Acta Cryst. (2013). E69, o335
[ doi:10.1107/S1600536813003103 ]
Abstract: In the title perfluorinated hydroxyisobutyric acid derivative, C4H2F6O3, the molecule shows approximately Cs symmetry. The carboxy group is nearly coplanar with the C-OH moiety and the O=C-C-O(H) torsion angle is 5.5 (2)°. An intramolecular O-HO hydrogen bond occurs. In the crystal, O-HO hydrogen bonds connect the molecules into supramolecular chains along the a-axis direction.
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