COMPARISON AND THERMODYNAMIC STUDIES ON COMPLEXATION OF ALANINE WITH VANADIUM(V) IN MIXED-SOLVENT SYSTEMS

被引：9
|
作者：
MONAJJEMI, M
ZARE, K
GHARIB, F
机构：
[1] ISLAMIC AZAD UNIV, DEPT DOCTORAL, TEHRAN, IRAN
[2] ISLAMIC AZAD UNIV, DIV RES, TEHRAN, IRAN
[3] SHAHID BEHESHTI UNIV, DEPT CHEM, TEHRAN, IRAN
来源：
JOURNAL OF CHEMICAL AND ENGINEERING DATA | 1995年 / 40卷 / 02期
关键词：
D O I：
10.1021/je00018a012
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The stability constant on complexation of VO2+ with alanine in mixed solvent systems of methanol + water and ethanol + water have been determined spectrophotometrically at 25 +/- 0.1 degrees C and I = 1 mol.dm(-3) of sodium perchlorate as ionic medium in the pH range 1.3-2.3, with high ligand-to-metal ratios. Linear relationships are observed when log K is plotted versus 1/D, where K and D represent stability and dielectric constants of the system, respectively. Also, the results are discussed in terms of the effect of solvent on protonation and complexation.
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页码：419 / 422
页数：4
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