THE COMPLEXATION OF ALKALINE CATIONS BY CROWN-ETHERS AND CRYPTANDS IN ACETONE

被引：26

作者：

BUSCHMANN, HJ

CLEVE, E

SCHOLLMEYER, E

机构：

[1] Deutsches Textilforschungszentrum Nord-West e.V., Krefeld, D-47798

来源：

JOURNAL OF SOLUTION CHEMISTRY | 1994年 / 23卷 / 05期

关键词：

ACETONE; CROWN ETHERS; CRYPTANDS; COMPLEX FORMATION; ION PAIRS; ALKALI METAL IONS;

D O I：

10.1007/BF00972745

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：

Stability constants and thermodynamic values for the complex formation of alkali ions by crown ethers, diaza crown ethers and cryptands have been measured by means of potentiometric and calorimetric titrations in acetone as solvent. The interactions between the ligands and solvent molecules play an important role for the complex formation. Cryptands form the most stable complexes with alkali ions if inclusion complexes are formed. Even in the case that the salts are not completely dissociated in acetone the presence of ion pairs does not influence the calculated values of the stability constants.

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页码：569 / 577

页数：9

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