Date Published: July 01, 2011
Publisher: International Union of Crystallography
Author(s): Dayang Hazwani Abang Ishak, Hairul Anuar Tajuddin, Zanariah Abdullah, Siti Nadiah Abd Halim, Edward R. T. Tiekink.
In the title compound, C10H9N3O3, there is a small twist between the benzene and triazole rings [dihedral angle = 6.32 (7)°]; the carboxylic acid residue is almost coplanar with the benzene ring to which it is attached [O—C—C—C torsion angle = 1.49 (19)°]. The main deviation from coplanarity of the non-H atoms is found for the hydroxy group which is almost perpendicular to the remaining atoms [N—C—C—O torsion angle = −75.46 (16)°]. In the crystal, the presence of O—H⋯O (between carboxyl groups) and O—H⋯N (between the hydroxy group and the triazole ring) hydrogen bonds leads to supramolecular chains along . The chains are connected into sheets via C—H⋯O(hydroxy) interactions.
For background to the fluorescence potential, see: McCaroll & Wandruzska (1997 ▶). For synthetic protocols, see: Rostovtsev et al. (2002 ▶); Ryu & Zhao (2005 ▶); Himo et al. (2005 ▶). For additional geometric analysis, see: Spek (2009 ▶).