Molecular structures and π-π interactions of some flavonoids and biflavonoids

被引：32

作者：

Jiang, RW

Ye, WC

Woo, KY

Du, J

Che, CT

But, PPH

Mak, TCW

机构：

[1] Chinese Univ Hong Kong, Inst Chinese Med, Hong Kong, Hong Kong, Peoples R China

[2] Chinese Univ Hong Kong, Sch Chinese Med, Hong Kong, Hong Kong, Peoples R China

[3] China Pharmaceut Univ, Dept Phytochem, Nanjing 210009, Peoples R China

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2002年 / 642卷 / 1-3期

关键词：

cupressuflavone; neochamaejasmin A; flavonoid; biflavonoid; pi-pi interaction;

D O I：

10.1016/S0022-2860(02)00390-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The molecular structures of two flavones, wogonin (1) and mikanin (2), and two biflavonoids, cupressuflavone (3) and neochamaejasmin A (4), were determined by single-crystal X-ray analysis. The intermolecular pi-pi interactions in 1-4 and the flavanones alpinetin (5) and naringenin (6) were investigated. Compounds 1-4 feature offset face-to-face intermolecular pi-pi interactions with centroid-centroid distances ranging from 3.70 to 3.81 Angstrom and displacement angles ranging from 2.7 to 9.9degrees. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：77 / 84

页数：8

共 34 条

[31] The predictive value of the antioxidant capacity of structurally related flavonoids using the Trolox equivalent antioxidant capacity (TEAC) assay [J].