Fig. 3From: Preparation and characterization of novel double-decker rare-earth phthalocyanines substituted with 5-bromo-2-thienyl groupsUV–vis spectra of 4 in CHCl3 at 20 mg l−1 upon addition of various amounts of Br2. Red line addition of 10 μl 0.01 M Br2, black line addition of 20 μl 0.44 M Br2 Back to article page