PHOTOREDOX DECOMPOSITION OF [COBALAMIN-MU-NC-FE-II(CN)(5)](3-) INDUCED BY METAL-TO-METAL CHARGE-TRANSFER EXCITATION

Authors
KUNKELY H VOGLER A
Citation
H. Kunkely et A. Vogler, PHOTOREDOX DECOMPOSITION OF [COBALAMIN-MU-NC-FE-II(CN)(5)](3-) INDUCED BY METAL-TO-METAL CHARGE-TRANSFER EXCITATION, Zeitschrift fur Naturforschung. B, A journal of chemical sciences, 51(2), 1996, pp. 245-248
Citations number
27
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Zeitschrift fur Naturforschung. B, A journal of chemical sciences → ACNP
ISSN journal
09320776
Volume
51
Issue
2
Year of publication
1996
Pages
245 - 248
Database
ISI
SICI code
0932-0776(1996)51:2<245:PDO[I>2.0.ZU;2-U
Abstract
In the presence of oxygen aqueous solutions of the binuclear complex [ cobalamin-mu-NC-Fe(CN)(5)](3-) undergo a redox photolysis (phi similar to 2 x 10(-3) at lambda(irr) = 405 nm) which yields aquocobalamin and [Fe(CN)(6)](3-). It is suggested that this photoreaction is induced b y direct metal-to-metal charge transfer (MMCT) excitation. On the cont rary, [cobalamin-CL-NC-Ru(CN)(5)](3-) is photo-inert because a reactiv e MMCT state is not accessible.