Abstract

The reaction of sodium chloroiridate with acetonyl-, cyanomethyl-, and 2-butenyltriphenylphosphonium chloride in dimethyl sulfoxide was used to synthesize ionic iridium complexes [Ph3PR][trans-IrCl4(DMSO)2] (R = CH2C(O)Me, CH2CN, CH2CH=CHMe). The phosphorus atoms in the [Ph3RP]+ cations have a slightly distorted tetrahedral coordination. The dimethyl sulfoxide ligand in the octahedral anions [trans-IrCl4(DMSO)2] is coordinated to metal via sulfur atoms.

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