Date Published: March 01, 2012
Publisher: International Union of Crystallography
Author(s): Can Li, Guilong Zhang, Zhenming Yin.
In the title molecule, [ZnCl2(C11H10N2O2)2], the ZnII ion, situated on a twofold axis, is in a distorted tetrahedral coordination environment formed by two chloride anions and two pyridine N atoms of the two organic ligands. In the pyrrole-2-carboxylate unit, the pyrrole N—H group and the carbonyl group point approximately in the same direction. The dihedral angle between the two pyridine rings is 54.8 (3)°. The complex molecules are connected into chains extending along  by N—H⋯Cl hydrogen bonds. The chains are further assembled into (-101) layers by C—H⋯O and C—H⋯Cl interactions.
For the hydrogen-bonded assemblies of pyrrole-based structures, see: Wang & Yin (2007 ▶); Yin & Li (2006 ▶); Cui et al. (2009 ▶).