ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE, cilt.68, 2012 (SCI-Expanded)
In the title compound, C12H11N3O2, the benzotriazole ring system is approximately planar [maximum deviation = 0.008 (1) angstrom] and its mean plane is oriented at a dihedral angle of 24.05 (4)degrees with respect to the furan ring. In the crystal, O-H center dot center dot center dot N hydrogen bonds link the molecules into chains along the ac diagonal. pi-pi stacking between the furan rings, between the triazole and benzene rings, and between the benzene rings [centroid-centroid distances = 3.724 (1), 3.786 (1) and 3.8623 (9) A] are also observed.