期刊
SCIENCE CHINA-CHEMISTRY
卷 55, 期 10, 页码 2018-2026出版社
SCIENCE PRESS
DOI: 10.1007/s11426-012-4716-5
关键词
hydrogen bond; halogen acceptor; aromatic amide; X-ray crystallography
资金
- National Natural Science Foundation of China [21172042, 20974118]
- Ministry of Education of China [IR1117]
Intramolecular N-HaEuro broken vertical bar X (X = F, Cl, Br, and I) hydrogen bonding patterns of aromatic amides in the solid state are summarized. It is revealed that the key for the formation of this kind of weak intramolecular hydrogen bonding in X-ray crystal structures is to suppress the competition of strong intermolecular N-HaEuro broken vertical bar O-C hydrogen bonding of the amide unit. For amides with identical backbones, the bonding capacity of halogen atoms as hydrogen bonding acceptors is in the order of F > Cl > Br > I, which is in accordance with their electronegativity strength. Generally, the five-membered hydrogen bonding is easier to form than the six-membered one.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据