9-O-Butylberberrubinium bromide

Abstract

In the title compound, C23H24NO4+·Br−, the butyl chain is disordered between two conformations; the occupancies refined to 0.735 (7) and 0.265 (7). The dihedral angle between the naphthalene ring system and the phenyl ring is 11.6 (2)°. In the crystal structure, the cations are packed via π–π interactions into stacks propagating in the [010] direction. Weak intermolecular C—H...O and C—H...Br hydrogen bonds contribute further to the crystal packing stability.