title: 2,2'-Diamino-N,N'-(o-phenyl-ene)di-benz-amide.
abstract: In the structure of the title compound, C(20)H(18)N(4)O(2), the N-H and C=O bonds are trans to each other and the amide O atoms are syn to the ortho amino N atom in the benzoyl rings. The amide groups form dihedral angles of 8.4 (2) and 13.8 (2)° with their respective benzoyl rings, and dihedral angles of 51.85 (16) and 51.19 (17)° with the phenyl-enediamine ring. In the crystal, a centrosymmetric dimer is formed by inter-molecular N-H⋯O hydrogen bonds, resulting in an R(2) (2)(14) descriptor on a unitary level of graph-set analysis, and three intramolecular N-H⋯O bonds also occur.
authors.forename: Irvin
authors.initials: I
authors.lastname: Booysen
authors.forename: Thomas I A
authors.initials: TI
authors.lastname: Gerber
authors.forename: Eric
authors.initials: E
authors.lastname: Hosten
authors.forename: Peter
authors.initials: P
authors.lastname: Mayer