254733-99-8Relevant articles and documents
Two routes to bis(μ-diphenylphosphino)methane diplatinum halides bridged by sulfur monoxide
Huang, Ruili,Guzei, Ilia A.,Espenson, James H.
, p. 5420 - 5422 (1999)
The new compounds Pt2(μ-diphenylphosphinomethane)2(μ-SO)X2, with X = Cl and I, have been prepared and characterized. One route was to use Pt2-(μ-dppm)2X2 to trap the sulfur monoxide liberated from decomposition of a suiting, intermediate formed from the oxidation of a thioketone sulfoxide with hydrogen peroxide, catalyzed by CH3ReO3 (MTO). The second and preferable route consists of the oxidation of Pt2(μ-dppm)2-(μ-S)X2 with hydrogen peroxide, catalyzed by CH3ReO3 (MTO). The X-ray structural analysis of Pt2(μ-dppm)2-(μ-SO)Cl2 showed that it has an A-frame structure in which the bridge sulfur atom has the geometry of a distorted trigonal bipyramid.