(E)-3-Hydroxy-N′-(2-hydroxybenzylidene)-2-naphthohydrazide
نویسندگان
چکیده
The title compound, C(18)H(14)N(2)O(3), is an aroylhydrazone with an approximately planar structure [dihedral angle of 15.27 (13)° between the benzene ring and the naphthyl ring system], stabilized by intra-molecular N-H⋯O and O-H⋯N hydrogen bonds. Inter-molecular O-H⋯O hydrogen bonds with the keto group as acceptor lead to strands along [100]. In terms of graph-set analysis, the descriptor on the unitary level is C(1) (1)(6)S(6)S(6).
منابع مشابه
3-Hydroxy-N′-(5-hydroxy-2-nitrobenzylidene)-2-naphthohydrazide
The mol-ecule of the title compound, C(18)H(13)N(3)O(5), displays an E configuration with respect to the C=N double bond. The dihedral angle between the benzene ring and the naphthyl system is 1.1 (2)°. In the crystal structure, mol-ecules are linked through inter-molecular N-H⋯O and O-H⋯O hydrogen bonds, forming a three-dimensional network.
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The title compound, C(20)H(19)N(3)O(2), was obtained by the condensation of 4-(dimethyl-amino)benzaldehyde with 3-hydr-oxy-2-naphthohydrazide. The mol-ecule is approximately planar, with an intra-molecular N-H⋯O hydrogen bond involving the imino H atom and the hydr-oxy O atom. The dihedral angle between the benzene ring and the naphthyl mean plane is 2.72 (13)°. In the crystal structure, symmet...
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The title Schiff base, C(14)H(14)N(2)O(2), is close to being planar (r.m.s. deviation for the non-hydrogen atoms = 0.052 Å) and an intra-molecular N-H⋯O hydrogen bond generates an S(6) ring. In the crystal, the moleucles are linked by O-H⋯O hydrogen bonds, giving rise to helical chains propagating along the c axis of the tetra-gonal unit cell.
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In the title compound, C(14)H(10)Cl(2)N(2)O(3), the dihedral angle between the two benzene rings is 5.1 (2)°. The mol-ecule adopts an E configuration with respect to the C=N bond and an intra-molecular O-H⋯N inter-action is present. In the crystal structure, mol-ecules are linked through inter-molecular N-H⋯O and O-H⋯O hydrogen bonds.
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عنوان ژورنال:
دوره 66 شماره
صفحات -
تاریخ انتشار 2009