Crystal structure of 4-hy-droxy-pyridin-1-ium 3,5-di-carb-oxy-benzoate.
The structure of the title salt, C5H6NO(+)·C9H5O6 (-), (I), shows that 4-hy-droxy-pyridine has abstracted an H atom from benzene-1,3,5-tri-carb-oxy-lic acid, yielding a pyridinium cation and carboxyl-ate anion. The two ions form an extensive three-dimensional hydrogen-bonded network throughout the crystal. The hydrogen bonds that comprise the core of the network are considered strong, with O-H⋯O and N-H⋯O donor-to-acceptor distances ranging from 2.533 (2) to 2.700 (2) Å. Packing is further enhanced by π-stacking of the cations and anions with like species [centroid-centroid distance = 3.6206 (13) Å].
Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556-5670, USA.
Selena L
SL
Staun
Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556-5670, USA.
Allen G
AG
Oliver
3,5-di­carb­oxy­benzoate; 4-hy­droxy­pyridin-1-ium; cocrystal; crystal structure; hydrogen bonding