Conformational and substituent effects in the 19F spectra of C7-C10 straight-chain chlorofluoroalkanes

被引：4

作者：

Brey, WS ^{[1
]}

West, J ^{[1
]}

机构：

[1] Univ Florida, Dept Chem, Gainesville, FL 32611 USA

来源：

MAGNETIC RESONANCE IN CHEMISTRY | 2004年 / 42卷 / 11期

关键词：

NMR; F-19; chlorofluoroalkanes; substituent chemical shift effects; spin-spin coupling; conformation;

D O I：

10.1002/mrc.1449

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

One- and two-dimensional fluorine NMR spectra of straight-chain chlorofluoroalkanes having 7-10 carbons were obtained and interpreted. Spectral assignments were based primarily on indirect spin-spin correlations. A scale of chlorine substituent effects was developed. The effects of asymmetric CFCI centers on chemical-shift differences in nearby CF2 groups were analyzed in terms of molecular conformational effects. Spin-spin coupling patterns of CF3 groups were elucidated. Copyright (C) 2004 John Wiley Sons, Ltd.

引用

页码：910 / 918

页数：9

共 16 条

[1] INFLUENCE OF SUBSTITUTION ON CH.CF AND CF.CF COUPLING CONSTANTS [J].