Photoredox behavior of a trinuclear Ru(III), Ru(II), Co(III) complex induced by metal-to-metal charge transfer excitations

URN to cite this document:: urn:nbn:de:bvb:355-epub-135660
DOI to cite this document:: 10.5283/epub.13566

Kunkely, Horst ; Pawlowski, V. ; Vogler, Arnd

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Date of publication of this fulltext: 17 Mar 2010 09:02

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Abstract

The trinuclear complex (NH3)5CoIII(μ-NC)CoIII(CN)4(μ-CN)RuII(CN)53− shows a long wavelength absorption near 370 nm which is assigned to a metal-to-metal charge transfer (MMCT) transition from Ru(II) to the central Co(III) ion. Light absorption by this bands leads to a redox decomposition: (NH3)5CoIII(CN)4(μ-CN)RuII(CN)53−→5NH3+ Co2++CoIII(CN)63−+ RuIII(CN)5H2O2−. It is suggested that the initial ...