Add time:07/31/2019         Source:sciencedirect.com

Infrared (250–4000 cm−1) and laser Raman spectra (75–3300 cm−1) were obtained on C5H5V(CO)4 and CH3COC5H4V(CO)4. A vibrational assignment is proposed which is based upon the concept of “local symmetry”. The cyclopentadienyl ring breathing frequency was found to be associated with the strong sharp Raman line at 1117 cm−1. Force constants calculated for the carbonyl stretching vibrations were comparable to those of similar π-bonded metal carbonyls.

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