(2E)-1-(2-Bromophenyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one
نویسندگان
چکیده
In the chalcone title compound, C(18)H(17)BrO(4), the dihedral angle between the mean planes of the 2-bromo- and 3,4,5-trimethoxy-substituted benzene rings is 89.3 (1)°. The angles between the mean plane of the prop-2-en-1-one group and the 2-bromo-phenyl and 3,4,5-trimeth-oxy-phenyl ring planes are 59.7 (1) and 40.5 (8)°, respectively. While no classical hydrogen bonds are present, three weak inter-molecular C-H⋯O inter-actions and weak C-H⋯Br and C-H⋯Cg π-ring stacking inter-actions [C-H⋯Cg distance = 3.377 (2) Å] are observed, which contribute to the stability of crystal packing.
منابع مشابه
(2E)-1-(3-Bromophenyl)-3-(6-methoxy-2-naphthyl)prop-2-en-1-one
In the title compound, C(20)H(15)BrO(2), the prop-2-en-1-one fragment is substanti-ally twisted [C-C-C-O = 23.0 (11)°]. The dihedral angle between the benzene and naphthalene rings is 44.28 (13)°. The only possible directional inter-actions in the crystal are weak C-H⋯π contacts, which generate (001) sheets.
متن کامل(E)-1-[4-(Prop-2-yn-1-yloxy)phenyl]-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one
The mol-ecule of the title chalcone derivative, C(21)H(20)O(5), consists of two substituted aromatic rings bridged by a prop-2-en-1-one group. The dihedral angle between the two benzene rings is 28.7 (7)°. In the crystal, mol-ecules are linked into C(10) chains running along the a axis by inter-molecular C-H⋯O hydrogen bonds, and the chains are cross-linked via C-H⋯π inter-actions.
متن کامل(E)-1-(4-Methoxyphenyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one
The title compound, C(19)H(20)O(5), was synthesized by reaction of 4-meth-oxy-acetophenone and 3,4,5-trimeth-oxy-benzaldehyde. The aromatic rings form a dihedral angle of 36.39 (7)°. Two intramolecular C-H⋯O hydrogen bonds occur. The crystal packing features weak C-H⋯O inter-actions.
متن کامل(2E)-1-(2-Bromophenyl)-3-(4-bromophenyl)prop-2-en-1-one
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 ...
متن کامل(E)-1-(5-Iodothiophen-2-yl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one
In the title compound, C(16)H(15)IO(4)S, the dihedral angle between the thio-phene and benzene rings is 11.50 (2)°. The methoxy O atoms deviate by 0.0060 (2), -0.1319 (2) and 0.0426 (2) Å from the phenyl ring plane. The crystal packing features C-H⋯O hydrogen bonds, which link the molecules into C(11) chains propagating in [100xxx].
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عنوان ژورنال:
دوره 66 شماره
صفحات -
تاریخ انتشار 2010