6-(2-Hydroxyphenyl)-5,6-dihydrobenzimidazolo[1,2-c]quinazolin-12-ium bromide ethanol solvate

Abstract

In the title compound, C20H16N3O+·Br−·C2H6O, the phenol ring forms dihedral angles of 84.5 (1) and 89.3 (1)° with the benzimidazole system and the quinazoline benzene ring, respectively. The two N—H groups act as donors in hydrogen bonds with the bromide ion as acceptor, leading to infinite eight-membered chains along [100]. According to graph-set theory the descriptor on the binary level is C21(8). O—H...O and O—H...Br hydrogen bonds also occur.