REDUCTIVE QUENCHING OF EXCITED-STATES OF CHROMIUM(III)-POLYPYRIDYL COMPLEXES WITH ALKYL ARYL SULFIDES

Authors
GNANARAJ GA RAJAGOPAL S SRINIVASAN C PITCHUMANI K
Citation
Ga. Gnanaraj et al., REDUCTIVE QUENCHING OF EXCITED-STATES OF CHROMIUM(III)-POLYPYRIDYL COMPLEXES WITH ALKYL ARYL SULFIDES, Tetrahedron, 49(21), 1993, pp. 4721-4740
Citations number
51
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron → ACNP
ISSN journal
00404020
Volume
49
Issue
21
Year of publication
1993
Pages
4721 - 4740
Database
ISI
SICI code
0040-4020(1993)49:21<4721:RQOEOC>2.0.ZU;2-8
Abstract
The variation in the quenching rate constants, k(q), of Cr(NN)33+ wit h the change in the structure of organic sulphides in deaerated aceton itrile solutions in explained with Marcus model. The retardation in k( q) values for sulphides with bulky alkyl groups in RSPh is accounted f or in terms of change of electron transfer distance. The formation of oxidised products in aerated solutions is explained by the formation o f singlet oxygen in the system.