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| بین المللی علوم (منتشر نمی شود) | ||
| مقاله 2، دوره 1، شماره 0 - شماره پیاپی 1363، پاییز 1380 اصل مقاله (152.49 K) | ||
| نویسندگان | ||
M.R.Ganjali؛ M. Kargar-Razi؛ Z. Pourghobadi؛ A. Moghimi؛ H. Aghabozorg؛ A. Mohajeri 
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| عنوان مقاله [English] | ||
| - | ||
| چکیده [English] | ||
| A conductance study of the interaction between Co2+, Ni2+, Cu2+, Zn2+, Cd2+, Pb2+ and Hg2+ ions with thiophen derived schiff’s base in acetonitrile solution has been carried out at different temperatures. Formation constants of the resulting 1:1 complexes were determined from the molar conductance – mole ratio data and found to vary in the sequence Pb2+> Hg2+> Cd2+> Cu2+> Ni2+> Co2+> Zn2+. The enthalpy and entropy of complexation were determined from the temperature dependence of the formation constant. In all cases, the complexes were found to be enthalpy stabilized but entropy destabilized. | ||
| کلیدواژه‌ها [English] | ||
| Complexes, conductometry, schiff’s base, thermodynamic, transition metal ions | ||
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آمار تعداد مشاهده مقاله: 993 تعداد دریافت فایل اصل مقاله: 817 |
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