Synthesis, structure, and infrared spectroelectrochemistry of the cluster [Os3H(µ-FcCO)(CO)10](Fc = ferrocenyl), a product of oxidative addition of formylferrocene to [Os3(CO)10(MeCN)2]

Abstract

Reaction of the cluster [Os₃(CO)₁₀(MeCN)₂] with formylferrocene gives the oxidative addition product [Os₃H(µ-FcCO)(CO)₁₀](Fc = ferrocenyl)(structurally characterised by X-ray crystallography), which has been shown by cyclic voltammetry and i.r. spectroelectrochemistry to undergo a reversible one-electron oxidation at iron and an irreversible two-electron reduction at the osmium cluster.