Thermodynamic Studies on the Complexation of Cobalt(II) with Dopamine in a Cosolvent System

被引：0
作者：
A. Bagheri
D. M. Boghaei
机构：
[1] Islamic Azad University,Department of Chemistry, Center Tehran Branch
[2] Sharif University of Technology,Department of Chemistry
来源：
Journal of Solution Chemistry | 2007年 / 36卷
关键词：
Cobalt(II); Dopamine; Complexation; Cosolvent; Spectrophotometry; Potentiometry;
D O I：
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中图分类号：
学科分类号：
摘要：
Equilibrium constants for formation of a cobalt(II) complex with the bidentate ligand dopamine have been studied with spectrophotometric methods in water + ethanol cosolvent systems at 15, 25, and 35 (±0.1) °C and an ionic strength of 0.2 mol⋅dm−3. The ionic strength was maintained using sodium chloride and a phosphate buffer. The stability constants of the complex and the resulting Gibbs energy changes are obtained. The results are discussed in terms of the effect of solvent on protonation and complexation.
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页码：595 / 604
页数：9
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