Synthesis and characterisation of mixed-metal clusters containing elements of the iron triad and gold: X-ray crystal structures of [Os4Au(µ-H)(CO)13(PEt3)] and [Os4Au(µ-H)3(CO)12(PEt3)]

Abstract

The clusters [Os₄AuH(CO)₁₃(PR₃)](1), [Os₃FeAuH(CO)₁₃(PR₃)](2), [Os₄AuH₃(CO)₁₂(PR₃)](3), [Ru₄AuH₃(CO)₁₂(PEt₃)](4), and [Os₅AuH(CO)₁₅(PR₃)](5)(R = Ph, Et) have been synthesised by the reaction of the appropriate cluster anion with [PR₃AuCl]; the structures of (1) and (3) have been established by single-crystal X-ray analyses.