Spotlights on Recent JACS Publications

摘要

The deep-colored photochromic compound dihydropyrene (DHP) isomerizes to near-colorless cyclophanediene (CPD) upon irradiation with visible light. This process is reversible, with CPD isomerizing back to DHP upon irradiation with UV light or thermally in the dark. However, this molecular switch is unstable, with poor fatigue resistance, a phenomenon attributed to the decomposition of a biradical intermediate that forms during conversion.