STABILITY CONSTANTS OF O-PHENYLENEDIOXYDIACETIC ACID CHELATES OF BIVALENT METALS

被引：21

作者：

SUZUKI, K

HATTORI, T

YAMASAKI, K

机构：

[1] Inorganic Chemistry Laboratory, Faculty of Science, Nagoya University, Nagoya

来源：

JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY | 1968年 / 30卷 / 01期

关键词：

D O I：

10.1016/0022-1902(68)80075-2

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The stability constants of o-phenylenedioxydiacetic acid chelates of bivalent metals were determined by the pH titration method at 25°C and ionic strength of 0·1, and the results were compared with those of phenoxyacetic acid and α-carboxyphenoxyacetic acid chelates previously reported. The stability constants of the 1 : 1 chelates, log K1 determined were: Cd 3·8, Cu 3·3, Ca 3·1, Mn 2·8, Sr 2·3, Zn 2·0, Ba 2·0, Ni 1·6, Mg < 1·5 and Co 1·1. Lead formed precipitates with this ligand. The unusual stability order of these chelates is supposed to be due to the ligand structure involving the ether-bonded oxygen atom. © 1968.

引用

页码：161 / &

共 9 条

[1] SYNTHESIS OF CHELATING AGENTS .3. CHELATING BEHAVIOR OF KETO DERIVATIVES OF IMINODIACETIC ACIDS [J].