title: 1,1'-(p-Phenyl-enedimethyl-ene)dipyridinium bis-(hexa-fluoridophosphate).
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.
authors.affiliation: Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors.forename: Munirah Sufiyah
authors.initials: MS
authors.lastname: Abdul Rahim
authors.forename: Yatimah
authors.initials: Y
authors.lastname: Alias
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng