The title compound, C~34~H~32~N~4~O~2~, undergoes a reversible [2+2] photoreaction with 1-(2-benzoxazol-2-yl)-2-bis[4-(dimethylamino)phenyl]ethane (NBE). Through intermolecular head-to-tail [2+2] photocycloaddition of NBE, the title compound displays a centrosymmetric molecular structure in the crys
1,2-Dibenzoyl-3,4-bis(4-methoxyphenyl)cyclobutane
✍ Scribed by Steyl, Gideon ;Hill, Tania ;Roodt, Andreas
- Publisher
- International Union of Crystallography
- Year
- 2005
- Tongue
- English
- Weight
- 225 KB
- Volume
- 61
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
The title compound, C 32 H 28 O 4 , crystallizes with two conformers, and , in the asymmetric unit. In both conformers, the benzoyl and methoxyphenyl groups are in cis positions. The cyclobutane rings are puckered, with average absolute torsion angles of 10.8 (2) and 11.4 (1) for conformers and , respectively. The crystal packing is stabilized by weak intermolecular C-HÁ Á ÁO hydrogen bonds and benzeneinteractions.
📜 SIMILAR VOLUMES
In the title compound, C 17 H 16 O 3 , the dihedral angle between the benzene rings is 10.05 (9) . Intermolecular C-HÁ Á ÁO hydrogen bonds link the molecules to form chains along the b axis. The crystal structure is further stabilized by C-HÁ Á Á interactions.
Molecules of the title compound, C 30 H 22 Br 2 O 2 , lie across crystallographic inversion centres. The dihedral angle between the phenyl and bromobenzene rings is 23.88 (8) . Weak C-HÁ Á ÁO interactions link the molecules into ribbons along the a axis.
In the title compound, C 22 H 18 O 2 S, the two benzene rings are twisted away from the thiophene ring by 34.99 (9) and 41.57 (9) . C-HÁ Á ÁO and C-HÁ Á Á hydrogen bonds are observed in the crystal structure.