Synthesis of covalently bonded boron-dipyrromethene-diarylethene for building a stable photosensitizer with photo-controlled reversibility.

We report the synthesis and characterization of a photosensitizer containing boron-dipyrromethene and diarylethene. The photosensitizer has photo-controlled reversible photosensitivity and offers potential applications in photochemical catalysis and the degradation of organic pollutants.