2,10,12-Trimethyl-12H-5,7-dioxa-6-thiadibenzo[a,d]cyclooctene 6-oxide
✍ Scribed by Dong, Su-Lan ;Xu, Bing ;Feng, Zhi-Qiang ;Wang, Jin-Tang
- Book ID
- 104490991
- Publisher
- International Union of Crystallography
- Year
- 2007
- Tongue
- English
- Weight
- 516 KB
- Volume
- 63
- Category
- Article
- ISSN
- 1600-5368
No coin nor oath required. For personal study only.
✦ Synopsis
In the two independent molecules of the title compound, C 16 H 16 O 3 S, the dihedral angles between the benzene rings are 79.06 (2) and 78.46 (2) . The SO 2 C 5 rings are not planar and have boat-chair conformations.
Related literature
For general background, see: Pastor et al. (1983); Allen et al. (1987); Cremer & Pople (1975).
📜 SIMILAR VOLUMES
Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.002 A Ê R factor = 0.035 wR factor = 0.095 Data-to-parameter ratio = 10.3 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
In the title compound, C 35 H 42 O 4 , the chromene ring is in a distorted half-chair conformation and the cyclohexadienone ring adopts a screw-boat conformation. Intramolecular O-HÁ Á ÁO hydrogen bonds involving the carbonyl and hydroxyl groups are observed.