Fig. 7: AIE properties of BCE[5].

Fluorescence spectra of a sym-BCE[5] and b asym-BCE[5] in CHCl₃-acetone mixed solvent with different volume fractions of acetone (λ_ex = 350 nm, c = 20.0 µM). c emission photos of sym-BCE[5] in CHCl₃ with f_acetone = 10–90 vol% under 365 nm UV-light.