(2,7-Dimethoxynaphthalene-1,8-diyl)bis(4-fluorobenzoyl)dimethanone
نویسندگان
چکیده
The title compound, C(26)H(18)F(2)O(4), is a naphthalene derivative in which the two aroyl groups at the 1- and 8-positions (peri positions) are anti to each other. There is an appreciable difference in the dihedral angles between the naphthalene ring system and the two benzene rings [66.88 (7)° and 88.09 (6)°]. In the crystal, weak C-H⋯O inter-actions involving one of the carbonyl groups and an aromatic C-H group ortho to the F atom seem to stabilize the packing of the mol-ecules.
منابع مشابه
Bis(4-bromobenzoyl)(2,7-dimethoxynaphthalene-1,8-diyl)dimethanone
In the title compound, C(26)H(18)Br(2)O(4), the two 4-bromo-benzoyl groups at the 1- and 8-positions of the naphthalene ring system are anti to each other. The dihedral angle between the two benzene rings is 50.92 (14)°. The dihedral angles between the two benzene rings and the naphthalene ring system are 70.18 (11) and 74.98 (12)°. A weak inter-molecular C-H⋯O hydrogen bond exists between the ...
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The mol-ecule of the title compound, C26H18F2O8S2, lies across a crystallographic twofold rotation axis. The benzene rings of the 4-fluorobenzoyl groups make dihedral angles of 78.93 (12)° with the naphthalene ring system. An intra-molecular C-H⋯π inter-action occurs. In the crystal, a number of C-H⋯O inter-actions link the mol-ecules, forming a three-dimensional structure.
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In the crystal of the title compound, C(25)H(20)Br(2)N(2) (2+)·2ClO(4) (-), inter-molecular N-H⋯O and C-H⋯O hydrogen bonds, along with C-H⋯π inter-actions, stabilize the crystal structure.
متن کامل1,8-Dibenzoyl-2,7-dimethoxynaphthalene
The mol-ecule of the title compound, C(26)H(20)O(4), is located on a twofold rotation axis. The two benzoyl groups are situated in an anti orientation. The dihedral angle between the mean planes of the phenyl ring and the naphthalene ring system is 80.25 (6)°. The phenyl and carbonyl groups in each benzoyl group are almost coplanar. The mol-ecular packing is stabilized by weak C-H⋯O hydrogen bo...
متن کاملrac-2,2′-(Thiane-2,6-diyl)bis[1-(4-bromophenyl)ethanone]
In the title compound, C(21)H(20)Br(2)O(2)S, prepared by the reaction of 1,9-bis-(4-bromo-phen-yl)nona-2,7-diene-1,9-dione with sodium sulfide nona-hydrate in acetonitrile, the six-membered thio-pyran ring has a chair conformation while the H atoms ortho to the S atom adopt a cis configuration. The dihedral angle between the two benzene rings is 2.59 (8)°.
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