title: 3-Amino-carbonyl-pyridinium difluoro-acetate at 123 K.
abstract: In the crystal of the title compound, C(6)H(7)N(2)O(+)·C(2)HF(2)O(2) (-), the cation adopts a catemeric N-H⋯O hydrogen-bonded chain motif involving the carboxamide group, with two further N-H⋯O hydrogen bonds connecting the cations to adjacent difluoro-acetate anions via the carboxamide and pyridinium N atoms. The carboxamide group of the nicotinamidium ion is twisted by 32.3 (6)° from the pyridine ring plane. A number of C-H⋯O and C-H⋯F interactions consolidate the packing.
authors.forename: Julie
authors.initials: J
authors.lastname: Bardin
authors.forename: Alastair J
authors.initials: AJ
authors.lastname: Florence
authors.forename: Jean-Baptiste
authors.initials: JB
authors.lastname: Arlin
authors.forename: Alan R
authors.initials: AR
authors.lastname: Kennedy
authors.forename: Li Ven
authors.initials: LV
authors.lastname: Wong