Acta Cryst. (2011). E67, m603 [ doi:10.1107/S1600536811013596 ]
Abstract: In the title one-dimensional coordination polymer, [Cu(NO3)2(C32H22N4)]n, the Cu2+ ion (site symmetry 2) is coordinated by two nitrate O atoms and two N atoms from two 4,4'-bis(benzoimidazol-1-yl)terphenyl (L) ligands in a distorted cis-CuN2O2 square-planar coordination geometry. An alternative description of the metal coordination geometry, if long Cu-O contacts to the bonded nitrate anions are considered, is an extremely distorted cis-CuN2O4 octahedron. The complete L ligand is generated by crystallographic twofold symmetry and connects the metal ions into infinite chains propagating in . The dihedral angle between the benzimidazole ring system and the adjacent benzene (B) ring is 51.12 (11)° and the dihedral angle between the B ring and the central ring is 19.45 (13)°.
Online 16 April 2011
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