Group 4 transition-metal atom reactions with C[S.sub.2] and OCS: Infrared spectra and density functional calculations of SMCS, SM-([[eta].sup.2]-CS), SMCO, and OMCS in solid argon

The analogous group 4 metal reactions with OCS have resulted in SMCO, OMCS and Mn([[eta].sub.2]-CO)S products. The relatively higher energy of the CO insertion product with respect to the CS insertion product is manifested in lower product yields for the former and the product identifications are verified by isotopic substitution and by density functional vibrational frequency calculations.