Acta Cryst. (2007). E63, o4032 [ doi:10.1107/S1600536807043747 ]
Abstract: The title compound, C5H8O3, was prepared as a potentially chelating molecule bearing the conformationally rigid cyclobutane group. The cyclobutane ring is arranged perpendicular to the carboxyl group. In the polar crystal structure, each molecule exhibits four hydrogen-bonded contacts to neighbouring molecules. Instead of the formation of typical carboxylic acid dimers, an infinite hydrogen-bonded chain with alternating O-H and O=C-O-H units is observed.
Copyright © International Union of Crystallography