Photoreactivity of hexakis[μ-(acetato-O:O′)]-μ3-oxotriruthenium(III) cation. Photoreduction by oxalate

Abstract

In the presence of oxalate the trinuclear oxide-bridged complex [(Ru3O)-O-III(acetate)(6)(CH3OH)(3)](+) in methanol undergoes a photoreduction to the Ru-II/Ru-III mixed-valence complex [Ru3O(acetate)(6)(CH3OH)(3)] with phi = 0.01 and 5 x 10(-4) at lambda (irr) = 366 and 546 nm, respectively. It is suggested that the photolysis is initiated by an oxalate to Ru(III) CT state. (C) 2001 Elsevier Science B.V. All rights reserved.