Calix[4]arene-based Cs+ selective optical sensor

Abstract

1,3-Calix[4]bis(9-cyano-10-anthrylmethyl)-o-benzocrown-6 has been synthesized as a first generation caesium selective fluorescent probe, and its emission behavior in the presence of Li⁺, Na⁺, K⁺ and Cs⁺ ions has been examined.