catena-Poly[[[cis-bis(1-phenyltetrazole-κN4)copper(II)]-di-μ-chloro] hemi(1-phenyltetrazole)]
Abstract
The title compound, {[CuCl2(PhTz)2]·0.5PhTz}n (PhTz is 1-phenyltetrazole, C7H6N4), has a polymeric structure, with uncoordinated disordered PhTz molecules in the cavities. The coordination polyhedron of the Cu atom is a highly elongated octahedron. The equatorial positions are occupied by two Cl atoms [Cu—Cl = 2.2687 (9) and 2.2803 (7) Å] and two N atoms of the PhTz ligands [Cu—N = 2.0131 (19) and 2.0317 (18) Å]. The more distant axial positions are occupied by two Cl atoms [Cu—Cl = 3.0307 (12) and 2.8768 (11) Å] that lie in the equatorial planes of two neighbouring Cu octahedra. The [CuCl2(PhTz)2] units are linked by Cu—Cl bridges into infinite chains extending parallel to the a axis. The chains are linked into two-dimensional networks by intermolecular C—H⋯N interactions between the phenyl and tetrazole fragments, and by face-to-face π–π interactions between symmetry-related phenyl rings. These two-dimensional networks, which lie parallel to the ac plane, are connected by intermolecular π–π stacking interactions between phenyl rings, thus forming a three-dimensional network.
