THERMODYNAMICS OF ION ASSOCIATION .19. COMPLEXES OF DIVALENT METAL IONS WITH MONOPROTONATED ETHYLENEDIAMINETETRAACETATE

被引：48

作者：

BRUNETTI, AP

NANCOLLA.GH

SMITH, PN

机构：

[1] Chemistry Department, State University of New York at Buffalo, Buffalo

[2] Argonne National Laboratory, Chemical Engineering, Division, Argonne, III

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1969年 / 91卷 / 17期

关键词：

D O I：

10.1021/ja01045a014

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Free energy and enthalpy changes accompanying the protonation of divalent metal-ethylenediamine-tetraacetate complexes in the reaction MY2- + H+ ↔ MHY−, where H4Y represents EDTA, have been measured potentiometrically and calorimetrically at 25° and at an ionic strength maintained at 0.10 M with potassium nitrate. The metal ions investigated were Mn2T, Co2+, Ni2+, Cu2+, Zn2+, Cd2+, and Hg2+. The data are discussed in terms of the extent of coordination of the multidentate ligand with the metal ions, and comparisons are made with the corresponding thermodynamic functions for the formation of related metal complexes. © 1969, American Chemical Society. All rights reserved.

引用

页码：4680 / &

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