| Summary: | The asymmetric unit of the title compound, C5H7N2+·C2F3O2−, contains four independent 2-aminopyridinium cations and four independent trifluoroacetate anions. In the crystal structure, these ions are linked by N—H...O hydrogen bonds, forming four cation–anion pairs each containing an R22(8) ring motif. The ion pairs are linked into two independent chains along [100] by N—H...O hydrogen bonds. In addition, C—H...O and C—H...F hydrogen bonds and π...π interactions [centoid–centroid separation = 3.6007 (17) Å] are observed.
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