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3-(2-Hydroxy-benzyl-ideneamino)benzonitrile.

ABSTRACT: In the title mol-ecule, C(14)H(10)N(2)O, an intra-molecular O-H?N hydrogen bond contributes to the essential coplanarity of the two benzene rings, which form a dihedral angle of 6.04?(18)°.

SUBMITTER: Xu HJ

PROVIDER: S-EPMC2960747 | biostudies-literature | 2008 Feb

REPOSITORIES: biostudies-literature

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3-(2-Hydroxy-benzyl-ideneamino)benzonitrile.

Xu Hai-Jun HJ Gong Xing-Xuan XX Wang Han H

Acta crystallographica. Section E, Structure reports online 20080229 Pt 3

In the title mol-ecule, C(14)H(10)N(2)O, an intra-molecular O-H⋯N hydrogen bond contributes to the essential coplanarity of the two benzene rings, which form a dihedral angle of 6.04 (18)°. ...[more]

PMID: 21201969

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2-(2-Hydroxy-benzyl-ideneamino)benzonitrile.

Project description:The mol-ecule of the title compound, C(14)H(10)N(2)O, displays a trans configuration with respect to the C=N double bond. The mol-ecule is roughly planar; the two aromatic rings make a dihedral angle of 9.3?(3)°. Such a planar conformation is induced by the strong intra-molecular O-H?N hydrogen bond between the imine and hydroxyl groups.

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3-[4-(Dimethyl-amino)benzyl-ideneamino]benzonitrile.

Project description:The mol-ecule of the title Schiff base, C(16)H(15)N(3), is non-planar and displays a trans configuration with respect to the C=N double bond. The two benzene rings make a dihedral angle of 49.24 (3)°.

| S-EPMC2977646 | biostudies-literature

(E)-4-[4-(Dimethyl-amino)benzyl-ideneamino]benzonitrile.

Project description:The mol-ecule of the title compound, C(16)H(15)N(3), displays a trans configuration with respect to the C=N double bond. The mol-ecule is not planar, the dihedral angle between the benzene rings being 57.83 (9)°. The crystal packing is stabilized only by van der Waals inter-actions.

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(E)-2-(2,4-Dihydroxy-benzyl-ideneamino)benzonitrile.

Project description:The mol-ecule of the title compound, C(14)H(10)N(2)O(2), adopts the phenol-imine tautomeric form. The dihedral angle between the planes of the two benzene rings is 13.84?(13)°. A strong intra-molecular O-H?N hydrogen-bonding inter-action stabilizes the mol-ecular conformation. In the crystal structure, centrosymmetrically related mol-ecules are linked into dimers by inter-molecular C-H?O and O-H?N hydrogen bonds.

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4-(2-Hydroxy-benzyl-idene-amino)-benzonitrile.

Project description:The mol-ecule of the title compound, C(14)H(10)N(2)O, is nearly planar. There is a strong intra-molecular O-H?N hydrogen bond between the imine and hydr-oxy groups. The configuration with respect to the C=N double bond is anti (1E).

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(E)-2-[(5-Bromo-2-hydroxy-benzyl-idene)amino]benzonitrile.

Project description:In the mol-ecule of the title compound, C(14)H(9)BrN(2)O, the dihedral angle between the aromatic rings is 1.09?(4)°. Intra-molecular O-H?N hydrogen bonding results in the formation of a planar (r.m.s. deviation = 0.0140?Å) six-membered ring. In the crystal structure, inter-molecular C-H?N inter-actions link the mol-ecules into chains.

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Hexaaqua-zinc(II) bis-[4-(2-hydroxy-benzyl-ideneamino)benzene-sulfonate].

Project description:In the title compound, [Zn(H(2)O)(6)](C(13)H(10)NO(4)S)(2), a distorted ZnO(6) octa-hedron results from the coordination by the six water mol-ecules. Only three of the water molecules are crystallographically unique, as the Zn atom lies on an inversion center. The Zn-O bond lengths are in the range 2.054 (4)-2.073 (4) Å. A network of hydrogen bonds helps to establish the crystal packing.

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Hexaaqua-cobalt(II) bis-[4-(2-hydroxy-benzyl-ideneamino)-benzene-sulfonate].

Project description:In the cation of the title compound, [Co(H(2)O)(6)](C(13)H(10)NO(4)S)(2), the Co atom lies on a centre of symmetry and its coordination geometry is octahedral. The crystal structure is stabilized by water-anion O-H⋯O hydrogen bonds. An intra-molecular O-H⋯N hydrogen bond occurs in the anion.

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(E)-2-(4-Diethyl-amino-2-hydroxy-benzyl-idene-amino)benzonitrile.

Project description:The mol-ecule of the title compound, C(18)H(19)N(3)O, displays a trans configuration with respect to the C=N double bond. The dihedral angle between the planes of the two benzene rings is 2.62?(11)°. A strong intra-molecular O-H?N hydrogen bond stabilizes the mol-ecular conformation.

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4-{[3-(4-Hydroxy-benzyl-ideneamino)-2,2-dimethyl-propyl]iminiomethyl}phenolate dihydrate.

Project description:The asymmetric unit of the title compound, C(19)H(22)N(2)O(2)·2H(2)O, comprises a zwitterionic form of the Schiff base compound and two water mol-ecules of crystallization. Inter-molecular N-H⋯O, C-H⋯O and O-H⋯N hydrogen bonds involving one of the water mol-ecules in the asymmetric unit generate seven- and eight-membered rings, with R(2) (1)(7) and R(2) (2)(8) ring motifs, respectively. The dihedral angle beween the two aromatic rings is 86.5 (2)°. The imino and iminium groups are coplanar with the benzene rings to which they are attached, making dihedral angles (N-C-C-C) of -179.3 (5) and -179.2 (4)°, respectively. Validation software indicates the higher symmetry space group Pnma for this structure. However, this process ignores H atoms and the zwitterionic configuration of the main mol-ecule breaks the higher symmetry. Solution in Pna2(1) provides a chemically sensible zwitterionic compound with improved residuals. In the crystal structure, mol-ecules are linked together through inter-molecular O-H⋯O, O-H⋯N, N-H⋯O and C-H⋯O inter-actions, forming a three-dimensional network. The crystal structure is further stabilized by inter-molecular C-H⋯π inter-actions.

| S-EPMC2977751 | biostudies-literature

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