title: 2,2',5,5'-Tetra-chloro-benzidine.
abstract: In the crystal structure of the title compound, C(12)H(8)Cl(4)N(2), mol-ecules lie on crystallographic twofold axes at the centre of the C-C bonds linking the benzene rings, such that the asymmetric unit consists of a half-mol-ecule. The individual mol-ecules participate in inter-molecular N-H⋯N, N-H⋯Cl, C-H⋯Cl and Cl⋯Cl [3.4503 (3) Å] inter-actions.
authors: Department of Chemistry and Biochemistry, University of Missouri-St Louis, St Louis, Missouri, USA.
authors: Onome
authors: O
authors: Ugono
authors: Marcel
authors: M
authors: Douglas
authors: Nigam P
authors: NP
authors: Rath
authors: Alicia M
authors: AM
authors: Beatty
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