Trichloroacetic acid at 105 K

In the crystal structure of the title compound, Cl3CCOOH or C2HCl3O2, mol­ecules form centrosymmetric pairs leading to centrosymmetric dimers through strong O—H⋯O hydrogen bonds. In the absence of other strong intermolecular interactions, the Cl⋯O [3.029 (1) A] and Cl⋯Cl [3.612 (1) A] interactions presumably play an important role in the stabilization of the crystal structure.