TY - JOUR AU - Horbury, Michael D. AU - Turner, Matthew A. P. AU - Peters, Jack S. AU - Mention, Matthieu AU - Flourat, Amandine L. AU - Hine, Nicholas D. M. AU - Allais, Florent AU - Stavros, Vasilios G. PY - 2020 M3 - Original Research TI - Exploring the Photochemistry of an Ethyl Sinapate Dimer: An Attempt Toward a Better Ultraviolet Filter JO - Frontiers in Chemistry UR - https://www.frontiersin.org/articles/10.3389/fchem.2020.00633 VL - 8 SN - 2296-2646 N2 - The photochemistry and photostability of a potential ultraviolet (UV) radiation filter, dehydrodiethylsinapate, with a broad absorption in the UVA region, is explored utilizing a combination of femtosecond time-resolved spectroscopy and steady-state irradiation studies. The time-resolved measurements show that this UV filter candidate undergoes excited state relaxation after UV absorption on a timescale of ~10 picoseconds, suggesting efficient relaxation. However, steady-state irradiation measurements show degradation under prolonged UV exposure. From a photochemical standpoint, this highlights the importance of considering both the ultrafast and “ultraslow” timescales when designing new potential UV filters. ER -