A study of mixed ligand complexes using differential pulse polarography |
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Authors: | H.M. Killa M.G.Abd El Wahed H.A. Dessouki |
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Affiliation: | Chemistry Department, Faculty of Science, Zagazig University, Zagazig, Egypt |
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Abstract: | Differential pulse polarography was used to study the mixed ligand complexes of trimethylenediamine (TMDA) and oxalate (OX) with Cd(II) at constant ionic strength (μ = 1, NaNO3) at 25°C. It has been found that the reduction of complexes is reversible and diffusion-controlled. Three mixed complexes, [Cd(TMDA)(OX)], [Cd(TMDA)(OX)2]2? and [Cd(TMDA)2(OX)], are formed. Their overall stability constants are: log β11 = 6.78, log β12 = 7.53 and log β21 = 8.20, respectively. |
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Keywords: | Author to whom correspondence should be addressed. |
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