title: 4-Amino-3-(4-pyrid-yl)-1,2,4-triazole-5(4H)-thione.
abstract: In the title mol-ecule, C(7)H(7)N(5)S, the pyridyl and triazole rings form a dihedral angle of 20.07 (6)°. Inter-molecular N-H⋯N hydrogen bonds link the mol-ecules into chains extended in the direction [10]. Further stability is provided by π⋯π stacking inter-actions, indicated by short distances between the centroids of triazole rings [3.480 (5) Å] and pyridyl rings [3.574 (5) Å] of neighbouring mol-ecules.
authors.affiliation: State Key Laboratory for the Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China.
authors.forename: Fang
authors.initials: F
authors.lastname: Zou
authors.forename: Wei-Min
authors.initials: WM
authors.lastname: Xuan
authors.forename: Xue-Ming
authors.initials: XM
authors.lastname: Fang
authors.forename: Hui
authors.initials: H
authors.lastname: Zhang