Thermodynamics of mixed-ligand complex formation of copper (II) ethylenediaminetetraacetate with hexamethylenediamine in an aqueous solution

被引：6
|
作者：
Pyreu, D. F. [1 ]
Kozlovskii, E. V. [1 ]
机构：
[1] Ivanovo State Univ, Ivanovo 153025, Russia
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2010年 / 100卷 / 01期
关键词：
Thermodynamic parameters; Mixed-ligand complex; Copper (II) ethylenediaminetetraacetate; Hexamethylenediamine; Denticity; CU(II); ACID; EDTA; IRON(III); PYRIDINE; ZINC(II); NICKEL;
D O I：
10.1007/s10973-009-0144-y
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The mixed-ligand complex formation in the system Cu2+-Edta(4-)-(CH2)(6)(NH2)(2) (L), where L is hexamethylenediamine has been calorimetrically, pH-potentiometrically and spectrophotometrically studied in aqueous solution at 298.15 K and the ionic strength of I = 0.5 (KNO3). The thermodynamic parameters of formation of the CuEdtaL(2-), CuEdtaHL(-) (CuEdta)(2)L4- and (CuEdta)(2)En(4-) complexes have been determined. The most probable coordination mode for the complexone and the ancillary ligand in the mixed-ligand complexes was discussed.
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页码：355 / 360
页数：6
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