Acta Cryst. (2009). E65, m15-m16  [ doi:10.1107/S1600536808040269 ]

Bis(-N,N'-di-3-pyridylpyridine-2,6-dicarboxamide)bis[dichloridomercury(II)] N,N-dimethylformamide disolvate

L.-H. Huang and J. Wu

Abstract: The asymmetric unit of the binuclear title complex, [Hg₂Cl₄(C₁₇H₁₃N₅O₂)₂]·2C₃H₇NO, contains one-half of the centrosymmetric molecule and one dimethylformamide solvent molecule. The Hg^II atom is four-coordinated by two N atoms from two ligands and two Cl atoms in a distorted tetrahedral coordination geometry. Intramolecular N-HO hydrogen bonds may be effective in the stabilization of the structure. In the crystal structure, - contacts between pyridine rings [centroid-to-centroid distances 3.629 (3) and 3.595 (3) Å] may further stabilize the structure.

Online 6 December 2008

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