A new anthracene derivative of calix[4]arene as a fluorescent chemosensor

A new anthracene derivative of calix[4]arene was synthesized as a highly fluorescent compound. This compound was examined for its fluorescent properties towards different metal ions (Li, Na, Mg2, Ca2, Ba2, Ni 2, Cu2, Zn 2, Pb2) by UV and fluorescence spectroscopy. On complexation by alkaline earth metal cations and transition metal cations, the fluorescence spectrum was quenched. In particular, Ca 2 caused greater than 98% quenching of the anthracene derivative of calix[4]arene.