N′-[(1E,2E)-3,7-Dimethylocta-2,6-dien-1-ylidene]pyridine-4-carbohydrazide

Abstract

In the title compound, C16H21N3O, the molecule adopts anEconformation about the central C=N double bond. The 2-methylpent-2-ene group is disordered over two sets of sites, with a refined occupancy ratio of 0.785 (8):0.215 (8). The dihedral angle between the essentially planar [the r.m.s. value for the major component is 0.021 (7) and its maximum deviation is 0.025 (4) Å; the r.m.s. value for the minor component is 0.03 (4) and its maximum deviation is 0.05 (3) Å] major and minor components of the 2-methylbut-2-ene group is 35.9 (13)°. In the crystal, C—H...O and N—H...O hydrogen bonds link the molecules, with the same O atom acting as the acceptor. This results inC11(4) andC11(5) [001] chains.