Xue-Yue Jiang

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The title compound, C(14)H(11)N(3)O(3), adopts an E or trans configuration with respect to the C=N bond. In the mol-ecule there is an intra-molecular O-H⋯N hydrogen bond involving the hy-droxy substituent at the 2-positon of the naphthalene ring and the adjacent methyl-ene-amino N atom. The mol-ecule is roughly planar, the dihedral angle between the(More)
The title mol-ecule, C(14)H(10)N(4)O(6), crystallizes with one half-mol-ecule in the asymmetric unit; the mid-point of the N-N bond lies on an inversion centre. The nitro and amide groups are twisted with respect to the benzene ring, making dihedral angles of 14.6 (5) and 31.1 (5)°, respectively. In the crystal structure, mol-ecules are linked through N-H⋯O(More)
The title compound, C(15)H(9)ClN(2)O(2), adopts an E configuration about the C=N double bond. The mean plane of the isoindoline ring system [maximum deviation = 0.011 (2) Å] is inclined to the chloro-benzene ring by 22.62 (8)°. In the crystal, mol-ecules are connected by C-H⋯O hydrogen bonds, forming chains that propagate along [010].
The title compound, C(12)H(11)N(3)O(2), adopts an E or trans configuration with respect to the C=N bond. There is an intra-molecular O-H⋯N hydrogen bond involving the hydroxyl H atom and an N atom of the hydrazine group. In the crystal structure, mol-ecules are connected via N-H⋯O hydrogen bonds, forming a three-dimensional network.
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