Synthesis, EPR spectrum and X-ray structure of tetra-n-butylammonium bis(benzene-1,2-dithiolato(2−)-κ2S,S′)platinate(III)

Add time:08/09/2019    Source:sciencedirect.com

The new salt, tetra-n-butylammonium bis(benzene-1,2-dithiolato(2−)-κ2S,S′)platinate(III), [NBu4][Pt(C6H4S2)2] (1), has been synthesized in ethanol/water, and fully characterized by single crystal X-ray structure determination. The central platinum in the complex ion [Pt(bdt)2]− is tetracoordinated by the S atoms of the bdt2− ligands (bdt2− is benzene-1,2-dithiolate) in a square-planar geometry. The well-resolved frozen solution EPR spectrum exhibits rhombic symmetry. The room temperature effective magnetic moment (μeff = 1.80 Bohr magneton) is in line with this spectrum and strongly supports the Pt(III) oxidation state in 1. This observation is in excellent agreement with previous results reported on closely related Ni(III), Pd(III) and Pt(III) species.

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