Formation constants of complexes of monovalent cations with benzocrown ethers in nitromethane

被引：11

作者：

Inerowicz, HD ^{[1
]}

Chojnacki, J

Merz, A

Futterer, T

机构：

[1] Gdansk Tech Univ, Dept Chem, PL-80952 Gdansk, Poland

[2] Univ Regensburg, Inst Organ Chem, D-93040 Regensburg, Germany

来源：

JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY | 2000年 / 38卷 / 1-4期

关键词：

formation constants; stilbene crown ethers; conductometric titration; alkali metal cations; silver cation; nitromethane;

D O I：

10.1023/A:1008145406568

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The complexation reactions between the macrocyclic polyethers dibenzo-18-crown-6, benzo-18-crown-6, benzo-15-crown-5 and polyethers bearing a stilbene unit with alkali metal and silver cations have been studied conductometrically in nitromethane. The formation constants of 1 : 1 and 1 : 2 (metal : ligand) complexes were determined and found to decrease with increasing cation diameter. The stability of the stilbene crown - metal cation complexes is lower than for complexes of other investigated crown ethers with analogous cations. There seem to be some effects of double bond-silver ion interactions.

引用

页码：123 / 132

页数：10

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