Publication Date:
2001-12-26
Description:
The transfer of a hydrogen atom-a proton and an electron-is a fundamental process in chemistry and biology. A variety of hydrogen atom transfer reactions, involving iron complexes, phenols, hydroxylamines, tBuOOH, toluene, and related radicals, are shown to follow the Marcus cross relation. Thus, the Marcus theory formalism based on ground-state energetics and self-exchange rates, originally developed for electron transfer processes, is also valuable for hydrogen atom transfer. Compounds that undergo slow proton transfer (C-H bonds) or slow electron transfer (cobalt complexes) also undergo slow hydrogen atom transfer. Limitations of this approach are also discussed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roth, J P -- Yoder, J C -- Won, T J -- Mayer, J M -- 1 F32 GM63383-01/GM/NIGMS NIH HHS/ -- 2 R01 GM50422-05/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2001 Dec 21;294(5551):2524-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, University of Washington, Box 351700, Seattle, WA 98195-1700, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11752572" target="_blank"〉PubMed〈/a〉
Keywords:
Chemistry, Physical
;
Cobalt/chemistry
;
Cyclic N-Oxides/chemistry
;
Electrons
;
Ferric Compounds/chemistry
;
Ferrous Compounds/chemistry
;
Free Radicals
;
Hydrogen/*chemistry
;
Imidazoles/chemistry
;
Kinetics
;
Magnetic Resonance Spectroscopy
;
Mathematics
;
Oxidation-Reduction
;
Physicochemical Phenomena
;
Protons
;
Pyrimidines/chemistry
;
Thermodynamics
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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