ELECTROCHEMICAL REDUCTION OF MONO-VALENT CATION COMPLEXES OF MACROCYCLIC IONOPHORES .2. VALINOMYCIN AND MACROTETROLIDE COMPLEXES

被引：37

作者：

HOFMANOVA, A

KORYTA, J

BREZINA, M

RYAN, TH

ANGELIS, K

机构：

[1] J. Heyrovský Institute of Physical Chemistry and Electrochemistry, Czechoslovak Academy of Sciences, 11000 Prague 1, Opletalova

来源：

INORGANICA CHIMICA ACTA | 1979年 / 37卷 / 02期

关键词：

D O I：

10.1016/S0020-1693(00)95534-8

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The stability and selectivity of complex formation of natural macrocyclic ionophores with alkali metal ions and monovalent thallium ion was studied by polarography. With valinomycin both stability constants and homogeneous dissociation rate constants were determined from polarographic kinetic currents. The macrotetrolides gave diffusion controlled currents. The stability of their complexes increases with the degree of substitution from nonactin to trinactin. The properties of natural ionophores were compared wiht those of crown polyethers. The selectivity of complex formation of valinomycin almost coincides with its effect on the increase of the conductivity of bilayer lipid membranes. © 1979.

引用

页码：135 / 140

页数：6

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