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Published on: June 21, 2017
Crystal structure of (Z)-3-{2-[(Z)-11H-indeno[1,2-b]quinoxalin-11-yl-idene]hydrazin-yl}-N-phenyl-but-2-enamide
Ghada A Eldeken1, Fatma A El-Samahy1, Ehab M Zayed1
1Department of Green Chemistry, Chemical Industries Research Institute, National Research Centre, 33 El-Buhouth St., Dokki, Giza, PO 12622, Egypt.
Abstract:
In the title compound, (Z)-3-{2-[(Z)-11H-indeno-[1,2-b]quinoxalin-11-yl-idene]hydrazin-yl}-N-phenyl-but-2-enamide monohydrate, C25H19N5O·H2O, the configurations around the C=N and C=C double bonds adjacent to the hydrazinyl moiety are both Z. Except for the phenyl group, the mol-ecule is almost planar, promoted by the three-centre intra-molecular Nhydrazin-yl-H⋯(Ocarbon-yl, Nquinoxaline) hydrogen bond. The water mol-ecule participates in three hydrogen bonds, as donor towards Ocarbon-yl (within the asymmetric unit) and the other Nquinoxaline (via an inversion operator) and as acceptor from the amide N-H group (via a b-glide operator). The hydrogen bonds combine to form a layer structure parallel to the ab plane.
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