title: 5-(2-Methyl-phen-yl)-1,3,4-thia-diazol-2-amine.
abstract: The asymmetric unit of the title compound, C(9)H(9)N(3)S, contains two crystallographically independent mol-ecules, in which the thia-diazole and tolyl rings are oriented at dihedral angles of 32.25 (3) and 74.50 (3)°. An intra-molecular C-H⋯S inter-action results in the formation of a five-membered ring. In the crystal structure, inter-molecular N-H⋯N hydrogen bonds link the mol-ecules into chains along the a axis. A π-π contact between the thia-diazole rings [centroid-centroid distance = 3.910 (3) Å] may further stabilize the structure. There is also a weak C-H⋯π inter-action.
authors.affiliation: Department of Applied Chemistry, College of Science, Nanjing University of Technology, No. 5 Xinmofan Road, Nanjing 210009, People's Republic of China.
authors.forename: Yao
authors.initials: Y
authors.lastname: Wang
authors.forename: Xiang-Jun
authors.initials: XJ
authors.lastname: Kong
authors.forename: Rong
authors.initials: R
authors.lastname: Wan
authors.forename: Feng
authors.initials: F
authors.lastname: Han
authors.forename: Peng
authors.initials: P
authors.lastname: Wang