3,5,7-Trimethoxy-2-(4-methoxyphenyl)-4H-1-benzopyran-4-one

被引：3
|
作者：
Aree, Thammarat [1 ]
Sawasdee, Pattara
机构：
[1] Chulalongkorn Univ, Dept Chem, Fac Sci, Bangkok 10330, Thailand
来源：
ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE | 2009年 / 65卷
关键词：
D O I：
10.1107/S1600536809040938
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
In the title compound, C19H18O6, also known as 3,4',5,7-tetramethoxyflavone, the dihedral angle between the benzopyran-4-one group and the attached benzene ring is 11.23 (8)degrees. An intramolecular C-H center dot center dot center dot O hydrogen bond generates an S(6) ring motif. In the crystal, molecules are linked into a two-dimensional network parallel to (011) by intermolecular C-H center dot center dot center dot O hydrogen bonds, which generate R-4(4)(20), R-4(4)(12) and R-2(2)(14) ring motifs. Adjacent networks interact by pi-pi interactions between the pyran ring and its methoxyphenyl substituent [centroid-centroid distance = 3.5267 (8) angstrom].
引用
收藏
页码：O2706 / U382
页数：13
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