Dichlorido{2-hydroxyimino-N′-[1-(2-pyridyl)ethylidene]propanohydrazide-κ3N,N′,O}zinc(II) hemihydrate

• Main Authors: Igor O. Fritsky, Henryk Kozłowski, Kinga Kulon, Tetyana Yu. Sliva, Yurii S. Moroz
• Format: Article
• Language: English
• Published: International Union of Crystallography 2008-02-01
• Series: Acta Crystallographica Section E
• Online Access: http://scripts.iucr.org/cgi-bin/paper?S160053680706535X

The title compound, [ZnCl2(C10H12N4O2)]·0.5H2O, was readily prepared by the reaction between ZnCl2 and 2-hydroxyimino-N′-[1-(2-pyridyl)ethylidene]propanohydrazide. The Zn atom has a distorted trigonal–bipyramidal geometry with two Cl atoms and one azomethine N atom in the equatorial plane and one pyridine N atom and one amide O atom in the axial positions. In the crystal structure, complex molecules are connected in pairs by N—H...Cl hydrogen bonds, formed between the amide NH of one molecule and the Cl atom of a neighboring one. Molecular pairs are connected by hydrogen bonds involving the uncoordinated water molecule, which lies on a twofold axis.