Photochemical Redox Decomposition of μ‐Cyano‐pentacyanoruthenium (II)pentaamminecobalt(III) Ion
- 1 January 1975
- journal article
- research article
- Published by Wiley in Berichte der Bunsengesellschaft für physikalische Chemie
- Vol. 79 (1) , 83-86
- https://doi.org/10.1002/bbpc.19750790116
Abstract
In the complex ion [(NH3)5Co(III)NCRu(II)(CN)5]− both metals are linked by a cyanide bridge. The electronic spectrum of this compound exhibits a new absorption band which does not occur in the spectra of the two isolated Co(III) and Ru(II) complexes which constitute the binuclear complex. This new band is assigned to an intervalence transfer (IT) transition from Ru(II) to Co(III). Upon irradiation into this band the aqueous binuclear complex underwent a redox reaction under formation of Ru(CN) and Co2+ with a quantum yield Φ = 0.46. The mechanism of this photochemical reaction and its relationship to similar thermal redox reactions is discussed.Keywords
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