Question

vibrational spectra of metal carbonyls for bonding

Answer 1

 simple model is proposed for analyzing and assigning the infrared-active carbonyl stretching frequencies of simple and substituted metal carbonyls of the type ML,(CO) &,, that is, those with an essentially octahedral distribution of the ligands, L, and carbonyl groups about the metal atom. The model involves qualitative and semiquantitative inferences from valence theory as to the signs and relative magnitudes of CO stretching force constants and the coefficients of quadratic interaction terms coupling the stretching motions of different CO groups. In …