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Proton‐Coupled Electron Transfer from Phosphorus: A P−H/P−D Kinetic Isotope Effect of 178
Author(s) -
Huynh My Hang V.,
Meyer Thomas J.
Publication year - 2002
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20020415)41:8<1395::aid-anie1395>3.0.co;2-z
Subject(s) - kinetic isotope effect , osmium , proton , proton coupled electron transfer , electron transfer , chemistry , isotope , kinetic energy , electron , metal , phosphorus , photochemistry , atomic physics , ruthenium , physics , nuclear physics , catalysis , deuterium , biochemistry , organic chemistry , quantum mechanics
Remote from the metal : The first example of proton‐coupled electron transfer involving a phosphorus atom that is not directly bonded to a metal center (shown schematically; Q=benzoquinone) occurs with an osmium–phosphoraniminato complex. The large magnitude of the kinetic isotope effect is remarkable and opens the possibility of observing giant isotope effects in related reactions where proton‐coupled electron transfer is the dominant mechanism.