Research Article: 4-Benzyl-4-ethyl­morpholin-1-ium hexa­fluoro­phosphate

Date Published: March 01, 2012

Publisher: International Union of Crystallography

Author(s): Fang Yang, Hongjun Zang, Bowen Cheng, Xianlin Xu, Yuanlin Ren.


The asymmetric unit of the title compound, C13H20NO+·PF6−, contains two cations, one complete anion and two half hexa­fluoro­phosphate anions having crystallographically imposed twofold rotation symmetry. In the cations, the morpholine rings are in a chair conformation. In the crystal, ions are linked by weak C—H⋯F hydrogen bonds into a three-dimensional network.

Partial Text

For background to the properties and applications of quaternary ammonium-based compounds as room temperature ionic liquids (RTILs), see: Abedin et al. (2004 ▶, 2005 ▶); Kim et al. (2006 ▶). For ring puckering parameters, see: Cremer & Pople (1975 ▶) For bond-length data, see: Allen et al. (1987 ▶).