Excited-state dynamics of sinapate esters in aqueous solution and polyvinyl alcohol film

doi:10.1016/j.jlumin.2018.10.111

	Excited-state dynamics of sinapate esters in aqueous solution and polyvinyl alcohol film
	Zhao, Xi 1,2; Liu, Yan 1,2; Luo, Jian 1; Yang, Songqiu 1
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.
资助项目	National Natural Science Foundation of China[21773238]
WOS关键词	PHOTOPROTECTION MECHANISM ; METHOXY METHYLCINNAMATE ; SUNSCREENS ; PHOTOISOMERIZATION ; VISCOSITY ; BEHAVIOR ; DESIGN ; ACID
WOS研究方向	Optics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000451782900072
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/166616]
专题	大连化学物理研究所_中国科学院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	Zhao, Xi,Liu, Yan,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	Zhao, Xi,Liu, Yan,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	Zhao, Xi,et al."Excited-state dynamics of sinapate esters in aqueous solution and polyvinyl alcohol film".JOURNAL OF LUMINESCENCE 206(2019):469-473.