Journal of the Chemical Society, Perkin Transactions 2

Synthesis of calix [4] crowns containing soft donor atoms and a study of their metal–cation binding properties: highly selective receptors for Cu 2+

M Ashram

Index: Ashram, Muhammad Journal of the Chemical Society, Perkin Transactions 2, 2002 , # 10 p. 1662 - 1668

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Citation Number: 23

Abstract

Two new calix [4] arenethiacrown derivatives 1 and 2 in the cone conformation were synthesized by two different pathways in good yield. Their complexation properties toward alkali, alkaline earth and transition metal cations were studied in acetonitrile at 298.15 K using a conductometric titration technique. The selectivity for Cu 2+ over other cations with these novel ligands was excellent.

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