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9-(2-Hydro­xy-4,4-di­methyl-6-oxo­cyclo­hex-1-enyl)-3,3,7-tri­methyl-1,2,3,4-hexa­hydro-9H-xanthen-1-one

✍ Scribed by Li, Yu-Ling ;Wang, Xiang-Shan ;Shi, Da-Qing ;Tu, Shu-Jiang ;Zhang, Yong

Publisher
International Union of Crystallography
Year
2004
Tongue
English
Weight
147 KB
Volume
60
Category
Article
ISSN
1600-5368

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Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.005 A Ê Disorder in main residue R factor = 0.050 wR factor = 0.121 Data-to-parameter ratio = 12.8 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

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In the title compound, C 26 H 27 NO 4 , the central ring of the xanthene moiety is planar and the two outer rings are in halfboat conformations. The molecular packing in the crystal structure is stabilized by N-HÁ Á ÁO and C-HÁ Á ÁO hydrogen bonds in addition to van der Waals forces.