Acta Crystallographica Section E (Jul 2010)
4,4′-[(2,7-Dibromofluorene-9,9-diyl)dimethylene]dipyridinium bis(perchlorate)
Abstract
In the crystal of the title compound, C25H20Br2N22+·2ClO4−, intermolecular N—H...O and C—H...O hydrogen bonds, along with C—H...π interactions, stabilize the crystal structure.