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4,4'-(Phenyl-imino)dibenzaldehyde.

ABSTRACT: The asymmetric unit of the title compound, C(20)H(15)NO(2), contains one half-molecule with the central N atom and two C atoms of the benzene moiety lying on a twofold rotation axis. Weak C-H⋯O inter-actions join the mol-ecules together into an infinite three-dimensional network.

SUBMITTER: Wang YG

PROVIDER: S-EPMC2969979 | biostudies-literature |

REPOSITORIES: biostudies-literature

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4,4'-Imino-dipyridinium bis-(hydrogen phthalate).

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Project description:The imino C=N double bond in the title compound, C(14)H(10)N(2)O, exists in an E conformation, with the phenyl ring being twisted by 80.7?(1)° in one independent mol-ecule and by 81.4?(1)° in the other with respect to the plane of the indoline fused-ring system. The two independent mol-ecules are linked by N-H?O hydrogen bonds, forming a zigzag chain running along the a axis.

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Project description:The title compound, C(10)H(10)N(2) (2+)·C(10)H(8)O(4) (2-), has inversion centres located at the geometric centres of the 1,4-phenyl-enediacetate anion and 4,4'-bipyridinium cation. The anions and cations are connected by N-H?O hydrogen bonds, forming one-dimensional supra-molecular chains, which inter-act with each other via ?-? inter-actions [centroid-centroid distance = 3.938?(2)?Å], building a two-dimensional supra-molecular sheet.

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4-[(E)-Phenyl-imino-meth-yl]benzonitrile.

Project description:In the mol-ecule of the title compound, C(14)H(10)N(2), the two aromatic rings are oriented at a dihedral angle of 32.22 (6)°. In the crystal structure, inter-molecular C-H⋯N hydrogen bonds link the mol-ecules into centrosymmetric R(2) (2)(10) dimers. A weak π-π inter-action between the cyanobenzene rings, with a centroid-centroid distance of 3.8447 (3) Å, further stabilizes the crystal structure. There is also a C-H⋯π inter-action between the aniline ring and a CH group of the cyanobenzene ring.

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Project description:The title chiral photochromic Schiff base compound, C(21)H(19)N(3)O, was synthesized from (R)-1-phenyl-ethyl-amine and the salicylaldehyde of an azobenzene derivative. The mol-ecule corresponds to the phenol-imine tautomer, the C=N and N-C bond distances being 1.279 (3) and 1.477 (3) Å, respectively. An intra-molecular O-H⋯N hydrogen bond occurs. The diazenyl group adopts a trans form with an N=N distance of 1.243 (3) Å.

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Project description:The title compound, C(24)H(33)NO(2), exhibits an intra-molecular hydrogen bond between a phenol -OH group and the N atom. In the crystal, mol-ecules are connected by pairs of O-H?O hydrogen bonds.

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Project description:In the title compound, C(14)H(10)N(2)O(2), the dihedral angle between the indole and benzene rings is 61.63?(4)°. In the crystal structure, centrosymmetrically related mol-ecules are linked into dimers by N-H?O hydrogen bonds, generating rings of graph-set motif R(2) (2)(8). The dimers are further connected into a three-dimensional network by O-H?O and C-H?O hydrogen bonds.

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