Glidewell Christopher, Low John N, Skakle Janet M S, Wardell James L
School of Chemistry, University of St Andrews, Fife KY16 9ST, Scotland.
Acta Crystallogr C. 2004 May;60(Pt 5):o361-3. doi: 10.1107/S0108270104007036. Epub 2004 Apr 30.
The title compound, C(13)H(9)NO(5), crystallizes in space group P-1, with Z' = 3. The molecules are linked by O-H...O hydrogen bonds [H...O = 1.79-1.81 A, O...O = 2.625 (3)-2.648 (3) A and O-H...O = 172-176 degrees ] into two types of R(2)(2)(8) dimer, only one of which is centrosymmetric. An extensive series of soft hydrogen bonds, of C-H...O and C-H...pi(arene) types, links the dimers into a three-dimensional framework.