Figure 5From: A Cu2+ion-selective fluoroionophore with dual off/on switchesFluorescence intensity changes during the titration of derivative 1 ( c = 1 × 10-5 M) in CH 3 CN/CHCl 3 (9:1, v/v) with Cu2+ (from 1 × 10-8 to 5 × 10-4 M). Excitation wavelength was 344 nm and emission was at 467 nm for excimer and 395 nm for monomer.Back to article page