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Acta Cryst. (2014). E70, o519
[ doi:10.1107/S1600536814007211 ]

3,4-Di­fluoro-2-hy­droxy­benzoic acid

B. Ravi Kiran, B. S. Palakshamurthy, G. R. Vijayakumar and H. S. Bharath

Abstract: In the title compound, C7H4F2O3, an intra­molecular O-H...O hydrogen bond is observed. In the crystal, inversion dimers linked by pairs of O-H...O hydrogen bonds generate R22(8) ring motifs. These dimers are linked by C-H...O and C-H...F hydrogen bonds, forming sheets lying parallel to (30-1). The sheets are linked by aromatic [pi]-[pi] stacking inter­actions [inter-centroid distance = 3.7817 (9) Å], forming a three-dimensional structure.


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