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ABSTRACT: In the title complex, [Hg(CN)2(C3H8N2S)2], the HgII atom is located on a twofold rotation axis. It is four-coordinate having an irregular tetrahedral geometry composed of two cyanide C atoms [Hg—C = 2.090 (6) Å] and two thione S atoms of N,N′-dimethylthiourea (dmtu) [Hg—S = 2.7114 (9) Å]. The NC—Hg—CN bond angle of 148.83 (13)° has the greatest deviation from the ideal tetrahedral geometry. The molecular structure is stabilized by intramolecular N—H...S interactions involving dmtu units related by the twofold symmetry. In the crystal, intermolecular N—H...N(CN) hydrogen-bonding interactions link symmetry-related molecules into a two-dimensional network in (110).
Acta Crystallographica Section E. 01/2010;