Enhanced cage effects in supercritical fluid solvents. The behavior of diffusive and geminate caged-pairs in supercritical carbon dioxide

被引：14
|
作者：
Tanko, JM [1 ]
Pacut, R [1 ]
机构：
[1] Virginia Polytech Inst & State Univ, Dept Chem, Blacksburg, VA 24061 USA
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2001年 / 123卷 / 24期
关键词：
D O I：
10.1021/ja002800f
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The behavior of geminate and diffusive radical caged-pairs arising from the photolysis of dicumyl ketone in conventional and supercritical carbon dioxide (SC-CO2) solvents has been examined. The results suggest that locally enhanced solvent density about a solute (solvent/solute clustering) can lead to an enhanced cage effect near the critical pressure in supercritical fluid solvents. This enhanced cage effect is similar in magnitude for both diffusive and geminate caged-pairs.
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收藏
页码：5703 / 5709
页数：7
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