Date Published: April 01, 2012
Publisher: International Union of Crystallography
Author(s): Hadi Kargar, Zahra Sharafi, Reza Kia, Safoora Ghelenji, Muhammad Nawaz Tahir.
In the title compound, C15H13NO4, the dihedral angle between the substituted benzene rings is 9.9 (8)°. Part of the molecule (the salicylaldimine segment) is disordered over two sets of sites, with a refined site-occupancy ratio of 0.550 (14):0.450 (14). Intramolecular O—H⋯N hydrogen bonds form S(6) ring motifs. In the crystal, pairs of O—H⋯O hydrogen bonds link molecules into centrosymmetric dimers with R22(8) ring motifs. The crystal packing also features C—H⋯π interactions.
For standard bond lengths, see: Allen et al. (1987 ▶). For hydrogen-bond motifs, see: Bernstein et al. (1995 ▶). For background to Schiff base ligands and their complexes, see, for example, Kargar et al. (2011 ▶, 2012 ▶); Kia et al. (2010 ▶).