PHOTOFRAGMENTATION DYNAMICS OF Cr(CO)6 IN THE GAS PHASE.

Article abstract of DOI:10.1021/ja00358a053

CO laser absorption spectroscopy has been used to study the dissociation dynamics of Cr(CO)//6 following photoactivation. Results suggest that the excited state prepared at 249 nm yields CO both by rapid predissociation, with an efficiency phi //S less than equivalent to 0. 36, and by intersystem crossing to a long-lived triplet, with an efficiency phi //T greater than equivalent to 0. 64. The triplet state thus formed undergoes serial decarbonylation yielding Cr(CO)//5 and Cr(CO)//4. Refs.