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3-(3,4-Dichloro-phen-yl)-1-(2-naphth-yl)prop-2-en-1-one.

ABSTRACT: The asymmetric unit of the title compound, C(19)H(12)Cl(2)O, contains four independent mol-ecules, which can be divided into two pairs of mol-ecules with close values of the C-C(=O)-C=C torsion angles in each pair, viz. 165.12 (16) and 165.68 (15)° in one pair, and -164.66 (15) and -164.81 (15)° in the other pair. The crystal packing exhibits short inter-molecular Cl⋯Cl contacts of 3.362 (1) Å.

SUBMITTER: Lu ZK

PROVIDER: S-EPMC2969996 | biostudies-literature |

REPOSITORIES: biostudies-literature

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(E)-3-(4-Bromo-phen-yl)-1-(3,4-dichloro-phen-yl)prop-2-en-1-one.

Project description:The mol-ecule of the title compound, C(15)H(9)BrCl(2)O, is shown to be the E isomer, with the 3,4-dichloro-benzoyl and p-bromo-phenyl substituents in trans positions with respect to the chalcone olefin bond. The mol-ecule is non-planar, the two aromatic rings forming a dihedral angle of 49.58 (1)°.

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Project description:The mol-ecule of the title compound, C(16)H(12)Cl(2)O, adopts an E configuration. The dihedral angle between the two benzene rings is 42.09 (5)°. In the crystal structure, mol-ecules are linked into a three-dimensional framework by weak C-H⋯O inter-actions and by C-H⋯π inter-actions involving the methyl-phenyl ring.

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(E)-3-(4-Chloro-phen-yl)-1-(1-naphth-yl)prop-2-en-1-one.

Project description:In the title compound, C(19)H(13)ClO, the benzene ring and the naphthalene system, are twisted by 12.3 (3) and 36.1 (2)°, respectively, and in opposite directions with respect to the central propenone bridge. The bond-angle pattern within the benzene ring is influence by both substituents; these influences are almost additive. In the crystal, the molecules are linked by C-H⋯O and C-H⋯Cl inter-actions.

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(2E)-1-(4-Amino-phen-yl)-3-(2,4-dichloro-phen-yl)prop-2-en-1-one.

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Project description:In the title compound, C(16)H(12)Cl(2)O(2), the dichloro-phenyl and methoxy-phenyl groups are linked by a prop-2-en-1-one group. The C=C double bond is trans configured. The mol-ecule is not planar, as can be seen from the dihedral angle of 6.21?(7)° between the planes of the two rings. The crystal structure can be described by two types of crossed layers which are parallel to (110) and (10).

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(E)-3-(2-Chloro-phen-yl)-1-(2,4-dichloro-phen-yl)prop-2-en-1-one.

Project description:In the title chalcone derivative, C(15)H(9)Cl(3)O, the dihedral angle between the 2-chloro-phenyl and 2,4-dichloro-phenyl rings is 41.79 (14)°. Weak C-H⋯O and C-H⋯Cl intra-molecular inter-actions involving the enone unit generate S(5) ring motifs. In the crystal structure, the mol-ecules are arranged in a head-to-tail manner along the a axis. These chains are stacked along the b axis.

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