The reaction of NO⁺with some anions of osmium and ruthenium: synthesis and X-ray characterization of [H₃Os₄(CO)₁₂(µ₂-NO)] and [HRu₄N(CO)₁₁P(OMe)₃]

Abstract

Reaction of [H3Os4(CO)12]– with NoBF4 in CH2Cl2 gives the nitrosyl cluster [H3Os4(CO)12(µ-NO)] in which the NO ligand has been shown by X-ray analysis to adopt a unique bonding mode bridging the wing-tips of a butterfly arrangement of metal atoms; the analogous reaction of [H3Ru4(CO)12]– with NoBF4 gives instead the nitrido-cluster [HRu4N(CO)12] in low yield, whose formulation has been confirmed by an X-ray analysis of the derivative [Hru4N(CO)11P(OMe)3].