ANION COMPLEXATION BY MESO-OCTAMETHYLCALIX[4]PYRROLE IN AQUEOUS SOLUTION

被引：1

作者：

Buschmann, Hans-Juergen ^{[1
]}

Schollmeyer, Eckhard ^{[1
]}

Cleve, Ernst ^{[2
]}

Mutihac, Lucia ^{[3
]}

机构：

[1] Deutsch Textilforschungszentrum Nord W eV, D-47798 Krefeld, Germany

[2] Univ Appl Sci, Krefeld, Germany

[3] Univ Bucharest, Dept Analyt Chem, Bucharest, Romania

来源：

ANALYTICAL LETTERS | 2011年 / 44卷 / 16期

关键词：

Anions; Aqueous solution; Complex formation; Meso-octamethylcalix[4]pyrrole; Solubility; Stability; INSOLUBLE HOST MOLECULES; STABILITIES; RECOGNITION; CATIONS; RECEPTOR; LIGANDS; AMINE; OLD;

D O I：

10.1080/00032719.2011.553011

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The ligand calix[4]pyrrole is quite insoluble in aqueous solution. In the presence of NaCl, KCl, CsCl, NH4Cl, CaCl2, and CdCl2, the solubility of calix[4]pyrrole linearly increases with the salt concentration. The ligand calix[4]pyrrole forms stable complexes with the chloride anion. All other halogen anions do not form complexes. The measurement of the amount of dissolved ligand allows the determination of the complex stabilities in aqueous solution. This experimental method is discussed in detail due to its general suitability to study the complexation reactions with nearly insoluble ligands.

引用

页码：2703 / 2710

页数：8

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