Complexation of L-arginine and L-lysine by p-sulphonatocalix (61 arene in aqueous solution at different temperatures

الموضوعات : Journal of Physical & Theoretical Chemistry

M. Faraji ¹ , K. Zare ² , A. Farajtabar ³ , F. Gharib ⁴

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تاريخ الإرسال : 13 الأحد , شعبان, 1436 تاريخ التأكيد : 13 الأحد , شعبان, 1436 تاريخ الإصدار : 01 الإثنين , رمضان, 1432

الکلمات المفتاحية: p-sulphonatocalix [6] arene, Amino acid, Equilibrium constant, Thermodynamic&#x0D, &#x0D, parameters,

ملخص المقالة :

The interaction of p-sulphonatocalix [6] arene towards L-arginine and L-lysine has been studied inacidic aqueous solution (p1-1 2) using UV-Vis spectrophotometric titration technique. The psulphonatocalix[6] arene was found to be able to form 1:1 complexe with amino acids in water.The values of the association constant were determined at different temperatures to evaluate thethermodynamic functions of the complexation reaction. The thermodynamics values of complexeswere compared to each other.