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(5-Bromo-2-chloro-phen-yl)(4-ethoxy-phen-yl)methanone.

ABSTRACT: In the title mol-ecule, C(15)H(12)BrClO(2), the two benzene rings form a dihedral angle of 69.30 (3)°. In the crystal structure, weak inter-molecular C-H⋯O hydrogen bonds link mol-ecules into chains propagating along the b axis.

SUBMITTER: Shao H

PROVIDER: S-EPMC2971929 | biostudies-literature |

REPOSITORIES: biostudies-literature

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{2-[(3-Bromo-benzyl-idene)amino]-5-chloro-phen-yl}(phen-yl)methanone.

Project description:In the title compound, C(20)H(13)BrClNO, the azomethine double bond [C=N = 1.246?(4)?Å] adopts an E conformation. The bromo- and chlorophenyl rings are inclined to one another by 13.70?(11)°, and form dihedral angles of 76.68?(10) and 74.24?(7)°, respectively, with the phenyl ring. In the crystal, mol-ecules are linked by C-H?O hydrogen bonds to form double stranded chains propagating along the b-axis direction.

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(5-Bromo-2-hydroxy-phen-yl)(phen-yl)methanone.

Project description:In the title compound, C(13)H(9)BrO(2), the mol-ecular conformation is stabilized by an intra-molecular O-H?O hydrogen bond. In the crystal structure, weak inter-molecular C-H?O hydrogen-bonding inter-actions link the mol-ecules into chains along the c-axis direction.

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(5-Bromo-2-hydroxy-phen-yl)(phen-yl)methanone.

Project description:In the title compound, C(13)H(9)BrO(2), the dihedral angle between the aromatic ring planes is 53.6 (1)°. The crystal structure is stabilized by intra-molecular O-H⋯O and inter-molecular C-H⋯O hydrogen bonding and C-H⋯π inter-actions.

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{5-Chloro-2-[(4-chloro-benzyl-idene)-amino]-phen-yl}(phen-yl)methanone.

Project description:In the title compound, C(20)H(13)Cl(2)NO, the C=N bond adopts an E conformation. The chloro-substituted rings form a dihedral angle of 11.99?(9)° with each other and form dihedral angles of 74.95?(9) and 83.26?(10)° with the unsubstituted ring. In the crystal, mol-ecules are connected into dimers by pairs of weak C-H?O hydrogen bonds and the dimers are arranged in columns parallel to the a axis.

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(4-Bromo-phen-yl)(1H-indol-7-yl)methanone.

Project description:In the crystal, the mol-ecules of the title compound, C(15)H(10)BrNO, are connected into centrosymmetric dimers by pairs of N-H?O hydrogen bonds. The dihedral angle between the planes of indole ring system and benzene ring is 50.13?(5)°. The indole plane is significantly less twisted from the plane of the central C-C(=O)-C bridge than the benzene plane [dihedral angles = 15.51?(3) and 40.13?(7)°, respectively]. The bond angles within the benzene ring show an approximately additive effect of the influence of both substituents.

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(5-Bromo-2-methyl-phen-yl)(4-eth-oxy-phen-yl)methanone.

Project description:In the title compound, C(16)H(15)BrO(2), the dihedral angle between the benzene rings is 68.5?(2)°. In the crystal structure, mol-ecules are linked by weak C-H?O hydrogen bonds into chains parallel to the b axis.

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1-(5-Chloro-2,4-dihydroxy-phen-yl)-2-(4-ethoxy-phen-yl)ethanone.

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6-(4-Bromo-phen-yl)-2-eth-oxy-4-(4-ethoxy-phen-yl)nicotinonitrile.

Project description:The mol-ecule of the title nicotinonitrile derivative, C(22)H(19)BrN(2)O(2), is non-planar, the central pyridine ring making dihedral angles of 7.34?(14) and 43.56?(15)° with the 4-bromo-phenyl and 4-ethoxy-phenyl rings, respectively. The eth-oxy group of the 4-ethoxy-phenyl is slightly twisted from the attached benzene ring [C-O-C-C = 174.2?(3)°], whereas the eth-oxy group attached to the pyridine ring is in a (+)syn-clinal conformation [C-O-C-C = 83.0?(3)°]. A weak intra-molecular C-H?N inter-action generates an S(5) ring motif. In the crystal structure, the mol-ecules are linked by weak inter-molecular C-H?N inter-actions into screw chains along the b axis. These chains stacked along the a axis. ?-? inter-actions with centroid-centroid distances of 3.8724?(16) and 3.8727?(16)?Å are also observed.

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(2-Chloro-3,5-dinitro-phen-yl)(piperidin-1-yl)methanone.

Project description:In the title compound, C(12)H(12)ClN(3)O(5), the piperidine ring adopts a chair conformation. One of the nitro groups is almost coplanar with the aromatic ring [O-N-C-C = -1.4 (2)°], whereas the other one is significantly twisted out of the ring plane [O-N-C-C = 34.7 (2)°]. The crystal packing is stabilized by inter-molecular π-π stacking inter-actions with centroid-centroid distances of 3.579 (3) Å.

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(4-Bromo-phen-yl)(2,7-dimeth-oxy-1-naphth-yl)methanone.

Project description:In the title compound, C(19)H(15)BrO(3), the dihedral angle between the naphthalene ring system and the benzene ring is 72.02?(9)°. The bridging carbonyl C-C(=O)-C plane makes dihedral angles of 70.88?(10) and 1.87?(12)°, respectively, with the naphthalene ring system and the benzene ring. In the crystal, two types of weak inter-molecular C-H?O inter-actions and a short Br?C contact [3.345?(2)?Å] are observed.

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