title: 4-(piperidin-1-yl)pyridinium hexafluorophosphate at 150 K.
abstract: Structural characterization of the title compound, C(10)H(15)N(2)(+).PF(6)(-), shows it to be ionic, with the pyridine rather than the piperidine N atom being protonated and forming hydrogen bonds to the counter-ions, resulting in two independent ion pairs. A number of unusual features are noted, in particular the remarkably close inter-ring hydrogen contacts [1.97 (3)-2.00 (3) A] and the considerable differences in the pair of cations, in respect of the torsion angles within the piperidine ring involving the bonds to either side of the N atom.
authors: Department of Chemistry, LaTrobe University, Bundoora, Victoria 3086, Australia.
authors: Bruce D
authors: BD
authors: James
authors: Siti
authors: S
authors: Mutrofin
authors: Brian W
authors: BW
authors: Skelton
authors: Allan H
authors: AH
authors: White