Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5412794 | Journal of Molecular Liquids | 2010 | 5 Pages |
Abstract
The stability constant for complexation of gadolinium(III) with dopamine in mixed solvent systems of ethanol + water and free-energy changes have been determined spectro-photometrically with a temperature variation method in 0.2 mol dmâ 3 sodium chloride as ionic medium employed at [(15, 25 and 35 ± 0.1) °C] at pH ranges of ~ 5 to ~ 7.5 with a high ratio of ligand to metal. The effect of solvent systems on protonation and complexation are discussed. Linear relationships are observed by plotting log K versus 1/D, where K and D are the stability and dielectric constants, respectively.
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Authors
Azar Bagheri Gh,