Tetramethylammonium Tris(thiobenzoato-O,S)tin(II)

The synthesis, structure and ¹¹⁹Sn NMR spectrum of the title compound, (C₄H₁₂N)[Sn(C₇H₅OS)₃], are reported. Crystallographic threefold symmetry is present in both the anion and cation. In the [Sn(SOCPh)₃]⁻ anion, the Sn^II coordination geometry is triangular pyramidal, with the S atoms forming the basal plane and the Sn atom at the apex; the Sn—S distance is 2.592 (2) Å. In addition, weak intramolecular interactions occur between the Sn atom and the carbonyl O atoms [Sn...O 2.967 (2) Å]. The ¹¹⁹Sn NMR chemical shift of the title compound is −227 p.p.m. (MeCN, 295 K).

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