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Resonance Raman spectra of tris(violurate)ruthenium(II) and of mixed (violurate)bis(2,2′-bipyridine)ruthenium(II) complexes

✍ Scribed by V. R. L. Constantino; H. E. Toma; L. F. C. de Oliveira; P. S. Santos

Publisher: John Wiley and Sons
Year: 1992
Tongue: English
Weight: 312 KB
Volume: 23
Category: Article
ISSN: 0377-0486
DOI: 10.1002/jrs.1250231110

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✦ Synopsis

Abstract

The existence of two independent chromophores in [Ru(bipy)~2~(H~2~V)]^+^, where H~2~V^−^ = violurate anion and bipy = 2,2′bipyridine, was demonstrated by comparing its resonance Raman spectra with those displayed by the [Ru(H~2~V)~3~]^−^ analogue. In the former, the electronic band at 478 nm was assigned to the Ru → H~2~V MLCT transition, whereas the band at 415 nm was assigned to the Ru → bipy MLCT transition. In both species a tentative assignment is proposed for the enhanced modes based on comparison with related examples from the literature.

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