(E)-4-Methoxy-N00-(2,4,5-trimethoxybenzylidene) benzohydrazide hemihydrate

• Main Authors: Chantrapromma, Suchada, Boonnak, Nawong, Horkaew, Jirapa, Ching, Kheng Quah, Fun, Hoong Kun
• Format: Article
• Language: English
• Published: International Union of Crystallography 2014
• Subjects: QC1-999 Physics
• Online Access: http://eprints.usm.my/38796/1/E%29-4-Methoxy-N%27-%282%2C4%2C5-trimethoxybenzylidene%29benzohydrazide.pdf; http://eprints.usm.my/38796/; https://doi.org/10.1107/S1600536814000531
• Institution: Universiti Sains Malaysia

The title compound crystallizes as a hemihydrate, C18H20N2O5�0.5H2O. The molecule exists in an E conformation with respect to the C N imine bond. The 4-methoxyphenyl unit is disordered over two sets of sites with a refined occupancy ratio of 0.54 (2):0.46 (2). The dihedral angles between the benzene rings are 29.20 (9) and 26.59 (9)�, respectively, for the major and minor components of the 4- methoxy-substituted ring. All methoxy substituents lie close to the plane of the attached benzene rings [the Cmethyl—O—C— C torsion angles range from �4.0 (12) to 3.9 (2)�]. In the crystal, the components are linked into chains propagating along [001] via N—H� � �O and O—H� � �O hydrogen bonds and weak C—H� � �O interactions.