Substitution effect on the nonradiative decay and trans → cis photoisomerization route: a guideline to develop efficient cinnamate-based sunscreens

Author:

Kinoshita Shin-nosuke12345,Harabuchi Yu16785,Inokuchi Yoshiya12345ORCID,Maeda Satoshi16785ORCID,Ehara Masahiro91051110ORCID,Yamazaki Kaoru1213145ORCID,Ebata Takayuki12345ORCID

Affiliation:

1. Department of Chemistry

2. Graduate School of Science

3. Hiroshima University

4. Higashi-Hiroshima 739-8526

5. Japan

6. Faculty of Science

7. Hokkaido University

8. Sapporo 060-0810

9. SOKENDAI, the Graduate University for Advanced Studies

10. Okazaki 444-8585

11. Institute for Molecular Science and Research Center for Computational Science

12. Institute for Materials Research

13. Tohoku University

14. Sendai

Abstract

Para-substituted cinnamates are promising sunscreen reagents. They undergo efficient multistep nonradiative decay via the 1nπ* (and/or 3nπ*) and 3ππ* states and finally transcis photoisomerization. Para-substitution stabilizes π orbitals and enhances the photoisomerization.

Funder

Ministry of Science and Technology, Taiwan

Precursory Research for Embryonic Science and Technology

Japan Society for the Promotion of Science

Core Research for Evolutional Science and Technology

Publisher

Royal Society of Chemistry (RSC)

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy

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