Acta Cryst. (2008). E64, m555  [ doi:10.1107/S1600536808006788 ]

Bis{-2,5-bis[4-(2-pyridylmethylamino)phenyl]-1,3,4-oxadiazole}bis[dichloridomercury(II)]

L.-L. Liu, G.-G. Hou, J.-P. Ma, R.-Q. Huang and Y.-B. Dong

Abstract: In the title centrosymmetric compound, [Hg₂Cl₄(C₂₆H₂₂N₆O)₂], each Hg^II center adopts a distorted HgN₃Cl₂ trigonal bipyramidal coordination geometry, formed by two pyridine N atoms, one imine N atom and two chloride anions. Within the organic ligand, the oxadiazole ring is nearly coplanar with the two benzene rings [dihedral angles = 5.9 (4) and 6.5 (4)°] and nearly perpendicular to the two pyridine rings with the same dihedral angle of 77.4 (4)°. The two organic ligands bridge two Hg^II ions to form the macrocyclic complex. Intermolecular N-HCl and N-HN hydrogen bonding helps to stabilize the crystal structure.

Online 14 March 2008

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