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

ABSTRACT: The title compound, C(17)H(15)BrO(2), adopts an E configuration. The dihedral angle between the two benzene rings is 10.09?(11)°. The enone plane makes dihedral angles of 12.05?(11) and 9.87?(11)°, respectively, with the bromo-phenyl and ethoxy-phenyl rings. The eth-oxy group is nearly coplanar with the attached benzene ring. In the crystal structure, the mol-ecules are linked by C-H?O hydrogen bonds, forming a zigzag ribbon-like structure along the b-axis direction.

SUBMITTER: Fun HK

PROVIDER: S-EPMC2961684 | biostudies-literature | 2008 Jun

REPOSITORIES: biostudies-literature

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

Fun Hoong-Kun HK Chantrapromma Suchada S Patil P S PS Dharmaprakash S M SM

Acta crystallographica. Section E, Structure reports online 20080628 Pt 7

The title compound, C(17)H(15)BrO(2), adopts an E configuration. The dihedral angle between the two benzene rings is 10.09 (11)°. The enone plane makes dihedral angles of 12.05 (11) and 9.87 (11)°, respectively, with the bromo-phenyl and ethoxy-phenyl rings. The eth-oxy group is nearly coplanar with the attached benzene ring. In the crystal structure, the mol-ecules are linked by C-H⋯O hydrogen bonds, forming a zigzag ribbon-like structure along the b-axis direction. ...[more]

PMID: 21202975

Similar Datasets

1-(4-Bromo-phen-yl)-3-(4-ethoxy-phen-yl)-prop-2-en-1-one.

Project description:The title compound, C(17)H(15)BrO(2), consists of two substituted benzene rings connected by a prop-2-en-1-one group. The mol-ecule is nearly planar and adopts an E configuration. The dihedral angle between the two benzene rings is 8.51?(19)°. The enone plane makes dihedral angles of 11.06?(19) and 7.69?(19)°, respectively, with the bromo-phenyl and ethoxy-phenyl rings. The mol-ecules are linked by C-H?O hydrogen bonds to form a zigzag ribbon-like structure along the b direction. The crystal structure is stabilized by weak intra- and inter-molecular C-H?O inter-actions.

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

Project description:The title compound, C(15)H(10)Br(2)O, is a chalcone with 2-bromo-phenyl and 4-bromo-phenyl rings bonded to opposite sides of a propenone group. The dihedral angle between mean planes of the benzene rings is 71.3 (1)°. The angle between the mean plane of the prop-2-ene-1-one group and the mean planes of the 2-bromo-phenyl and 4-bromo-phenyl rings are 64.2 (9) and 71.3 (1)°, respectively. A weak inter-molecular C-H⋯O inter-action and two weak C-Br⋯π inter-actions are observed, which contribute to the stability of the crystal packing.

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

Project description:In the title chalcone derivative, C(17)H(15)BrO, the dihedral angle between the two benzene rings is 48.13?(4)°. In the crystal, a short Br?Br contact of 3.5052?(10)?Å occurs.

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(2E)-3-(2-Bromo-phen-yl)-1-(5-bromo-thio-phen-2-yl)prop-2-en-1-one.

Project description:The asymmetric unit of the title compound, C13H8Br2OS, contains two mol-ecules, in which the dihedral angles between the thio-phene and benzene rings are 10.5?(3) and 33.2?(4)°. There are no significant directional inter-actions in the crystal.

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

Project description:In the title compound, C(15)H(10)BrClO, the dihedral angle between mean planes of the bromo- and chloro-substituted benzene rings is 46.2?(2)° compared to 45.20?(9)° in the structure with the Cl substituent in the meta position of the aromatic ring. The dihedral angles between the mean plane of the prop-2-ene-1-one group and the mean planes of the 4-bromo-phenyl and 3-chloro-phenyl rings are 28.7?(5) and 24.2?(4)°, respectively. In the crystal, weak inter-molecular C-H?? inter-actions occur.

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(E)-1-(4-Bromo-phen-yl)-3-(3,4,5-trimethoxy-phen-yl)prop-2-en-1-one.

Project description:In the title compound, C(18)H(17)BrO(4), the dihedral angle between the 4-bromo-phenyl and 3,4,5-trimethoxy-phenyl rings is 44.18?(6)°. In the crystal structure, the mol-ecules are linked by C-H?O and C-H?? inter-actions.

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

Project description:In the title compound, C(15)H(10)BrClO, the dihedral angle between the mean planes of the benzene rings in the ortho-bromo- and para-chloro-substituted rings is 70.5?(6)°. The dihedral angles between the mean plane of the prop-2-en-1-one group and the mean planes of the benzene rings in the 4-chloro-phenyl and 2-bromo-phenyl rings are 14.9?(3) and 63.3?(8)°, respectively. In the crystal, inversion dimers linked by pairs of weak C-H?O interactions are observed as well as aromatic ?-? stacking inter-actions.

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(E)-1-(4-Bromo-phen-yl)-3-(2,4,6-trimethoxy-phen-yl)prop-2-en-1-one.

Project description:The mol-ecule of the title chalcone derivative, C(18)H(17)BrO(4), is twisted, the dihedral angle between the 4-bromo-phenyl and 2,4,6-trimethoxy-phenyl rings being 39.17?(6)°. The three meth-oxy groups are oriented in two different conformations whereby two meth-oxy groups are coplanar, whereas the third is twisted with respect to the attached benzene ring [C-O-C-C torsion angles of -2.84?(18), -2.80?(18) and -9.31?(18)°]. Weak intra-molecular C-H?O inter-actions generate two S(5) and one S(6) ring motifs. In the crystal structure, mol-ecules are linked into supra-molecular sheets parallel to the bc plane by weak C-H?O inter-actions. These sheets are stacked along the a axis. The crystal structure is further stabilized by weak C-H?? inter-actions.

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

Project description:The structure of the title compound, C(15)H(10)BrClO, comprises two substituted benzene rings bridged by a prop-2-en-1-one group and exists in an E configuration about the C=N double bond. The dihedral angle formed between the 4-bromo-phenyl and 2-chloro-phenyl rings is 23.77 (18)°. In the crystal structure, the mol-ecules are linked by weak C-H⋯O inter-actions, forming a supra-molecular zigzag chain. Intramolecular C-H⋯Cl and C-H⋯O hydrogen bonds are also present.

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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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