Gas-Phase Coordination Reaction of C2H4 onto W(CO)4. Direct Observation of the Internal Excitation in the Coordination Product

Abstract

Abstract Time-resolved infrared absorption spectra were observed following the pulsed 266-nm photolysis of W(CO)6 in the presence of C2H4 in the gas phase at room temperature. The transient spectra showed that the coordination of C2H4 onto “naked” coordinatively bisunsaturated tungsten carbonyl W(CO)4 resulted in the formation of internally excited W(CO)4(η2-C2H4)*.