Abstract

Reaction of sodium hexachloroosmate(IV) dihydrate with (2-oxopropyl)- and (2-carboxyethyl)-triphenylphosphonium chlorides in dimethyl sulfoxide afforded complexes [Ph3PR]2[OsCl6]·4DMSO, where R = CH2C(O)Me and CH2CH2C(O)OH. The complexes were characterized by X-ray diffraction method; phosphorus atoms in cations [Ph3RP]+ possessed slightly distorted tetrahedral coordination.

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