Transition metal complexes carbonyl ligands stretching modes

A notable case in which the region of the spectmm to be dealt with is known is that of carbonyl ligands in transition metal complexes. The carbonyl ligand stretching modes occur in the range 2100-1700 cm. This region is usually not shared with other functional... 

A general discussion of the infrared spectra of transition metal complexes has been published (23). Although correlations of CO bending modes (24) and of band intensities (25,26) have appeared and vibrations of other ligands are often noted, the number of CO stretching modes and their exact frequencies are the data most frequently cited for metal carbonyl com-... 

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