13C NMR spectroscopic evaluation of the affinity of carbonyl compounds for carbon dioxide under supercritical conditions

被引：30
|
作者：
Tsukahara, T
Kayaki, Y
Ikariya, T
Ikeda, Y
机构：
[1] Tokyo Inst Technol, Grad Sch Sci & Engn, Meguro Ku, Tokyo 1528552, Japan
[2] Tokyo Inst Technol, Frontier Collaborat Res Ctr, Meguro Ku, Tokyo 1528552, Japan
[3] Japan Sci & Technol Agcy, PRESTO, Meguro Ku, Tokyo 1528552, Japan
[4] Tokyo Inst Technol, Nucl Reactors Res Lab, Meguro Ku, Tokyo 1528550, Japan
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2004年 / 43卷 / 28期
关键词：
carbon dioxide; carbonyl compounds; NMR spectroscopy; solvolysis; supercritical fluids;
D O I：
10.1002/anie.200454190
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
CO2-philicity: The 13C NMR chemical shift (δc) of supercritical CO2 containing carbonyl compounds moves to lower fields with increasing CO2 density in parallel with the δc value of neat ScCO2. The difference in the magnitude of these shifts (Δδc) is attributed to the strength of solute-CO2 interactions (see picture, R = CH3 or CF3, L = DMSO) and allows determination of the CO2-philicity of solute molecules in ScCO2.
引用
收藏
页码：3719 / 3722
页数：4
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