An europium(III) hydrolytic catalyst favoring anionic phosphate esters over phosphate triester

被引：0

作者：

Yoon, CW ^{[1
]}

Oh, SJ ^{[1
]}

Jeon, YJ ^{[1
]}

Choi, YS ^{[1
]}

Son, YK ^{[1
]}

Hwangbo, S ^{[1
]}

Ku, JK ^{[1
]}

Park, JW ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol, Div Mol & Life Sci, Dept Chem, Ctr Integrated Mol Syst, Pohang 790784, South Korea

来源：

BULLETIN OF THE KOREAN CHEMICAL SOCIETY | 2001年 / 22卷 / 02期

关键词：

europium hydrolytic catalyst; phosphate esters; luminescence spectra;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A Cryptate (221) having a short alcohol pendant (2) was metallated with europium(III) in anhydrous condition, and its hydrolytic activity for phosphate esters at neutral pH was examined. While the activity for the phosphate diester and monoester is comparable to that of the parent metal complex [1Eu](3+), its hydrolytic activity towards a phosphate triester is significantly suppressed. Potentiometric titration and luminescence spectroscopic studies for the equilibrium behavior of the complex in solution suggest that a dimer formation through the metal hydroxides as well as the pendant alcohol is likely to happen. The low hydrolytic activity for the triester seems to be associated with the dimer formation.

引用

页码：199 / 204

页数：6

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