Tetraaquabis[5-(3-pyridyl-κN)pyrimidine]zinc(II) bis(trifluoromethanesulfonate): a novel cationic complex and three-dimensional hydrogen-bonded network
Abstract
The title compound, [Zn(C9H7N3)2(H2O)4](CF3O3S)2, contains an octahedral [ZnL2(H2O)4]2+ cationic complex with trans geometry (Zn site symmetry ), and each 5-(3-pyridyl)pyrimidine (L) ligand is coordinated in a monodentate fashion through the pyridine N atom. In the extended structure, these complexes, with both hydrogen-bond acceptor (pyrimidine) and donor (H2O) functions, are linked to each other by intermolecular water–pyrimidine O—H...N hydrogen-bonding interactions, resulting in a double chain along the crystallographic a axis. The trifluoromethanesulfonate anions are integrated into the chains via O—H...O hydrogen bonds between the coordinated water and sulfonate O atoms. These double chains are associated into a novel three-dimensional network through interchain water–pyrimidine O—H...N hydrogen bonds. The asymmetric ligand plays an important role in constructing this unusual supramolecular structure.
