catena-Poly[(dichloridozinc)-μ-4,4′-bis[(1H-imidazol-1-yl)methyl]biphenyl-κ2N3:N3′]

In the title compound, [ZnCl2(C20H18N4)]n, the ZnII ion lies on a twofold rotation axis and is four-coordinated in a tetrahedral geometry defined by two Cl anions and two N atoms from two 4,4′-bis[(imidazol-1-yl)methyl]biphenyl ligands. The mid-point of the ligand is located on an inversion center, and shows a trans conformation. The ligands link the ZnII ions, forming a chain structure along [10-1].