(E)-3-(2,4-Dichlorophenyl)-1-(2-thienyl)prop-2-en-1-one
نویسندگان
چکیده
In the title chalcone derivative, C(13)H(8)Cl(2)OS, the prop-2-en-1-one unit and the thio-phene and 2,4-dichloro-phenyl rings are each essentially planar. The inter-planar angle between the thio-phene and 2,4-dichloro-phenyl rings is 19.87 (6)°. Weak intra-molecular C-H⋯O and C-H⋯Cl inter-actions involving the prop-2-en-1-one unit generate an S(5)S(5) ring motif. In the crystal structure, mol-ecules are linked into head-to-tail zigzag chains along the a axis and adjacent chains are cross-linked. These cross-linked chains are arranged into sheets parallel to the ab plane. The crystal structure is stabilized by weak C-H⋯O, C-H⋯Cl and C-H⋯π inter-actions. A π-π inter-action was also observed with a centroid-centroid distance of 3.6845 (6) Å.
منابع مشابه
1-(2,4-Dichlorophenyl)-3-(4-methylphenyl)prop-2-en-1-one
The mol-ecule of the title compound, C(16)H(12)Cl(2)O, adopts an E configuration. The dihedral angle between the two benzene rings is 42.09 (5)°. In the crystal structure, mol-ecules are linked into a three-dimensional framework by weak C-H⋯O inter-actions and by C-H⋯π inter-actions involving the methyl-phenyl ring.
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The title compound, C(15)H(11)Cl(2)NO, is approximately planar (r.m.s. deviation = 0.062 Å) and contains a single C=C double bond in a trans (E) configuration. The crystal packing is stabilized by intermolecular N-H⋯N and N-H⋯O inter-molecular hydrogen bonding.
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In the title chalcone derivative, C(15)H(9)Cl(3)O, the dihedral angle between the 2-chloro-phenyl and 2,4-dichloro-phenyl rings is 41.79 (14)°. Weak C-H⋯O and C-H⋯Cl intra-molecular inter-actions involving the enone unit generate S(5) ring motifs. In the crystal structure, the mol-ecules are arranged in a head-to-tail manner along the a axis. These chains are stacked along the b axis.
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In the title mol-ecule, C(25)H(18)Cl(2)N(2)O(2), the dihedral angles between the pyrazole ring and its N- and C-bonded benzene rings are 8.28 (11) and 40.89 (10)°, respectively. The dihedral angle between the benzene rings is 39.03 (11)°. The title mol-ecule exists in a trans conformation with respect to the acyclic C=C bond. In the crystal, mol-ecules are linked into inversion dimers by pairs ...
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In the title salt, C21H21Cl2N2O2(+)·NO3(-), the imidazole ring makes dihedral angles of 43.39 (14) and 10.9 (2)° with the 4-methyl-phenyl and 2,4-dichloro-phenyl rings, respectively. The mol-ecule adopts a Z conformation about the C=C double bond, which links the imidazole ring to the 4-methyl-phen-oxy unit via an eth-oxy chain. In the crystal, cations and anions are linked into chains by N-H⋯O...
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