(E)-1,1'-Bis[(E)-But-2-enyl]-3,3'-(Propane-1,3-diyl)bis-(1H-Benzimidazol-3-ium) Dibromide Monohydrate

Abstract

The title compound, C25H30N4 2+·2Br -·H2O, was synthesized from 1,1′-propyl- enedibenzimidazole and (E)-1-bromo-but-2-ene in dimethyl-formamide solution. The two benzimidazole ring systems are essentially planar, with maximum deviations of 0.011 (4) and 0.023 (3) Å. The dihedral angle between these two ring systems is 25.87 (15)°. The crystal structure is stabilized by inter-molecular O - H⋯Br and C - H⋯Br hydrogen-bonding inter-actions. Atmospheric water was incorporated into the crystal structure.