Single-crystal X-ray study T = 170 K Mean '(C±C) = 0.004 A Ê Disorder in main residue R factor = 0.047 wR factor = 0.139 Data-to-parameter ratio = 14.3 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
2,2,5,5-Tetramethyl-1,6-diphenyl-7,8-diselenabicyclo[4.1.1]octane 7,8-dioxide
✍ Scribed by Ding, Meng-Xin ;Ma, Bing ;Zhu, Ran ;Shan, Hai-Tao ;Shao, Ji ;Sheng, Xin
- Publisher
- International Union of Crystallography
- Year
- 2004
- Tongue
- English
- Weight
- 165 KB
- Volume
- 60
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
In the title compound, C 22 H 26 O 2 Se 2 , there are two selenoxide groups, and the two SeÐO bonds point in opposite directions. The Se 2 C 2 ring is not planar, having a dihedral angle between the two triangular C 2 Se planes of 152.9 (3) .
📜 SIMILAR VOLUMES
Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.006 A Ê R factor = 0.056 wR factor = 0.132 Data-to-parameter ratio = 12.9 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
The title compound, C 18 H 20 ClNO 2 , has been synthesized by the reaction of 4-chlorobenzaldehyde, Meldrum's acid, dimedone and CH 3 NH 3 Cl(NaOAc) in ethanol under microwave irradiation. The pyridone ring adopts a screw-boat conformation and the cyclohexenone ring an envelope conformation.