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

被引：0
|
作者：
Inerowicz, H.D. [1 ]
Chojnacki, J. [1 ]
Merz, A. [2 ]
Futterer, T. [2 ]
机构：
[1] Department of Chemistry, Technical University of Gdansk, 80-952 Gdansk, Poland
[2] Institute of Organic Chemistry, University of Regensburg, D-93040 Regensburg, Germany
来源：
| 2000年 / Springer Netherlands卷 / 38期
关键词：
Complexation - Ethers - Ligands - Metal ions - Positive ions - Silver;
D O I：
10.1023/a:1008145406568
中图分类号：
学科分类号：
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.
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