5,12-Dihydroxy-2,6,7,13-tetramethoxyflavone
✍ Scribed by Meng, Zhao-Ling ;Qi, Yuan-Ying ;Liu, Ren-Min ;Sun, Ai-Ling ;Wang, Da-Qi
- Publisher
- International Union of Crystallography
- Year
- 2006
- Tongue
- English
- Weight
- 217 KB
- Volume
- 62
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
Single-crystal X-ray study T = 298 K Mean (C-C) = 0.004 A R factor = 0.046 wR factor = 0.145 Data-to-parameter ratio = 12.3 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
📜 SIMILAR VOLUMES
Single-crystal X-ray study T = 298 K Mean (C-C) = 0.006 A R factor = 0.064 wR factor = 0.201 Data-to-parameter ratio = 12.3 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
In the title compound, C 30 H 32 O 9 Á1.5H 2 O, the cyclooctadiene eight-membered ring adopts a twisted boat-chair conformation. O-HÁ Á ÁO hydrogen bonding helps to stabilize the crystal structure.
In the title compound, C 16 H 18 N 2 O 4 , the cyclohexene ring adopts a half-chair conformation. In the solid state, intermolecular O-HÁ Á ÁN hydrogen bonds link the molecules into dimers. The crystal packing is further stabilized by N-HÁ Á ÁO and O-HÁ Á ÁO hydrogen bonds and weak C-HÁ Á ÁO interac
In the crystal structure of the title compound, C 19 H 20 O 6 , the dihedral angle between the two aromatic planes is 31.8 (1) . Intermolecular C-HÁ Á ÁO hydrogen bonds serve to stabilize the structure.