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Resonance Raman spectra of tris(violurate)ruthenium(II) and of mixed (violurate)bis(2,2′‐bipyridine)ruthenium(II) complexes
Author(s) -
Constantino V. R. L.,
Toma H. E.,
de Oliveira L. F. C.,
Santos P. S.
Publication year - 1992
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250231110
Subject(s) - ruthenium , raman spectroscopy , chromophore , resonance (particle physics) , chemistry , 2,2' bipyridine , molecular electronic transition , spectral line , bipyridine , ion , photochemistry , crystallography , molecule , catalysis , organic chemistry , physics , crystal structure , atomic physics , optics , astronomy
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.