1,5-Dibromo-2,4-bis[(2-bromophenyl)ethynyl]benzene
✍ Scribed by Westmoreland, Ian ;Miyagi, Lowell ;Que, Emily L.
- Publisher
- International Union of Crystallography
- Year
- 2005
- Tongue
- English
- Weight
- 103 KB
- Volume
- 61
- Category
- Article
- ISSN
- 1600-5368
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📜 SIMILAR VOLUMES
Dimethoxy-2,3-dimethylbenzene was brominated under radical conditions to give the title compound, C 10 H 11 Br 3 O 4 . The bond lengths and angles are generally within the normal ranges. The crystal packing is stabilized by weak intermolecular C-HÁ Á ÁO and C-HÁ Á ÁBr hydrogen bonds.
In the title structure, C~21~H~16~BrClN~2~, the pyrazoline ring is approximately coplanar with the __N__-substituted phenyl ring. The dihedral angles formed by the pyrazoline ring with the 4-chlorophenyl and 4-bromophenyl rings are 78.82 and 10.9°, respectively.
The crystal structure of the title compound, C 23 H 28 Br 4 O 6 , confirms that it consists of two hexasubstituted aromatic units linked by a central methylene group. The molecule lies on a crystallographic twofold axis that passes through the methylene bridging atom. Examination of the extended str
In the title compound, C 18 H 17 BrO 4 , the dihedral angle between the benzene rings is 9.60 (16) . The crystal structure is stabilized by intermolecular C-HÁ Á ÁO interactions and BrÁ Á ÁO short contacts.
In the title compound, C 21 H 16 BrClN 2 , the pyrazolinyl ring is approximately perpendicular to the chlorophenyl ring, with a dihedral angle of 82.08 .