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A new amino acid calix[4]arene derivative (5) has been designed, synthesized, characterized with different methods such as HRMS, NMR and FTIR. Our result shows that molecular receptor (5) is more proper for recognizing copper ion than other metal ions. In this paper we have developed a new sensor material for common ions such as copper at low concentration.

Amino Acid Derivative of Calix[4]Arene as Schiff Base for Sensing of Copper(II)