Photophysics of a UV‐B Filter 4‐Methylbenzylidene Camphor: Intersystem Crossing Plays an Important Role

• Published in: Chemphyschem Vol. 19; no. 6; pp. 744 - 752
• Main Authors: Fang, Ye‐Guang, Li, Chun‐Xiang, Chang, Xue‐Ping, Cui, Ganglong
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 19.03.2018
• Subjects: Camphor; conical intersection; Deactivation; Decay; electronic structure calculations; excited state; Internal conversion; Intersections; mechanism; photochemistry; Sun screens; electronic structure calculations; mechanism; photochemistry; excited state; conical intersection

4‐Methylbenzylidene camphor (4MBC) is a frequently used ultraviolet (UV) filter in commercial sunscreens, which is experimentally found to undergo efficient intersystem crossing to triplet manifolds followed by predominant radiationless decay to the ground state. However, its photophysical mechanism...