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
收藏
页码：123 / 132
页数：10
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