1-Benzyl-2-phenyl-1H-benzimidazole-4,4′-(cyclo-hexane-1,1-di-yl) diphenol (1/1)

Abstract

The asymmetric unit of the title co-crystal, C 20H 16N 2·C 18H 20O 2, contains one mol-ecule of 4,4′-(cyclo-hexane-1,1-di-yl)diphenol (in which the cyclo-hexane ring adopts a chair conformation) and one mol-ecule of 1-benzyl-2-phenyl-1H-benzimidazole, which are paired through an O - H⋯N hydrogen bond. These pairs are further linked by inter-molecular O - H⋯O hydrogen bonds into chains along [010]. Weak inter-molecular C - H⋯O and C - H⋯π inter-actions further consolidate the crystal packing. The dihedral angles between the pendant phenyl rings and the benzimidazole ring are 86.9 (2) and 43.1 (2)°. © Ge et al. 2011.