Resonance raman spectra of tris (violurate) ruthenium (ii) and of mixed ( violurate ) bis (2,2-bipyridine) ruthenium (ii) complexes - Constantino, Vera Regina Leopoldo; Toma, Henrique Eisi; Oliveira, L F C; Santos, Paulo Sérgio (Journal of Raman Spectroscopy, 1992)