The title compound, C 17 H 14 O 5 , a flavone, was isolated from the rhizomes of Kaempferia parviflora. There are two crystallographically independent molecules in the asymmetric unit. The molecular structure is stabilized by intramolecular O-HÁ Á ÁO and C-HÁ Á ÁO hydrogen bonds. C-HÁ Á ÁO intermole
5,7-Dimethoxy-2H-chromen-2-one
✍ Scribed by Ye, Yu-Yuan ;Fan, Jie-Ping
- Publisher
- International Union of Crystallography
- Year
- 2006
- Tongue
- English
- Weight
- 87 KB
- Volume
- 63
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
The molecular structure of the title compound, C 11 H 10 O 4 , contains two fused six-membered rings. All non-H atoms are constrained to be coplanar by symmetry, the molecule lying in a mirror plane.
📜 SIMILAR VOLUMES
The title compound, C 13 H 14 O 4 , known as 8-methyleugenitin, is a chromone isolated from the leaves of Mellaleuca cajuputi Powell. The chromone unit is essentially planar. The methyl and hydroxyl groups lie in the plane of the benzene ring while the methoxy substituent is perpendicular to it. An
The skeleton of the title compound, C 9 H 6 O 4 Á0.5H 2 O, with the water molecule located on a twofold rotation axis, consists of a coumarin that is composed of a benzene ring and a lactone ring. The hydroxyl groups, carbonyl group and water form intermolecular O-HÁ Á ÁO hydrogen bonds, which link
The title compound, C 17 H 14 O 4 ÁCHCl 3 , was isolated from the rhizomes of Kaempferia parviflora. The benzopyran-4-one ring system and the phenyl substituent are approximately coplanar. The crystal structure is stabilized bystacking interactions between the benzopyran-4-one ring system of inversi