(Z)-N-[3-(2-Methoxyphenyl)-4-phenyl-2,3-dihydrothiazol-2-ylidene]-2-methylbenzamide

In the title molecule, C24H20N2O2S, the thiazole and amide groups are essentially coplanar. The thiazole ring forms dihedral angles of 61.62 (4) and 26.75 (5)° with the benzene rings of the methoxyphenyl and methylphenyl groups, respectively, and 33.69 (6)° with the phenyl ring. The crystal packing is stabilized by intermolecular C—H⋯O hydrogen bonds, forming a three-dimensional network.


S2. Experimental
The title compound was prepared according to the method reported earlier (Saeed & Parvez 2006). Single crystals suitable for X-ray diffraction were obtained by slow evaporation of an ethanol solution. Full spectroscopic and physical characterization will be reported elsewhere.

S3. Refinement
Hydrogen atoms were located in difference syntheses, refined at idealized positions riding on the C (C-H = 0.95-0.98 Å) atoms with isotropic displacement parameters U iso (H) = 1.2U(C eq ) and 1.5(methyl-C). Methyl H atoms were refined on the basis of rigid groups allowed to rotate but not tip.  Molecular structure of title compound. Displacement ellipsoids are drawn at the 50% probability level.

Figure 2
Crystal packing viewed along [010] with intermolecular hydrogen bonding pattern indicated as dashed lines. H-atoms not involved in hydrogen bonding are omitted.

(Z)-N-[3-(2-Methoxyphenyl)-4-phenyl-2,3-dihydrothiazol-2-ylidene]-2-methylbenzamide
Crystal data C 24 H 20 N 2 O 2 S M r = 400.48 Monoclinic, P2 1 /n Hall symbol: -P 2yn a = 9.7826 (18) Special details Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. 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. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s 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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å 2 )
x y z U iso */U eq S1 0.63733 (