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CIDNP Spectroscopic Observation of (S:. + N) Radical Cations with a Two‐Center Three‐Electron Bond During the Photooxidation of Methionine
Author(s) -
Goez Martin,
Rozwadowski Jaroslaw,
Marciniak Bronislaw
Publication year - 1998
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/(sici)1521-3773(19980316)37:5<628::aid-anie628>3.0.co;2-t
Subject(s) - cidnp , chemistry , photochemistry , electron transfer , electron paramagnetic resonance , spectroscopy , electron , polarization (electrochemistry) , nuclear magnetic resonance , physics , quantum mechanics
Cyclic radical cations Met‐(S…█ + N) of methionine could play an important role in processes such as long‐range electron transfer across cell membranes and oxidative damage to cells. CIDNP spectroscopy (CIDNP = chemically induced dynamic nuclear polarization) furnishes direct structural proof and allows experimental investigation of the spin‐density distribution in the two‐center three‐electron bonds.