title: Perhydro-benzimidazole-2-thione.
abstract: The studied crystal of the title compound, C(7)H(12)N(2)S, is a racemic mixture of two isomers, viz. S,S and R,R. The two isomers share the same position on a mirror plane in the space group P2(1)/m; thus all atoms except one are disordered between two positions in a 1:1 ratio. Inter-molecular N-H⋯S hydrogen bonds link the mol-ecules into chains propagating in the [010] direction.
authors.affiliation: Department of Biomedicine, Zhongshan Torch Polytechnic, Zhongshan 528436, Guangdong Province, People's Republic of China.
authors.forename: Yingchun
authors.initials: Y
authors.lastname: Liu
authors.forename: Xiaoyu
authors.initials: X
authors.lastname: Li