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Acta Cryst. (2011). E67, o2666-o2667  [ doi:10.1107/S1600536811036737 ]

2,2'-[1,5-Bis(4-aminophenyl)-1,5-dihydrobenzo[1,2-d;4,5-d']diimidazole-2,6-diyl]diphenol

A. Blagus and B. Kaitner

Abstract: The title molecule, C32H24N6O2, has a crystallographic inversion centre in the middle of the benzodiimidazole core. It exists as the enol-imine tautomeric form and exhibits a strong intramolecular O-H...N hydrogen bond. The dihedral angles between the planes of the 2-hydroxyphenyl and 4-aminophenyl substituents and the plane of the benzodiimidazole unit [12.69 (8) and 84.71 (8)°, respectively] differ significantly due to steric reasons. In the crystal, molecules are linked by C-H...[pi] interactions, forming a two-dimensional network.

Online 17 September 2011


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