(E)-Benzyl(4-{[1-(prop-2-en-1-yl)-1H-1,2,3-triazol-4-yl]methoxy}benzylidene)amine

The triazole ring of the title compound, C20H20N4O, is normal to the central benzene ring, making a dihedral angle of 90.0 (3)°, and forms a dihedral angle of 69.2 (3)° with the terminal phenyl ring. The dihedral angle between the phenyl and benzene rings is 88.2 (3)°. The atoms of the terminal propenyl group are disordered over two sets of sites, with a site-occupancy ratio of 0.663 (13):0.337 (13). In the crystal, C—H⋯N contacts lead to the formation of a layer structure extending parallel to (011). Two weak C—H⋯π interactions are also observed.

The triazole ring of the title compound, C 20 H 20 N 4 O, is normal to the central benzene ring, making a dihedral angle of 90.0 (3) , and forms a dihedral angle of 69.2 (3) with the terminal phenyl ring. The dihedral angle between the phenyl and benzene rings is 88.2 (3) . The atoms of the terminal propenyl group are disordered over two sets of sites, with a site-occupancy ratio of 0.663 (13):0.337 (13). In the crystal, C-HÁ Á ÁN contacts lead to the formation of a layer structure extending parallel to (011). Two weak C-HÁ Á Á interactions are also observed.

Comment
Schiff bases result from the condensation of primary amines with carbonyl compounds to give imines containing a C=N bond (Calligaris & Randaccio 1987). There is a continuing interest in the chemistry of Schiff bases and their complexes because of their uses as biologically active substances, liquid crystals, dyes, luminophores and polymer stabilizers (Dikusar & Kozlov 2006). Schiff bases are used as substrates in the preparation of a large number of bioactive and industrial compounds via ring closure, cycloaddition, replacement reactions, cyclization and enantioselective oxidation (Macho et al., 2004). 1,2,3-Triazoles are nitrogen heterocycles, that have a number of important industrial, agrochemical, and pharmaceutical uses (Yap & Weinreb 2006). Triazole derivatives also display a broad range of biological activity, showing potential applications as antitumor, antibacterial, antifungal and antiviral agents (Yu et al., 2006). Therefore, compound (I), which that contains both of these features, was synthesized and its X-ray structure is reported here.
In the title compound (I, Fig. 1 comparable to those reported for the similar compounds (Akkurt et al., 2013a,b).
In the crystal structure, intermolecular C-H···N contacts (Table 1; Figs. 2 & 3) connect the adjacent molecules, forming a layer structure extending parallel to the (011) plane. In addition, weak two C-H···π interactions (Table 1) contribute to the stabilization of the molecular packing.

Refinement
All H atoms were positioned geometrically and were refined using a riding model with U iso (H) = 1.2U eq (C). The atoms of the propenyl group are disordered over two positions with a site-occupancy ratio of 0.663 (13)    where P = (F o 2 + 2F c 2 )/3 (Δ/σ) max < 0.001 Δρ max = 0.16 e Å −3 Δρ min = −0.11 e Å −3 Special details Geometry. Bond distances, angles etc. have been calculated using the rounded fractional coordinates. All su's are estimated from the variances of the (full) variance-covariance matrix. The cell e.s.d.'s are taken into account in the estimation of distances, angles and torsion angles Refinement. Refinement on F 2 for ALL reflections except those flagged by the user for potential systematic errors. Weighted R-factors wR and all goodnesses 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 observed criterion of F 2 > σ(F 2 ) is used only for calculating -R-factor-obs 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.