Complex formation between cucurbit[n]urils and alkali, alkaline earth and ammonium ions in aqueous solution

被引：86

作者：

Buschmann, HJ ^{[1
]}

Cleve, E ^{[1
]}

Jansen, K ^{[1
]}

Wego, A ^{[1
]}

Schollmeyer, E ^{[1
]}

机构：

[1] Deutsch Text Forschungszentrum Nord W EV, D-47798 Krefeld, Germany

来源：

JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY | 2001年 / 40卷 / 1-2期

关键词：

cucurbiturils; complex formation; alkali ions; alkaline earth ions;

D O I：

10.1023/A:1011159119554

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The complex formation between cucurbit[5]uril, decamethylcucurbit[5]uril and cucurbit[6]uril and alkali, alkaline earth and ammonium cations is examined. The solubility of these ligands is rather small in aqueous solution. In the presence of salts the solubility normally increases due to the formation of complexes. The total concentration of the ligands can be easily measured from the total organic carbon content of the salt solutions saturated with the ligand. From these results it is possible to calculate the stability constants of the complexes formed even without the knowledge of the exact solubility of the ligand.

引用

页码：117 / 120

页数：4

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