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Wu Z, Wang M, Guo Y, Ji F, Wang C, Wang S, Zhang J, Wang Y, Zhang S, Jin B, Zhao G. Nonadiabatic Dynamics Mechanism of Chalcone Analogue Sunscreen FPPO-HBr: Excited State Intramolecular Proton Transfer Followed by Conformation Twisting. J Phys Chem B 2021; 125:9572-9578. [PMID: 34433282 DOI: 10.1021/acs.jpcb.1c05809] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Nowadays, traditional sunscreen molecules face many adverse problems: single energy relaxation pathway, lack of adequate UVA light protection, and therefore no longer meeting the growing demand for UVA protection. In this work, we reported a novel sunscreen molecule (E)-3-(5-bromofuran-2-yl)-1-(2-hydroxyphenyl)prop-2-en-1-one (hereinafter referred to as FPPO-HBr) which tackled adverse problems of traditional sunscreen molecules as single energy relaxation pathway, lacking effective UVA light protection. Various nonradiative pathways were proposed and verified by combining the steady-state and femtosecond transient absorption (FTA) spectroscopy and theoretical calculation. Upon UV excitation, the FPPO-HBr mainly decays via excited-state intramolecular proton transfer (ESIPT) followed by conformation twist in ultrafast manner. Importantly, 1H NMR spectra proved that the FPPO-HBr could not undergo trans-cis photoisomerization. Additionally, excellent photostability was also observed for newly synthesized FPPO-HBr. The current work could provide new perspectives for sunscreen molecules synthesis and mechanism.
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Affiliation(s)
- Zibo Wu
- MeChem Group, Molecular Dynamic Chemistry Center, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, National Demonstration Center for Experimental Chemistry & Chemical engineering Education, School of Science, Tianjin University, Tianjin 300354, China
| | - Mengqi Wang
- MeChem Group, Molecular Dynamic Chemistry Center, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, National Demonstration Center for Experimental Chemistry & Chemical engineering Education, School of Science, Tianjin University, Tianjin 300354, China
| | - Yurong Guo
- MeChem Group, Molecular Dynamic Chemistry Center, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, National Demonstration Center for Experimental Chemistry & Chemical engineering Education, School of Science, Tianjin University, Tianjin 300354, China.,New Sunscreens Development and UV Photoprotection Research Center, Tianjin ChenyinSTI Co., Ltd., Xinghua Road at Xeda, Tianjin 300385, China
| | - Feixiang Ji
- MeChem Group, Molecular Dynamic Chemistry Center, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, National Demonstration Center for Experimental Chemistry & Chemical engineering Education, School of Science, Tianjin University, Tianjin 300354, China
| | - Chao Wang
- MeChem Group, Molecular Dynamic Chemistry Center, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, National Demonstration Center for Experimental Chemistry & Chemical engineering Education, School of Science, Tianjin University, Tianjin 300354, China
| | - Shiping Wang
- MeChem Group, Molecular Dynamic Chemistry Center, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, National Demonstration Center for Experimental Chemistry & Chemical engineering Education, School of Science, Tianjin University, Tianjin 300354, China
| | - Jingran Zhang
- MeChem Group, Molecular Dynamic Chemistry Center, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, National Demonstration Center for Experimental Chemistry & Chemical engineering Education, School of Science, Tianjin University, Tianjin 300354, China.,New Sunscreens Development and UV Photoprotection Research Center, Tianjin ChenyinSTI Co., Ltd., Xinghua Road at Xeda, Tianjin 300385, China
| | - Ye Wang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science, Chinese Academy of Sciences, Wuhan 430071, China
| | - Song Zhang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science, Chinese Academy of Sciences, Wuhan 430071, China
| | - Bing Jin
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science, Chinese Academy of Sciences, Wuhan 430071, China
| | - Guangjiu Zhao
- MeChem Group, Molecular Dynamic Chemistry Center, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, National Demonstration Center for Experimental Chemistry & Chemical engineering Education, School of Science, Tianjin University, Tianjin 300354, China
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