title: 5-({3-[(5-Amino-1,3,4-thia-diazol-2-yl)sulfanylmeth-yl]benz-yl}sulfan-yl)-1,3,4-thia-diazol-2-amine.
abstract: In the title compound, C(12)H(12)N(6)S(4), the two terminal thia-diazole rings are twisted with respect to the central benzene ring, making dihedral angles of 54.28 (4) and 76.56 (3)°. The dihedral angle between the two thia-diazole rings is 27.77 (4)°. Inter-molecular N-H⋯N hydrogen bonds stabilize the crystal packing, linking the mol-ecules into a tape along the b axis.
authors.affiliation: Department of Chemistry, Chungnam National University, Daejeon 305-764,  Republic of Korea.
authors.forename: Sung Kwon
authors.initials: SK
authors.lastname: Kang
authors.forename: Nam Sook
authors.initials: NS
authors.lastname: Cho
authors.forename: Siyoung
authors.initials: S
authors.lastname: Jang