Complexation of di-benzyloxy ether derivatives of calix[4]arene with alkali earth metal cations

被引：0
|
作者：
Farrokh Gharib
Saeid Taghvaei
Sara Ghazi
机构：
[1] Shahid Beheshti University,Chemistry Department
[2] I. Azad University,Chemistry Department
[3] North Tehran Branch,Chemistry Department
[4] I. Azad University,undefined
来源：
Russian Journal of Inorganic Chemistry | 2007年 / 52卷
关键词：
Macro Cycle; Benzyl Chloride; Alkali Earth; Spectrophotometric Titration; Alkali Earth Metal;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The synthesis and complexing abilities of 26,28-bis-benzyloxy-25,27-dihydroxy-5,11,17,23-tetra-tertbutyl-calix[4]arene towards alkali earth metal ions Mg2+, Ca2+, Sr2+, and Ba2+ in a methanol-chloroform mixture have been evaluated at 25°C, using UV-Vis spectrophotometric techniques. The results showed that the ligand is capable to complex all alkali earth cations by 1:1 metal to ligand ratios. The selectivity presented considering the calculated stability constants are in the order Mg2+ > Ca2+ > Sr2+ > Ba2+ towards the ligand.
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页码：1915 / 1917
页数：2
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