(E)-N′-(4-Methoxybenzylidene)-2-m-tolylacetohydrazide

In the title molecule, C17H18N2O2, the benzene rings form a dihedral angle of 83.0 (7)°. In the crystal, N—H⋯O hydrogen bonds, in an R 2 2(8) graph-set motif, link molecules into centrocymmetric dimers, and weak C—H⋯π interactions further link these dimers into columns in [100].

In the title molecule, C 17 H 18 N 2 O 2 , the benzene rings form a dihedral angle of 83.0 (7) . In the crystal, N-HÁ Á ÁO hydrogen bonds, in an R 2 2 (8) graph-set motif, link molecules into centrocymmetric dimers, and weak C-HÁ Á Á interactions further link these dimers into columns in [100].
ASP thanks UOM for research facilities. JPJ acknowledges the NSF-MRI program (grant No. CHE1039027) for funds to purchase the X-ray diffractometer.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: CV5364).
The single crystal was grown from ethyl acetate by slow evaporation method and yield of the compound was 94% (m.p.:

Refinement
All H atoms were placed in their calculated positions and then refined using the riding model with Atom-H lengths of 0.93Å (CH), 0.97Å (CH 2 ), 0.96Å (CH 3 ) or 0.86Å (NH). Isotropic displacement parameters for these atoms were set to 1.19-1.21 (CH, CH 2 ), 1.49 (CH 3 ) or 1.21 (NH) times U eq of the parent atom.

Computing details
Data collection: CrysAlis PRO (Oxford Diffraction, 2010); cell refinement: CrysAlis PRO (Oxford Diffraction, 2010); data reduction: CrysAlis RED (Oxford Diffraction, 2010); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008    Special details Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes. Refinement. Refinement of F 2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F 2 , conventional R-factors R are based on F, with F set to zero for negative F 2 . The threshold expression of F 2 > σ(F 2 ) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F 2 are statistically about twice as large as those based on F, and R-factors based on ALL data will be even larger.