Alkali metal ion select ability of di-propoxy- p-tert-butyl-Calix[4]arene, synthesized in acetonitrile

Subject Areas : Journal of the Iranian Chemical Research

Afsaneh Amiri ¹ , Mahshid Nikpour Nezhati ²

1 - Department of Chemistry, Islamic Azad University, Central Tehran Branch, Tehran, Iran
2 - Department of Chemistry, Islamic Azad University, Central Tehran Branch, Tehran, Iran

Received: 2010-01-25 Accepted : 2010-05-23 Published : 2010-12-31

Keywords: Di-propoxy- p-Tert-butyl-Calix[4]arene, Alkali Metal, Synthesis, Acetonitrile,

Abstract :

Synthesis and cation selectivity of 25, 27, dipropoxy-26, 28, Di-propoxy 5, 11, 17, 23, ptert-butyl Calix[4]arene are studied in acetonitrile solution. The stability constants of differentcomplexes of Calixarene (as a ligand) with alkali metal cations are determined at 25 °C by usingspectrophotometric technique.On the basis of calculations, complexation of Calixarene with Cs+and Li+ are more favored than others. In all cases, it has been shown to form exclusively 1:1(metal ion to ligand) complex with alkali cations in experimental condition.

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