Platinum dichloro l,2-ethanediylbis

PtCl2N2C14H Platinum, bis(benzoni-trile)dichloro-, 26 345 PtCl2P2C,ftH24, Platinum, dichloro[l,2-ethanediylbis(diphenylphosphine)]-, 26 370... 

Several mixed-metal clusters containing platinum and cobalt are known and some of them have been employed as methanol homologation catalysts.1 Among them, the title compound2 was first prepared unambiguously from the reaction of dichloro[l,2-ethanediylbis(diphenylphosphine)]platinum with sodium tetracarbonylcobaltate, Na[CO(CO)4]. The compound also may be prepared by the reaction of [l,2-ethanediylbis(diphenyl-phosphine)]bis(phenylethynyl)pIatinum with Co COJg.1... 

Sodium tetracarbonylcobaltate(l —) is prepared from Co2(CO)g (0.6 g) and 3% of Na-Hg (15 g) in tetrahydrofuran (THF).8 Dichloro[l,2-ethanediylbis-(diphenylphosphine)]platinum (1.0 g, 1.5 mmol) is suspended in freshly distilled, dry, and oxygen-free THF (20 mL) in a 100-mL two-necked flask fitted with a refluxing condenser, a Teflon-coated magnetic stirring bar, and an inlet for nitrogen connected to a mercury or mineral oil bubbler for venting excess gases. 

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