Bis[μ- N , N ′-bis(quinolin-8-yl)pyridine-2,6-dicarboxamido]dizinc(II) dichloromethane disolvate

The title compound, [Zn2(C25H15N5O2)2]·2CH2Cl2, is a dinuclear double-helical complex which lies on a crystallographic twofold axis. In the complex, both ligands are partitioned into two tridentate domains which allow each ligand to bridge both metal centres. Each ZnII atom is six-coordinated in a distorted octa­hedral environment formed by two amide N atoms, two quinoline N atoms and two pyridine N atoms from two different ligand mol­ecules, with the central pyridine ring, unusually, bridging two ZnII atoms. The deprotonated ligand is not planar, the amide side chains being considerably twisted out from the plane of the central pyridine ring.