title: cis-2,5-Bis(2-fluoro-5-meth-oxy-pheneth-yl)pyrrolidinium formate.
abstract: In the title compound, C(22)H(28)F(2)NO(2) (+)·CHO(2) (-), there are three independent pyrrolidinium formate salt mol-ecules. In each cation, the central pyrrolidinium ring is not planar and the 2,5-disubstituted phenyl-ethyl groups are in equatorial positions. In the crystal, the ions are linked into a pair of chains parallel to the c axis by N-H⋯O hydrogen bonds between the NH group of the pyrrolidinium ring and the formate O atoms.
authors.forename: Purushothama Rao
authors.initials: PR
authors.lastname: Ponugoti
authors.forename: Narsimha Reddy
authors.initials: NR
authors.lastname: Penthala
authors.forename: Linda P
authors.initials: LP
authors.lastname: Dwoskin
authors.forename: Sean
authors.initials: S
authors.lastname: Parkin
authors.forename: Peter A
authors.initials: PA
authors.lastname: Crooks