(E)-N′-(3,4-Dimethoxybenzylidene)nicotinohydrazide monohydrate

• Main Authors: J. Josephine Novina, G. Vasuki, M. Suresh, M. Syed Ali Padusha
• Format: Article
• Language: English
• Published: International Union of Crystallography 2014-07-01
• Series: Acta Crystallographica Section E
• Online Access: http://scripts.iucr.org/cgi-bin/paper?S1600536814013798

In the title hydrated compound, C15H15N3O3·H2O, the nicotinohydrazide molecule adopts a trans conformation with respect to the C=N double bond. The dihedral angle between the benzene and pyridine rings is 5.10 (14)°. In the crystal, the solvent water molecule acts as an acceptor, forming an N—H...O hydrogen bond supported by two C—H...O contacts. It also acts as a donor, forming bifurcated O—H...(O,O) and O—H...N hydrogen bonds that combine with the former contacts to form zigzag chains of molecules along the c-axis direction. An additional O—H...O donor contact completes a set of six hydrogen bonds to and from the water molecule and connects it to a third nicotinohydrazide molecule. This latter contact combines with weaker C—H...O hydrogen bonds supported by a C—H...π contact to stack molecules along b in a three-dimensional network.