Complexation of alkali metal ions by totrapropary-monoamine and tetrabutoxytriamine utak] arenes

الموضوعات : Journal of Physical & Theoretical Chemistry

Noushin Osouleddini ¹ , Karim Zare ²

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تاريخ الإرسال : 05 السبت , شعبان, 1436 تاريخ التأكيد : 05 السبت , شعبان, 1436 تاريخ الإصدار : 13 الأحد , ذو القعدة, 1430

الکلمات المفتاحية: Callx[4]arene, Alkali metal cations, Complexation, Formation constant,

ملخص المقالة :

The complexive abilities of 5,11,17-tddert-butyl-23 amino-25.26,27,28-tet3propoxy-calix[4]arere and5,1127-tri-amino-23 acelyktert-butylamide-25,26,27,28-tetrabutoxy-calixplarene towards alkali metalions Lit Nat, Kt RIC and Cs+ in methanol-chloroform mixture have been evaluated at 25 °C, using UVVis spectrophotometric techniques. The results showed that the hgands are capable to complex with all ofthe alkali cations by LI metal to ligand ratios The selectivity presented considering the calculatedformation constants are in the order Li* > Na > C, Kb+ > Cs for the ligands