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	Excited-state dynamics of sinapate esters in aqueous solution and polyvinyl alcohol film
	Liu, Yan1,2; Zhao, Xi1,2; Luo, Jian1; Yang, Songqiu1
刊名	Journal of luminescence
	2019-02-01
卷号	206页码:469-473
关键词	Sunscreen Photoswitches Conical intersection Isomerization Photoisomerization Skin cancer Cinnamate
ISSN号	0022-2313
DOI	10.1016/j.jlumin.2018.10.111
通讯作者	Luo, jian(luojian@dicp.ac.cn) ; Yang, songqiu(sqyang@dicp.ac.cn)
英文摘要	Sunscreens are widely applied to protect skin from solar ultraviolet irradiation. the photodynamics of a series of sinapate esters are explored by the femtosecond transient absorption spectroscopy combined with the time-dependent density functional theory. the ester group is determined to have a negligible effect on the bright v (pi pi*) state, evidenced by the nearly same steady-state absorption and emission spectra of these sinapate esters. the nonradiative trans-cis photoisomerization along the v(pi pi*) state is found to be non-linearly dependent with the ester group size. the smallest methyl sinapate and the largest sinapoyl dimethyl malate have the shortest excited-state lifetimes (ca. 7 ps). in the poly(vinyl alcohol) (pva) film, the constrained environment leads to the emissions blue shifted and excited-state lifetime prolonged to more than one hundred picoseconds. the photostabilities of these sinapate esters are also tested and as high as the plant sunscreen sinapoyl malate.
WOS关键词	PHOTOPROTECTION MECHANISM ; METHOXY METHYLCINNAMATE ; SUNSCREENS ; PHOTOISOMERIZATION ; VISCOSITY ; BEHAVIOR ; DESIGN ; ACID
WOS研究方向	Optics
WOS类目	Optics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000451782900072
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2373065
专题	大连化学物理研究所
通讯作者	Luo, Jian; Yang, Songqiu
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, 457 Zhongshan Rd, Dalian 116023, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Beijing 10049, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yan,Zhao, Xi,Luo, Jian,et al. Excited-state dynamics of sinapate esters in aqueous solution and polyvinyl alcohol film[J]. Journal of luminescence,2019,206:469-473.
APA	Liu, Yan,Zhao, Xi,Luo, Jian,&Yang, Songqiu.(2019).Excited-state dynamics of sinapate esters in aqueous solution and polyvinyl alcohol film.Journal of luminescence,206,469-473.
MLA	Liu, Yan,et al."Excited-state dynamics of sinapate esters in aqueous solution and polyvinyl alcohol film".Journal of luminescence 206(2019):469-473.

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