Abstract
In the title compound, C19H19NO4, the dihedral angle between the mean planes through the benzene rings is 82.18 (7)°. The C=N double bond is trans-configured. The molecules are linked into centrosymmetric dimers via pairs of O—H⋯N hydrogen bonds with the motif R 2 2(6). The crystal packing also features C—H⋯O interactions. The methyl group attached to one of the aromatic rings is disordered over two almost equally occupied positions [occpancy ratio = 0.51 (4):0.49 (4)].
Highlights
In the title compound, C19H19NO4, the dihedral angle between the mean planes through the benzene rings is 82.18 (7)
The molecules are linked into centrosymmetric dimers via pairs of O—H N
The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry
Summary
Chennai 600 025, India, and cDepartment of Physics, Presidency College (Autonomous), Chennai 600 005, India. R factor = 0.045; wR factor = 0.132; data-to-parameter ratio = 20.7. C19H19NO4, the dihedral angle between the mean planes through the benzene rings is 82.18 (7). The. C N double bond is trans-configured. The molecules are linked into centrosymmetric dimers via pairs of O—H N hydrogen bonds with the motif R22(6). The crystal packing features C—H O interactions. The methyl group attached to one of the aromatic rings is disordered over two almost occupied positions [occpancy ratio = 0.51 (4):0.49 (4)]
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