title: 4-Benzyl-3-[(1-oxidoethylidene)amino]-1-phenyl-4,5-dihydro-1H-1,2,4-triazol-5-iminium.
abstract: The title compound, C(17)H(17)N(5)O, exists in the zwitterionic form with the amide group deprotonated. The mean planes of the 1,2,4-triazole and N-phenyl rings form a dihedral angle of 39.14 (8)°. The N atom of the amino group adopts a trigonal configuration. Inter-moleculat C-H⋯O and C-H⋯N hydrogen bonds occur. In the crystal, mol-ecules are linked into a two-dimensional network parallel to (10[Formula: see text]) by N-H⋯O and N-H⋯N hydrogen bonds. C-H⋯N contacts are also observed.
authors.forename: Victor M
authors.initials: VM
authors.lastname: Chernyshev
authors.forename: Anna G
authors.initials: AG
authors.lastname: Mazharova
authors.forename: Victor B
authors.initials: VB
authors.lastname: Rybakov