The title compound, C 29 H 24 Br 2 , has crystallographic twofold rotation symmetry. The Br atom in the 2 position is disordered with the methyl group in the 6 position. The biphenyl bridge bond distance and the torsion angle between the rings are in good agreement with similar previously reported s
(S)-(–)-5,5′-Bis(diphenylphosphino)-2,2,2′,2′-tetramethyl-4,4′-bi-1,3-benzodioxole
✍ Scribed by Cheng, Jiang ;Sun, Yan-Hui ;Pan, Yi ;Xu, Jian-Hua
- Publisher
- International Union of Crystallography
- Year
- 2004
- Tongue
- English
- Weight
- 174 KB
- Volume
- 60
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
Single-crystal X-ray study T = 298 K Mean '(C±C) = 0.004 A Ê R factor = 0.034 wR factor = 0.081 Data-to-parameter ratio = 8.5
For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
📜 SIMILAR VOLUMES
The title compound, C 24 H 18 , possesses a twofold rotation axis, which bisects the 1,2-dimethylbenzene ring. In the crystal structure, all three benzene rings are essentially coplanar, the angle between the central and terminal rings being 3.8 (1) .
Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.005 A Ê R factor = 0.045 wR factor = 0.140 Data-to-parameter ratio = 13.8 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.