Complexation behaviour of p-tert-butylcalix[4]arene and p-tert-butylcalix[6]arene towards acetone

被引：21
|
作者：
Benevelli, F
Kolodziejski, W
Wozniak, K
Klinowski, J
机构：
[1] Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England
[2] Med Univ Warsaw, Dept Inorgan & Analyt Chem, PL-02097 Warsaw, Poland
[3] Univ Warsaw, Dept Chem, PL-02093 Warsaw, Poland
来源：
PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2001年 / 3卷 / 09期
关键词：
D O I：
10.1039/b100894n
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：
Novel 1:1 complexes of acetone with p-tert-butylcalix[4]arene and p-tert-butylcalix[6]arene were prepared and characterized by TGA, DSC, PXRD and C-13 and H-2 solid-state NMR. The behaviour of both molecules towards acetone is very similar, with the same orientation of the guest, and the same activation energy for the rotation of the C-D bond of acetone about its threefold axis. This is interpreted in terms of the pinched-cone conformation of p-tert-bultylcalix[6]arene in the complex, which can be viewed as two edge-sharing p-tert-bultylcalix[4]arene molecules in the cone conformation.
引用
收藏
页码：1762 / 1768
页数：7
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