POLAROGRAPHIC STUDY OF TL-SOLVENTS(, LI+, NA+, K+, AND CS+ COMPLEXES WITH MONENSIN ANION IN DIPOLAR APROTIC)

Authors
FILIPEK S RZESZOTARSKA J KALINOWSKI MK
Citation
S. Filipek et al., POLAROGRAPHIC STUDY OF TL-SOLVENTS(, LI+, NA+, K+, AND CS+ COMPLEXES WITH MONENSIN ANION IN DIPOLAR APROTIC), Monatshefte fuer Chemie, 125(8-9), 1994, pp. 801-809
Citations number
35
Categorie Soggetti
Chemistry
Journal title
Monatshefte fuer Chemie → ACNP
ISSN journal
00269247
Volume
125
Issue
8-9
Year of publication
1994
Pages
801 - 809
Database
ISI
SICI code
0026-9247(1994)125:8-9<801:PSOTLN>2.0.ZU;2-Y
Abstract
The stability constants, K-s, of monensin complexes with Li+, Na+, Kand Cs+ ions were studied by a competitive polarographic method using the Tl+/Tl(Hg) redox couple as a sensitive electrochemical probe. The K-s values are strongly influenced by the solvents (acetonitrile, prop ionitrile, acetone, N,N-dimethylformamide, N-methyl pyrolidinone, N,N- dimethylacetamide, dimethylsulfoxide, N,N-diethylformamide and N,N-die thylacetamide were used in experiments) and vary inversely with the Gu tmann donicity scale. Molecular mechanics computations revealed the pr obable structures of the complexes.