Matrix isolation evidence for a primary co dissociation pathway in the photochemistry of the metal-metal bonded dimers (η 5-C 5H 5) 2M 2(CO) 6 (M = Mo, W)

Abstract

Photolysis of the metal-metal bonded dimers (η 5-C 5H 5) 2M 2(CO) 6 (M = Mo, w) in polyvinyl chloride film (12–77 K) and frozen gas (12 K) matrices leads to the formation of the novel dimers (η 5-C 5H 5) 2M 2(CO) 5 which have a structure suggested, on the basis of IR spectroscopy, to contain a four electron donor bridging CO ligand and two semi-bridging CO ligands.