Substitution Dependent Ultrafast Ultraviolet Energy Dissipation Mechanisms of Plant Sunscreens

doi:10.1021/acs.jpclett.9b02175

	Substitution Dependent Ultrafast Ultraviolet Energy Dissipation Mechanisms of Plant Sunscreens
	Zhao, Xi 1,2; Luo, Jian 1; Liu, Yan 1; Pandey, Pramod 1; Yang, Songqiu 1; Wei, Donghui 3; Han, Keli 1,4
刊名	JOURNAL OF PHYSICAL CHEMISTRY LETTERS
	2019-09-05
卷号	10 期号:17 页码:5244-5249
ISSN号	1948-7185
DOI	10.1021/acs.jpclett.9b02175
通讯作者	Han, Keli(klhan@dicp.ac.cn)
英文摘要	An ultraviolet energy dissipation mechanism plays a critical role in the photoprotection effect of sunscreens. In this work, we discovered substitution dependent UV energy dissipation mechanisms of model plant sunscreen methyl sinapate (MS). We found that the initially populated V(pi pi) states of MS and p-OMeMS relax to the ground state nonradiatively along an ultrafast trans-cis photoisomerization in tens of picoseconds. However, for p-HMS, an internal conversion from V(pi pi) to a relative dark V'(pi pi) state occurs in less than 1 ps, leading to a branching of the excited-state relaxations. The V (pi pi) state still relaxes nonradiatively as in the case of MS and p-OMeMS. In contrast, the V'(pi pi) state decays to the ground state mainly by emitting photons, exhibiting a lifetime as long as 5 ns. It is the first time to definitely distinguish the dynamics between V(pi pi) and V'(pi pi) states in the study of sinapates and cinnamates. These results indicate the anticipation of the V'(pi pi) state should be avoided when designing sunscreens.
资助项目	National Natural Science Foundation of China[21833009] ; National Natural Science Foundation of China[21533010] ; National Natural Science Foundation of China[21703244] ; National Natural Science Foundation of China[21403226] ; National Key Research and Development Program of China[2016YFE0120900] ; National Key Research and Development Program of China[201 7YEA0204800] ; DICP[ZZBS201703] ; DICP[DMTO201601] ; Science Challenging Program[JCKY2016212A501]
WOS关键词	PHOTOACTIVE YELLOW PROTEIN ; EXCITED-STATE DYNAMICS ; DENSITY-FUNCTIONAL THEORY ; METHOXY METHYLCINNAMATE ; TARGET ANALYSIS ; PHOTOISOMERIZATION ; SPECTROSCOPY ; MOLECULES ; RADIATION ; ACID
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000484884300073
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; DICP ; DICP ; Science Challenging Program ; Science Challenging Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; DICP ; DICP ; Science Challenging Program ; Science Challenging Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; DICP ; DICP ; Science Challenging Program ; Science Challenging Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; DICP ; DICP ; Science Challenging Program ; Science Challenging Program
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/172992]
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	Han, Keli
作者单位	1.Chinese Acad Sci, DICP, 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 3.Zhengzhou Univ, Coll Chem & Mol Engn, 100 Sci Ave, Zhengzhou, Henan, Peoples R China 4.Shandong Univ, Inst Mol Sci & Engn, Qingdao 266237, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Xi,Luo, Jian,Liu, Yan,et al. Substitution Dependent Ultrafast Ultraviolet Energy Dissipation Mechanisms of Plant Sunscreens[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2019,10(17):5244-5249.
APA	Zhao, Xi.,Luo, Jian.,Liu, Yan.,Pandey, Pramod.,Yang, Songqiu.,...&Han, Keli.(2019).Substitution Dependent Ultrafast Ultraviolet Energy Dissipation Mechanisms of Plant Sunscreens.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,10(17),5244-5249.
MLA	Zhao, Xi,et al."Substitution Dependent Ultrafast Ultraviolet Energy Dissipation Mechanisms of Plant Sunscreens".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 10.17(2019):5244-5249.