Download or read book Intrinsic Steric Deuterium Chemical Shift Isotope Effects written by Armenag Hagop Dekmezian and published by . This book was released on 1979 with total page 320 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 Applications of NMR Techniques written by Joshua Minoru Kuperman and published by . This book was released on 2003 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Isotope Effects In Chemistry and Biology written by Amnon Kohen and published by CRC Press. This book was released on 2005-11-01 with total page 1092 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of isotope effects has expanded exponentially in the last decade, and researchers are finding isotopes increasingly useful in their studies. Bringing literature on the subject up to date, Isotope Effects in Chemistry and Biology covers current principles, methods, and a broad range of applications of isotope effects in the physical, biolo

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:

Download or read book Deuterium Isotope Effects on NMR Chemical Shifts in Organic Acids and Esters written by Dale E. Broadway and published by . This book was released on 1990 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heavy Atom Isotope Effects written by E. Buncel and published by . This book was released on 1992 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Enzyme Mechanism from Isotope Effects written by Paul F. Cook and published by CRC Press. This book was released on 1991-09-20 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: Isotope effects have become one of the most powerful tools available to the enzymologist for probing enzymic mechanisms. Enzyme Mechanism from Isotope Effects presents the basic theory underlying isotope effects, including the latest findings on proton tunneling and coupled atomic notions. Specific theoretical applications are emphasized in regard to the types of information that can be obtained using isotope effects. The book also examines recent theoretical treatments of the product dependence of deuterium isotope effects, multiple isotope effects and isotope effects on intermediate partitioning. Other topics include a complete discussion of methods for measuring isotope effects, including a detailed description of the use of the isotope ratio mass spectrometer to obtain isotope effects, and a review of the literature regarding mechanistic information obtained from isotope effects for individual classes of enzyme-catalyzed reactions. Enzyme Mechanism from Isotope Effects is an excellent reference source for investigators using isotope effects in their research. The book is also valuable for reference libraries and instructors teaching courses in enzyme mechanism.

Download or read book Heavy atom Kinetic Isotope Effects written by Marvin J. Stern and published by . This book was released on 1972 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Isotope Effects on Enzyme catalyzed Reactions written by William Wallace Cleland and published by . This book was released on 1977 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Deuterium Isotope Effects on 13C Chemical Shifts as a Tool to Determine Tautomerism and Structural Features in Intramolecular Hydrogen Bonded Systems written by Simon Bolvig and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Deuterium Isotope Effects on 13C Chemical Shifts as a Tool to Determinetautomerism and Structural Features in Intramolecualr Hydrogen Bonded Systems written by Simon Bolvig and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Isotope Effects in Chemical Reactions written by Clair J. Collins and published by . This book was released on 1971 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Deuterium Isotope Effects on 1 3C Chemical Shifts as a Tool to Determine Tautomerism and Structural Features in Intramolecular Hydrogen Bonded Systems written by Simon Bolvig and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Deuterium Isotope Effects in Chemistry and Biology written by David Kritchevsky and published by . This book was released on 1960 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Energy Research Abstracts written by and published by . This book was released on 1981 with total page 1740 pages. Available in PDF, EPUB and Kindle. Book excerpt: