NEW MULTIDENTATE LIGANDS .7. ETHYLENEDIAMINE-N,N'-DIACETIC-N,N'-DI (METHYLENEPHOSPHONIC) ACID

被引：24

作者：

RAJAN, KS

MURASE, I

MARTELL, AE

机构：

[1] Department of Chemistry, Illinois Institute of Technology, Chicago, Illinois

[2] Texas A & M University, College Station, Texas

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1969年 / 91卷 / 16期

关键词：

D O I：

10.1021/ja01044a014

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Synthesis, acid-base equilibria, and metal ion chelating tendencies of the new ligand, ethylenediamine-N,Nʹ-diacetic-N,Nʹ-di(methylenephosphonic) acid are reported. On the basis of potentiometric equilibrium measurements of hydrogen ion concentrations at 25° and ionic strength 1.00 (KNO3), acid dissociation constants of the ligand and the equilibrium constants for the interactions of the ligand with some representative metal ions have been evaluated. Probable structures of the metal chelates formed in solution are suggested on the basis of a comparison of their stabilities with those of analogous ligands. © 1969, American Chemical Society. All rights reserved.

引用

页码：4408 / &

共 5 条

[1] THE COBALT-(III) COMPLEXES OF ETHYLENEDIAMINEDIACETIC AND AMMONIADIACETIC ACIDS [J].