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MAGNETIC ISOTOPE EFFECT IN RADICAL REACTIONS - Kev-M Salikhov

PRIX: GRATUIT
FORMAT: PDF EPUB MOBI
DATE DE SORTIE: 23/10/1997
TAILLE DU FICHIER: 9,31
ISBN: 3-211-82784-6
LANGUE: FRANÇAIS
AUTEUR: Kev-M Salikhov

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...nism.The result is that some isotopes react preferentially, depending on their nuclear spin quantum number I ... Theoretical description of magnetic isotope effect in the ... ... . This is in contrast to more familiar mass-dependent isotope effects.. References Introduction The magnetic isotope effect (MIE) is a conse- quence of the dependence of the rate of the chemical reactions of radical pairs (RP) [1,2] on the spin and magnetic moments of the nuclei of the pairs. In par- ticular, the rate of intersystem crossing (ISC) in RP is dependent upon several magnetic parameter ... Telecharger MAGNETIC ISOTOPE EFFECT IN RADICAL REACTIONS PDF ... . In par- ticular, the rate of intersystem crossing (ISC) in RP is dependent upon several magnetic parameters op- erating on the odd electrons of the pair and, under certain conditions [1 ... Magnetic isotope effect in radical reactions : an introduction Kev M. Salikhov Springer, c1996 Magnetic Isotope Effect In Radical Reactions: An Introduction Download Free (EPUB, PDF) In the last two decades it was demonstrated that, in addition to masses and charges, magnetic moments of nuclei are able to influence remarkably chemical reactions. This book presents the physical background (both theoretical and experimental) of the magnetic isotope effects in radical reactions in ... 18. The Magnetic Isotope Effect on Radical Pair Reactions In the same manner that the orientation of a nuclear spin can influence the rate of ISC of two nuclear spinomers in the presence of a strong (spin orienting) magnetic field, the rate of ISC of two isotopomers will depend on the magnetic Magnetic Isotope Effect on Kinetic Parameters and Quantum Beats of Radical Pairs in Micellar Solution Studied by Optically Detected ESR Using Pulsed Microwave. The Journal of Physical Chemistry A 2008 , 112 (2) , 176-182. Magnetic isotope effect in radical reactions : an introduction. [K M Salikhov] Home. WorldCat Home About WorldCat Help. Search. Search for Library Items Search for Lists Search for Contacts Search for a Library. Create lists, bibliographies and reviews: or Search WorldCat. Find items in libraries near you. Advanced Search Find a Library. COVID-19 Resources. Reliable information about the ... Magnetic isotope and magnetic field effects on the rate of DNA synthesis catalysed by polymerases β with isotopic ions 24 Mg 2+, 25 Mg 2+ and 26 Mg 2+ in the catalytic sites were detected. No difference in enzymatic activity was found between polymerases β carrying 24 Mg 2+ and 26 Mg 2+ ions with spinless, non-magnetic nuclei 24 Mg and 26 Mg. However, 25 Mg 2+ ions with magnetic nucleus 25 ... Chemical reactions usually take place in the Earth's magnetic field which is about 5 · 10-5 T. The contribution of the Zeeman interaction of unpaired electrons with the Earth's field to singlet-triplet evolution of shortlived RPs can be ignored with reasonable accuracy. Typically, the hfi in free radicals is an order of magnitude larger than the Zeeman interaction with the Earth's field ... Enrichments of up to 13‰ for 33 S are attributed to a magnetic isotope effect (MIE) associated with the formation of thiol-disulfide, ion-radical pairs. Observed 36 S depletions in products are explained here by classical (mass-dependent) isotope effects and mixing processes. Thermochemical sulfate reduction experiments with simple amino acid and dilute concentrations of sulfate reveal significant degrees of mass-independent sulfur isotope fractionation. Enrichments of up to 13‰ for 33S are attributed to a magnetic isotope effect (MIE) associated with the formation of thiol-disulfide, ion-radical pairs. Observed 36S depletions in products are explained here by ... Magnetic isotope effect in radical reactions : an introduction / Kev M. Salikhov. Format Book Published New York : Springer-Wien, 1996. Description viii, 147 p. ; 25 cm. Notes Includes bibliographical references (p. [139]-143) and index. Subject headings Free radical reactions. Nuclear spin. Polarization (Nuclear physics) ISBN Oxygen isotope selection induced by magnetic interactions is found in the liquid phase oxidation of the atactic polypropylene, ethylbenzene, isopropyl… Microviscosity Dependence of Magnetic Isotope Effect on Radical Pair Deca...