic reactions were called "equilibrium isotope effects" (EIE), ratios of isotopic rate constants "kinetic isotope effects" (KIE). Isotope effects have been found to be especially large for those elements which are directly involved in bond breaking and bond formation during the reaction studied [3]. Such effects are, therefore, referred to as "primary". Isotopic substitution in atomic sites which maintain all chemical bonds with their neighbors during the reaction of interest leads then only to smaller "secondary" isotope effects. Because of the unique mass relation between the different hydrogen isotopes hydrogen/deuterium isotope effects are particularly large and have attracted most attention. The largest contributions to these effects arise from changes in the vibrational frequencies of the reactants. The theory of equilibrium isotope effects has been founded by Vrey [4] and Bigeleisen [5,6] and has widely been accepted [3].
Download or read book Organic Chemistry written by Pierre Vogel and published by John Wiley & Sons. This book was released on 2019-07-30 with total page 1382 pages. Available in PDF, EPUB and Kindle. Book excerpt: The know-how about reactivity, reaction mechanisms, thermodynamics and other basics in physical organic chemistry is the key for successful organic reactions. This textbook presents comprehensively this knowledge to the student and to the researcher, too. Includes Q&As.
Download or read book Concerted Organic and Bio Organic Mechanisms written by Andrew Williams and published by CRC Press. This book was released on 2020-11-25 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: The concept of concerted mechanisms was formulated nearly 90 years ago and virtually all general organic chemistry texts mention it. Until now, however, no monograph has addressed the concept explicitly. Over the last two decades, substantial advancements made in the development of precise methods for elucidating concerted mechanisms have heightened the need for a comprehensive text on the subject. Concerted Organic and Bio-organic Mechanisms gathers the salient materials related to this emerging field into a single text. It sets forth the precise definition of concertedness-along with working sub-definitions-and describes rigorous experimental tools chemists can use to diagnose the existence or absence of concerted mechanisms. Advances in our understanding of concerted mechanisms lead to further questions. Concerted Organic and Bio-organic Mechanisms provides the background and the tools researchers need to consider these important questions and further advance the frontiers of reactions, synthesis, and catalysis.
Download or read book Computational Organic Chemistry written by Steven M. Bachrach and published by John Wiley & Sons. This book was released on 2014-04-07 with total page 653 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Deuterium isotope effects in photochemical 1 5 hydrogen shift written by James Plott Roberts and published by . This book was released on 1976 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solvent and Deuterium Isotope Effects on the Ortho Claisen Rearrangement written by Eugene Fred Wolfarth and published by . This book was released on 1961 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Organic Chemistry Workbook written by Pierre Vogel and published by John Wiley & Sons. This book was released on 2019-08-20 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the accompanying workbook to the textbook "Organic Chemistry - Theory, Reactivity and Mechanisms in Modern Synthesis" by P. Vogel and K. Houk.
Download or read book Pericyclic Reactions written by Alan P. Marchand and published by Academic Press. This book was released on 2013-10-22 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pericyclic Reactions, Volume 1 covers the theoretical approaches to pericyclic reactions and pericyclic reactions of reactive intermediates and of particular reaction types. The book discusses the operational criteria for evaluation of concertedness in potential pericyclic reactions; and the Mobius-Hückel treatment of organic systems and reactions and molecular orbital following as a technique in organic chemistry. The text also describes some pericyclic reactions of carbenes and carbanions. Physicists and people involved in the study of pericyclic reactions will find the book invaluable.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Kinetic Isotope Effects in the Rearrangements of Alpha Pinene and Cis 1 2 divinylcy clopropane written by Christopher Michael Hawkins and published by . This book was released on 1986 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Deuterium Isotope Effects written by William Ferguson Bayne and published by . This book was released on 1970 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Isotope Effects Accompanying Use of Tritium and Deuterium in the Study of Organic Radiation Chemistry written by J. G. Burr and published by . This book was released on 1962 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CRC Handbook of Organic Photochemistry and Photobiology Volumes 1 2 written by William M. Horspool and published by CRC Press. This book was released on 2003-09-29 with total page 2898 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of this best-selling handbook is bigger, more comprehensive, and now completely current. In addition to thorough updates to the discussions featured in the first edition, this edition includes 66 new chapters that reflect recent developments, new applications, and emerging areas of interest. Within the handbook's 145 critically r
Download or read book Deuterium Isotope Effects on the Carbon 13 Chemical Shifts of Carbocations written by Venchei Edward Koh and published by . This book was released on 1989 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
