Interaction of Dimethyltin(IV) with DNA Constituents |
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| Authors: | Othman Al-Flaijj Mohamed R Shehata Mahmoud M A Mohamed and Mohamed M Shoukry |
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| Institution: | (1) Department of Inorganic and Analytical Chemistry, University of Szeged, PO Box 440, 6701 Szeged, Hungary;(2) Lehrstuhl f?r Physikalische Chemie, Montanuniversit?t Leoben, 8700 Leoben, Austria |
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| Abstract: | The interaction of dimethyltin(IV) (DMT) with some selected DNA constituents was investigated potentiometrically. The stepwise formation constants of the complexes were determined, and
the concentration distribution of the various complex species was evaluated as a function of pH. The effect of dioxane on the protonation constants of the ligands and the formation constants of dimethyltin(IV) complexes
are discussed. The thermodynamic parameters Δ H° and ΔS° were calculated from the temperature dependence of the equilibrium
constants. |
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