Di-μ-chloro-bis[(2-ammoniobenzenethiolato-S)chloromercury(II)]

The title compound, [Hg₂Cl₄(C₆H₇NS)₂], was obtained from the reaction of HgCl₂ with benzothiazole and studied by X-ray diffraction and IR spectroscopy. The molecule is centrosymmetric with Hg—μ-Cl distances of 2.720 (1) and 2.976 (1) Å. The 2-aminobenzenethiol ligand (existing in a zwitterionic form) is bonded to Hg through the S atom, with an Hg—S distance of 2.340 (2) Å. There are N—H...Cl hydrogen bonds involving the bridging Cl atoms, as well as a bifurcated hydrogen bond involving the terminal Cl atoms.

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