1,1'-(p-Phenyl-enedimethyl-ene)dipyridinium bis-(hexa-fluoridophosphate)

Acta Crystallogr Sect E Struct Rep Online. 2010 Sep 30;66(Pt 10):o2653. doi: 10.1107/S1600536810037992.

Abstract

The title salt, C(18)H(18)N(2) (2+)·2PF(6) (-), exists as non-inter-acting cations and anions. In the cation, the pyridine and phenyl-ene rings are aligned at 62.9 (1)°; the pyridine ring lies on a special position of m site symmetry and the phenyl-ene ring on a special position of 2/m site symmetry. The angle at the methyl-ene C atom is 112.8 (1)°. The anion lies on a special position of m site symmetry; four F atoms lie on this mirror plane.