A study of the metal complexing of naphthalene-2,3crown ethers using fluorescence spectroscopy: Part III

2,3-Dioxanaphthalene derivatives of [3n]crown-n macrocycles were synthesised from 2,3dihydroxynaphthalene and polyglycoldihalides and studied for their cationic recognition properties using steady state fluorescence spectroscopy. The association constants for the interaction of 2,3-naphtho[12]crown-4, 2,3-naphtho[15]crown-5 and 2,3-naphtho[18] crown-6 with LiClO4, NaClO4, NaSCN, and KSCN were measured in acetonitrile. Excellent correlation of spectroscopic, cationic charge-radii and macrocycle backbone size data was found.