2,7-Dimethyl-4,5-bis(trimethylsilyl)octa-2,3,5,6-tetraene
✍ Scribed by Jones, Peter G. ;Bubenitschek, Peter ;Hopf, Henning ;Stamm, Reiner
- Publisher
- International Union of Crystallography
- Year
- 2003
- Tongue
- English
- Weight
- 254 KB
- Volume
- 59
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
Single-crystal X-ray study T = 178 K Mean '(C±C) = 0.003 A Ê R factor = 0.042 wR factor = 0.115 Data-to-parameter ratio = 24.9
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 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
Single-crystal X-ray study T = 130 K Mean '(C±C) = 0.003 A Ê Disorder in solvent or counterion R factor = 0.046 wR factor = 0.126 Data-to-parameter ratio = 11.9 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
Single-crystal X-ray study T = 180 K Mean '(C±C) = 0.003 A Ê Disorder in main residue R factor = 0.045 wR factor = 0.110 Data-to-parameter ratio = 15.3 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.