(E)-1-(2-Thienyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one1
نویسندگان
چکیده
The mol-ecule of the title heteroaryl chalcone, C(16)H(16)O(4)S, which consists of substituted thio-phene and benzene rings bridged by the prop-2-en-1-one group, is slightly twisted. The dihedral angle between the thio-phene and 3,4,5-trimethoxy-phenyl rings is 12.18 (4)°. The three meth-oxy groups have two different conformations; two meth-oxy groups are coplanar [C-O-C-C torsion angles = -1.38 (12) and 0.47 (12)°] whereas the third is (-)-synclinal with the benzene ring. In the crystal structure, adjacent mol-ecules are linked in a face-to-side manner into chains along the c axis by weak C-H⋯O(enone) inter-actions. These chains are stacked along the b axis by weak C-H⋯O(meth-oxy) inter-actions.
منابع مشابه
(E)-1-(4-Bromophenyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one1
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⋯π inter-actions.
متن کامل(Z)-3-(9-Anthryl)-1-(2-thienyl)prop-2-en-1-one1
There are two crystallographically independent mol-ecules in the asymmetric unit of the title heteroaryl chalcone, C(21)H(14)OS: the dihedral angle between the thio-phene and anthracene rings is 75.07 (17)° in one mol-ecule and 76.32 (17)° in the other. The crystal structure is consolidated by short C⋯O [3.348 (5)-3.394 (5) Å], C⋯S [3.607 (5)-3.666 (5) Å] and S⋯O [2.926 (3) Å] contacts, as well...
متن کاملA second orthorhombic polymorph of (Z)-3-(9-anthryl)-1-(2-thienyl)prop-2-en-1-one1
The title heteroaryl chalcone, C(21)H(14)OS, is a second ortho-rhom-bic polymorph which crystallizes in the space group P2(1)2(1)2(1). The structure was previously reported [Fun et al. (2009 ▶). Acta Cryst. E65, o2168-o2169] in the space group Pna2(1). The bond distances and angles are similar in both structures. In contrast, the overall crystal packing is different from that in the first ortho...
متن کامل1-(Adamantan-1-yl)-3-(4-methoxyphenyl)prop-2-en-1-one1
The title mol-ecule, C(20)H(24)O(2), is a chalconoid derivative in which the keto-enone group is slightly distorted from planarity; the O=C-C=C torsion angle is 12.24 (13)°.
متن کامل(2E)-1-(2-Bromophenyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one
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 ...
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عنوان ژورنال:
دوره 65 شماره
صفحات -
تاریخ انتشار 2009