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(E)-N-(2,4-Dimeth-oxy-benzyl-idene)-4-ethoxyaniline.

ABSTRACT: In the title compound, C(17)H(19)NO(3), the mol-ecule has an E configuration with respect to the C=N bond and the dihedral angle between the aromatic rings is 56.07 (5)°. In the crystal, inversion dimers linked by pairs of C-H⋯O hydrogen bonds occur. The dimers are linked by weak C-H⋯π inter-actions, forming a three-dimensional network.

SUBMITTER: Fejfarova K

PROVIDER: S-EPMC3008983 | biostudies-literature |

REPOSITORIES: biostudies-literature

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(E)-N-(2,4-Dichloro-benzyl-idene)-2,5-dimeth-oxy-aniline.

Project description:In the title compound, C15H13Cl2NO2, which was obtained by a condensation reaction of 2,5-dimeth-oxy-aniline and 2,4-dichloro-benzaldehyde, the dihedral angle between the benzene rings is 51.94?(2)°. The 2,5-dimeth-oxy-phenyl and 2,4-dichloro-phenyl groups are attached to the ends of the N=C group in an E conformation. Intra-molecular C-H?Cl and C-H?N contacts are observed. In the crystal, mol-ecules are linked by C-H?O hydrogen bonds, forming chains parallel to the b axis.

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Project description:The crystal structure of the title Schiff base compound, C(16)H(16)N(2)O(3), is characterized by chains of mol-ecules linked by inter-molecular N-H?O hydrogen bonds running along the c axis. Further stabilization is provided by weak C-H?O contacts. The dihedral angle between the aromatic rings is 38.31?(7)°.

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Project description:In the title compound, C(10)H(13)N(3)O(3), the 3,4-dimeth-oxy-benzyl-idene and hydrazinecarboxamide groups are oriented at a dihedral angle of 53.82?(6)° and an intra-molecular N-H?N hydrogen bond generates an S(5) ring motif. In the crystal, mol-ecules are linked by N-H?O hydrogen bonds into sheets propagating in (-201), which feature R(1) (2)(5), R(2) (2)(8) and R(2) (4)(14) loops.

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3,4-Dimeth-oxy-N-(4-nitro-benzyl-idene)-aniline.

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Project description:The title compound, C(19)H(17)NO(2), represents a trans isomer with respect to the C=N bond. The dihedral angle between the planes of the naphthyl ring system and the benzene ring is 71.70 (3)°. In the crystal, weak C-H⋯O hydrogen bonding is present.

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(E)-2-(3,4-Dimeth-oxy-benzyl-idene)-5,6-dimeth-oxy-2,3-dihydro-1H-inden-1-one.

Project description:In the title compound, C(20)H(20)O(5), the 2,3-dihydro-1H-indene ring system is essentially planar [maximum deviation = 0.010?(1)?Å] and is inclined at an angle of 4.09?(4)° with respect to the phenyl ring. The C=C bond has an E configuration. In the crystal, the mol-ecules are linked into chains propagating in [102] via inter-molecular C-H?O hydrogen bonds. The crystal structure is further consolidated by C-H?? inter-actions.

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