I. Leray, B. Valeur, F. O’Reilly, J.-L. Habib Jiwan, J.-Ph. Soumillion and B. Valeur
A new calix[4]arene with three ester groups and an appended naphthalenic fluorophore has been synthesized; investigation of its photophysical and complexing properties towards alkali and alkaline-earth metal ions reveals a high selectivity for Na+ in water–ethanol mixtures.