Bis(μ2-pyridine-2-carboxamide oximato)bis[(pyridine-2-carboxamide oxime)zinc] dinitrate

Abstract

In the title dinuclear compound, [Zn2(C6H6N3O)2(C6H7N3O)2](NO3)2, the ZnII cation is N,N′-chelated by one pyridine-2-carboxamide oximate anion and one pyridine-2-carboxamide oxime molecule, and is further bridged by an oxime O atom from the adjacent pyridine-2-carboxamide oximate anion, forming a distorted trigonal bipyramidal coordination. Two pyridine-2-carboxamide oximate anions bridge two ZnII cations to form the centrosymmetric dinuclear molecule. Extensive O—H...O, N—H...O and O—H...N hydrogen bonds are present in the crystal structure.