Deuterium and Shift Calculation (NMR Basic Principles and Progress 23)

Fleischer, U., Kutzelnigg, W., Limbach, H.-H., Martin, G.J., Martin, M.L., Schindler, M.

ISBN 10: 0387529497 / ISBN 13: 9780387529493

Published by Springer, 1991

About this Item

*Price HAS BEEN REDUCED by 10% until Monday, May 18 (weekend SALE item)* 263 pp., Hardcover, minor internal library markings else text clean & binding tight. - If you are reading this, this item is actually (physically) in our stock and ready for shipment once ordered. We are not bookjackers. Buyer is responsible for any additional duties, taxes, or fees required by recipient's country.

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Bibliographic Details

• Title: Deuterium and Shift Calculation (NMR Basic Principles and Progress 23)
• Publisher: Springer
• Publication Date: 1991
• Language: English
• ISBN 10: 0387529497
• ISBN 13: 9780387529493
• Binding: Hardcover
• Condition: Very Good

About this title

Synopsis

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].