Crystal structure of the co-crystal salt 2-amino-6-bromo­pyridinium 2,3,5,6-tetra­fluoro­benzoate

The asymmetric unit of the co-crystal salt 2-amino-6-bromo­pyridinium 2,3,5,6-tetra­fluoro­benzoate, C(5)H(6)BrN(2) (+)·C(7)HF(4)O(2) (−), contains one pyridinium cation and one benzoate anion. In the crystal, the amino­pyridinium cationic unit forms two hydrogen bonds to the benzoate oxygen atoms in an R (2) (2)(8) motif. Two pyridinium benzoate units are hydrogen bonded through self-complementary hydrogen bonds between the second amine hydrogen and a carboxyl­ate O with a second R (2) (2)(8) motif to form a discrete hydrogen-bonded complex containing two 2-amino-6-bromo­pyridinium moieties and two 2,3,5,6-tetra­fluoro­benzoate moieties. The 2-amino-6-bromo­pyridinium moieties π-stack in a head-to-tail mode with a centroid–centroid separation of 3.7227 (12) Å and adjacent tetra­fluoro­benzoates also π-stack in a head-to-tail mode with a centroid–centroid separation of 3.6537 (13) Å.