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 , re
c-2,t-4-Bis(2-benzoxazol-2-yl)-r-1,t-3-bis[4-(dimethylamino)phenyl]cyclobutane
✍ Scribed by Li, Feng-Yu ;Wang, Shu-Tao ;Zhuang, Jun-Peng ;Jiang, Lei ;Song, Yan-Lin
- Publisher
- International Union of Crystallography
- Year
- 2007
- Tongue
- English
- Weight
- 213 KB
- Volume
- 63
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
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 crystalline state. The cyclobutane ring has an exactly planar conformation and is nearly square.
📜 SIMILAR VOLUMES
In the title compound, C 19 H 19 Cl 2 N 3 O 2 , the piperidine ring adopts a distorted boat conformation. In the solid state, the molecules exist as O-HÁ Á ÁN-hydrogen-bonded centrosymmetric dimers.
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.