Unexpected formation of [Pd(bedp)][Pd2Cl4(μ-SMe)2] (bedp = 1,4-bis[2-(3,5-dime-thyl-1-pyrazolyl)ethyl]piperazine). Structural characterisation and spectroscopic properties

摘要

Crystallisation of [Pd(bedp)]Cl2 (bedp = 1,4-bis[2-(3,5-dimethyl-1-pyrazolyl)ethyl] piperazine) in DMSO affords the compound [Pd(bedp)][Pd2Cl4(μ-SMe)2], where the cation complex is mononuclear and the anion complex is dinuclear. The most surprising feature is the formation of the anion [Pd2Cl4(μ-SMe)2]~(2-), as this anion has not been described in the literature. In this anion, each palladium atom is coordinated by two thiolate bridging sulfurs and two terminal chlorides.