Dalton communications. Synthesis of novel mixed-metal clusters of mercury and osmium; crystal and molecular structures of cis-[Os(CO)4{(µ-Hg)Os3(CO)10(µ-η2-CHCHPh)}2] and [{Os3(CO)10(µ-η2-CHCHPh)}2(µ4-Hg)]

Abstract

Reaction of [Os₃H₂(CO)₁₀] with Hg(CCPh)₂ afforded the novel mixed-metal clusters cis-[Os(CO)₄{(µ-Hg)Os₃(CO)₁₀(µ-η²-CHCHPh)}₂]1 and [{Os₃(CO)₁₀(µ-η²-CHCHPh)}₂(µ₄-Hg)]2 in moderate yield, the crystal structures of which have been determined; 1 converts into 2via Hg–Os bond cleavage under ambient conditions.