Synthesis, spectral studies, and determination of stability constants and thermodynamic parameters for some aromatic diamine transition-metal complexes |
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| Authors: | H. Temel B. Ziyadanogullari H. Alp I. Aydın F. Aydın S. İlhan |
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| Affiliation: | (1) Department of Chemistry, Faculty of Education, Dicle University, Diyarbakir, Turkey;(2) Department of Chemistry, Faculty of Arts and Sciences, Dicle University, Diyarbakir, Turkey |
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| Abstract: | The Cu(II) and Zn(II) complexes of aromatic bidentate diamines were prepared and characterized by different analytical and spectral methods. Thermodynamic parameters of complexes of Cu(II) and Zn(II) cations with 1,3-bis(p-aminophenoxy)propane were determined in 60 vol. % DMF-H2O at various ionic strengths (0.07, 0.13, 0.2 M NaNO3) and different temperatures (45, 50, 55, 60 ± 0.1°C) using a spectrophotometric method. The NaNO3 solution was used to maintain the ionic strength. The stability constants show an inverse relationship with ionic strengths. The thermodynamic parameters of 60 vol. % DMF-H2O (ΔG°, ΔH°, ΔS°) based on these formation constants were determined. The text was submitted by the authors in English. |
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