Formation of an oxo-free rhenium(v) complex with 2-aminothiophenol

The reaction of a twofold molar excess of 2-aminothiophenol (H2L) with trans-[ReOCl3(PPh3)2] in benzene led to the isolation of the oxo-free rhenium(V) complex [ReCl(PPh3)L2] (1). IR, 1H NMR and X-ray crystallographic results indicate that the ligands L coordinate in a dianionic amidothiolate form to the metal and that the complex has the unusual skew-trapezoidal bipyramidal geometry. The ligands L have an average bite angle of 78.8(1)°, with average Re–N and Re–S bond lengths equal to 1.978(5) and 2.297(1) Å, respectively.

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