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

Subject Areas : Journal of Physical & Theoretical Chemistry

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Received: 2015-05-23 Accepted : 2015-05-23 Published : 2009-11-01

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

Abstract :

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

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