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Analysis of the excitation profiles of Raman bands of linear-chain mixed-valence complexes. The geometry of [Pt(en)2][Pt(en)2Br2]Br4 in the intervalence state

✍ Scribed by Robin J.H. Clark; Trevor J. Dines

Publisher: Elsevier Science
Year: 1991
Tongue: English
Weight: 445 KB
Volume: 185
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(91)80248-v

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✦ Synopsis

Calculations of the resonance Raman excitation profiles for the v, band and its overtones have been performed for the linearchain mixed-valence platinum complex [Pt(en)*] [Pt(en)zBr,]Br, It is found that the Pt'"-Br bond length increases by 0.075 A in the intervalence state. A satisfactory fit to the excitation profiles requires the inclusion of a second excited state at 16500 cm-'. which we have assigned to Br+Pt'"charge transfer.

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