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3-aminocarbonylpyridinium difluoroacetate at 123 k

Bardin, J. and Florence, A.J. and Arlin, J.B. and Kennedy, A.R. and Wong, L.V. (2009) 3-aminocarbonylpyridinium difluoroacetate at 123 k. Acta Crystallographica Section E: Structure Reports, 65. O2896-U2160. ISSN 1600-5368

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Abstract

In the crystal of the title compound, C6H7N2O+·C2HF2O2-, the cation adopts a catemeric N-HO hydrogen-bonded chain motif involving the carboxamide group, with two further N-HO hydrogen bonds connecting the cations to adjacent difluoroacetate 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-HO and C-HF interactions consolidate the packing.