FT-RAMAN AND FT-IR SPECTRA OF SOME HETEROBIMETALLIC COMPLEXES WITH PHENYLCYCLOPENTADIENYL LIGANDS

The FT-Raman and selected IR spectra of 14 heterobimetallic complexes of (CO)(3)CrC6H5-C(5)H(4)M(CO)(n)(NO)(m)X (M = transition metal, X = o ther ligands) are reported. FT-Raman exhibits distinct strong characte ristic bands of coordinated C6H5-C5H4 ligand ring deformation near 154 0, 1490 and 1280 cm(-1) and the coordinated phenyl ring deformation mo de near 1000 cm(-1), which are negligible in IR spectra. It is also ea sy to find the M-CO stretching and M-C-O bending as well as phenyl-M s tretching bands in the FT-Raman spectra. The v(CO) IR absorptions in T HF solution were reasonably assigned according to the local symmetry o f the complexes.