Crystal structure of 2-[(2E)-2-methyl-3-phenyl­prop-2-en-1-yl­idene]-N-phenyl­hydrazinecarboxamide

The title compound, C(17)H(17)N(3)O, crystallizes with two independent mol­ecules in the asymmetric unit. The semicarbazone moieties of these independent mol­ecules (I and II) are essentially planar [maximum deviation of 0.042 (1) Å in mol­ecule I and 0.041 (1) Å in mol­ecule II], with the terminal phenyl rings twisted away from the mean plane of the semicarbazone moiety, making dihedral angles of 60.26 (8) and 28.76 (9)° in mol­ecule I and 31.07 (9) and 35.45 (8)° in mol­ecule II. The mol­ecules both exhibit an E configuration with respect to the C=C and azomethine C=N bonds. In the crystal, two classical N—H⋯O hydrogen-bonding inter­actions are present between the two mol­ecules, forming a centrosymmetric dimer, while a weak C—H⋯O non-classical hydrogen-bonding inter­action, with a donor–acceptor distance of 3.476 (2) Å, inter­connects two neighbouring centrosymmetric dimers to form a cage-like structure. These cage structures are inter­connected by weak C—H⋯π inter­actions with an H⋯π distance of 2.790 Å, forming supra­molecular chains along the c-axis direction.