Synthesis and X-ray crystal structure of the cluster cation [Os4(µ2-H)3(CO)12(NCMe)2]+: an example of an unsupported butterfly Os4 geometry
Abstract
The cation [Os4(µ2-H)3(CO)12(NCMe)2]+ has been obtained by electrochemical and chemical (with NOX,X = BF4 or PF6) oxidation of [Os4H3(CO)12]– in acetonitrile; the four Os atoms define a ‘butterfly’ configuration with all the CO and MeCN ligands bonded in a terminal fashion.