A Novel Selective Anion Receptor for Iodide Ion: Synthesis, Characterization and Anion Binding

Abstract

A carbazole-based neutral anion receptor 3 has been designed and synthesized. Anion binding studies carried out using ¹H NMR and UV-visible reveal that this compound showed good selectivity for the iodide ion over other anions. The high selectivity for iodide ion among the anions is attributed mainly to the complementarity of the geometries between the receptor 3 and iodide ion.

Keywords:

• Carbazole derivatives
• Anion receptor
• Iodide ion
• Anion binding

Acknowledgements

This work was supported by the National Natural Science Foundation of China (20371028, 20671052) and by the Natural Science Foundation of Tianjin (023605811).