Crystal structure of 2-hydroxyimino-2-(pyridin-2-yl)-N′-[1-(pyridin-2-yl)ethylidene]acetohydrazide

Abstract

The molecule of the title compound, C14H13N5O2, is approximately planar (r.m.s deviation for all non-H atoms = 0.093 Å), with the planes of the two pyridine rings inclined to one another by 5.51 (7)°. The oxime group issynto the amide group, probably due to the formation of an intramolecular N—H...N hydrogen bond that forms anS(6) ring motif. In the crystal, molecules are linked by pairs of bifurcated O—H...(O,N) hydrogen bonds, forming inversion dimers. The latter are linkedviaC—H...O and C—H...N hydrogen bonds, forming sheets lying parallel to (502). The sheets are linkedviaπ–π stacking interactions [inter-centroid distance = 3.7588 (9) Å], involving the pyridine rings of inversion-related molecules, forming a three-dimensional structure.