Crystal structure of N'-[4-(dimethylamino)benzylidene] furan-2-carbohydrazide monohydrate.

The condensation of 2-furoic hydrazide and 4-dimethyl aminobenzaldehyde in ethanol yielded a yellow solid formulated as the title compound, C14 H15 N3 O2·H2O. The crystal packing is stabilized by intermolecular O(water)--H…O,N(carbohydrazide) and N--H…O(water) hydrogen bonds, which form a two-dimensional network along the bc plane. Additional C-- H…O interactions link the molecules into a three-dimensional network. The dihedral angle between the mean planes of the benzene and the furan ring is 34.47 (6)°. The carbohydrazide moiety, i.e., the C=N--N=C O fragment and the benzene ring are almost coplanar, with an angle of 6.75 (9)° between their mean planes. [ABSTRACT FROM AUTHOR]