title: 3,3,3-Trifluoro-2-hydr-oxy-2-(trifluoro-meth-yl)propionic acid.
abstract: In the title perfluorinated hy-droxy-isobutyric acid derivative, C4H2F6O3, the mol-ecule shows approximately Cs symmetry. The carb-oxy group is nearly coplanar with the C-OH moiety and the O=C-C-O(H) torsion angle is 5.5 (2)°. An intra-molecular O-H⋯O hydrogen bond occurs. In the crystal, O-H⋯O hydrogen bonds connect the mol-ecules into supra-molecular chains along the a-axis direction.
authors.affiliation: Nelson Mandela Metropolitan University, Summerstrand Campus, Department of Chemistry, University Way, Summerstrand, PO Box 77000, Port Elizabeth, 6031, South Africa.
authors.forename: Thomas
authors.initials: T
authors.lastname: Gerber
authors.forename: Richard
authors.initials: R
authors.lastname: Betz