title: N'-[(E)-3-Indol-3-ylmethyl-ene]isonicotino-hydrazide monohydrate.
abstract: Crystals of the title compound, C(15)H(12)N(4)O·H(2)O, were obtained from a condensation reaction of isonicotinylhydrazine and 3-indolylformaldehyde. The mol-ecule assumes an E configuration, with the isonicotinoylhydrazine and indole units located on the opposite sites of the C=N double bond. In the mol-ecular structure the pyridine ring is twisted with respect to the indole ring system, forming a dihedral angle of 44.72 (7)°. Extensive classical N-H⋯N, N-H⋯O, O-H⋯O and O-H⋯N hydrogen bonding and weak C-H⋯O inter-actions are present in the crystal structure.
authors.forename: Liang-You
authors.initials: LY
authors.lastname: Xia
authors.forename: Wen-Long
authors.initials: WL
authors.lastname: Wang
authors.forename: Shan-Heng
authors.initials: SH
authors.lastname: Wang
authors.forename: Yan-Lan
authors.initials: YL
authors.lastname: Huang
authors.forename: Shang
authors.initials: S
authors.lastname: Shan