1,5-Bis[(E)-1-(2-hydroxyphenyl)ethylidene]carbonohydrazide dimethyl sulfoxide solvate

Abstract

The title dimethyl sulfoxide (DMSO) solvate, C17H18N4O3·C2H6OS, shows the disubstituted urea derivative to adopt an almost planar geometry (r.m.s. deviation for non-H atoms = 0.132 Å); the molecule has non-crystallographic twofold molecular symmetry. This conformation is stabilized by two intramolecular O—H...N hydrogen bonds. The components of the crystal are connected by N—H...O hydrogen bonds, whereby both amine H atoms are connected to a DMSO O atom, and C—H...O contacts involving the DMSO H and urea carbonyl atoms, forming a supramolecular chain along the c axis. The chains associate via C—H...π interactions.