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2-Bromo-1-(4-methoxy-phen-yl)ethanone.

ABSTRACT: The title compound, C(9)H(9)BrO(2), prepared by the reaction of 4-methoxy-acetophenone and cupric bromide, , is approximately planar (r.m.s. deviation 0.0008 Å). In the crystal, weak inter-molecular aromatic C-H⋯O(carbon-yl) hydrogen-bonding inter-actions result in a one-dimensional chain structure.

SUBMITTER: Zhang J

PROVIDER: S-EPMC2969964 | biostudies-literature |

REPOSITORIES: biostudies-literature

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1-(5-Bromo-2-hydr-oxy-4-methoxy-phen-yl)ethanone.

Project description:In the title compound, C(9)H(9)BrO(3), the dihedral angle between the ethanone group and the aromatic ring is 3.6?(2)°. The mol-ecular conformation is consolidated by an intra-molecular O-H?O hydrogen bond. The crystal structure is stabilized by ?-? inter-actions between the benzene rings [centroid-centroid distance = 3.588?(2)?Å].

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Project description:In the title compound, C(8)H(6)BrNO(3), there are two mol-ecules, A and B, in the asymmetric unit. The nitro and ethanone groups lie close to the plane of the benzene ring and the bromine atom is twisted slightly: the dihedral angles between the mean planes of the nitro and ethanone groups and the benzene ring are 4.6?(4) (A) and 2.8?(3) (B), and 0.8?(8) (A) and 5.5?(8)° (B), respectively. An extensive array of weak C-H?O hydrogen bonds, ?-? ring stacking [centroid-centroid distances = 3.710?(5) and 3.677?(5)?Å] and short non-hydrogen Br?O and O?Br inter-molecular inter-actions [3.16?(6)and 3.06?(8)?Å] contribute to the crystal stability, forming a supermolecular three-dimensional network structure along 110. These inter-actions give rise to a variety of cyclic graph-set motifs and form inter-connected sheets in the three-dimensional structure.

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1-(4-Bromo-phen-yl)-2-(2-chloro-phen-oxy)ethanone.

Project description:In the title compound, C14H10BrClO2, a twofold halogenated derivative of phenyl-ated phenyl-oxyethanone, the least-squares planes defined by the C atoms of the aromatic rings subtend an angle of 71.31?(17)°. In the crystal, C-H?O contacts connect the mol-ecules into chains along the b-axis direction.

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Project description:In the title compound, C(10)H(5)Br(2)F(2)N(3)O, the mean planes of the benzene and triazole rings form a dihedral angle of 84.86 (2)°. In the crystal structure, weak inter-molecular C-H⋯O hydrogen bonds link mol-ecules into extended chains propagating along the c axis.

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rac-2,2'-(Thiane-2,6-di-yl)bis-[1-(4-bromo-phen-yl)ethanone].

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