Abstract
The Hg atom in the title monomeric complex, dichlorobis(3-imidazolium-2-thiolato-S)mercury(II), [HgCl2(C3H4N2S)2], is four-coordinate having an irregular tetrahedral geometry composed of two Cl atoms [Hg—Cl 2.622 (2) and 2.663 (2) A] and two thione S atoms [Hg—S 2.445 (2) and 2.462 (2) A]. The monodentate thione ligand adopts a zwitterionic form and exists as the 3-imidazolium-2-thiolate ion. The bond angle S1—Hg—S2 of 130.87 (8)° has the greatest deviation from ideal tetrahedral geometry. Intermolecular hydrogen bonds between two of the four N—H groups and one of the Cl atoms [3.232 (8) and 3.238 (7) A] stabilize the crystal structure, while the other two N—H groups contribute through the formation of N—H⋯Cl intramolecular hydrogen bonds with the other Cl atom [3.121 (7) and 3.188 (7) A].
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Schedule a callMore From: Acta crystallographica. Section C, Crystal structure communications
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