WIPM OpenIR  > 原子分子光物理研究部
Ultrafast investigation of photoinduced charge transfer in aminoanthraquinone pharmaceutical product
Zhang, Song; Sun, Simei; Zhou, Miaomiao; Wang, Lian; Zhang, Bing
2017-02-24
Source PublicationSCIENTIFIC REPORTS
Volume7Pages:1-9
SubtypeArticle
AbstractWe investigated the mechanism of intramolecular charge transfer and the following radiationless dynamics of the excited states of 1-aminoanthraquinone using steady state and time-resolved absorption spectroscopy combined with quantum chemical calculations. Following photoexcitation with 460 nm, conformational relaxation via twisting of the amino group, charge transfer and the intersystem crossing (ISC) processes have been established to be the major relaxation pathways responsible for the ultrafast nonradiative of the excited S-1 state. Intramolecular proton transfer, which could be induced by intramolecular hydrogen bonding is inspected and excluded. Time-dependent density functional theory (TDDFT) calculations reveal the change of the dipole moments of the S-0 and S-1 states along the twisted coordinate of the amino group, indicating the mechanism of twisted intramolecular charge transfer (TICT). The timescale of TICT is measured to be 5 ps due to the conformational relaxation and a barrier on the S-1 potential surface. The ISC from the S-1 state to the triplet manifold is a main deactivation pathway with the decay time of 28 ps. Our results observed here have yield a physically intuitive and complete picture of the photoinduced charge transfer and radiationless dynamics in anthraquinone pharmaceutial products.
WOS HeadingsScience & Technology
Funding OrganizationNational Basic Research Program of China(2013CB922202) ; National Basic Research Program of China(2013CB922202) ; National Natural Science Foundation of China(11674355 ; National Natural Science Foundation of China(11674355 ; 21573279) ; 21573279) ; National Basic Research Program of China(2013CB922202) ; National Basic Research Program of China(2013CB922202) ; National Natural Science Foundation of China(11674355 ; National Natural Science Foundation of China(11674355 ; 21573279) ; 21573279)
DOI10.1038/srep43419
WOS KeywordINTRAMOLECULAR PROTON-TRANSFER ; LASER-INDUCED FLUORESCENCE ; ANTIVIRAL AGENT HYPERICIN ; EXCITED-STATE DYNAMICS ; PHOTODYNAMIC THERAPY ; ANTHRAQUINONE DERIVATIVES ; SHPOLSKII MATRIX ; DNA ; SPECTROSCOPY ; 1-AMINOANTHRAQUINONE
Indexed BySCI
Language英语
Funding OrganizationNational Basic Research Program of China(2013CB922202) ; National Basic Research Program of China(2013CB922202) ; National Natural Science Foundation of China(11674355 ; National Natural Science Foundation of China(11674355 ; 21573279) ; 21573279) ; National Basic Research Program of China(2013CB922202) ; National Basic Research Program of China(2013CB922202) ; National Natural Science Foundation of China(11674355 ; National Natural Science Foundation of China(11674355 ; 21573279) ; 21573279)
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000395239100001
Citation statistics
Cited Times:34[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.wipm.ac.cn/handle/112942/10045
Collection原子分子光物理研究部
AffiliationChinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Song,Sun, Simei,Zhou, Miaomiao,et al. Ultrafast investigation of photoinduced charge transfer in aminoanthraquinone pharmaceutical product[J]. SCIENTIFIC REPORTS,2017,7:1-9.
APA Zhang, Song,Sun, Simei,Zhou, Miaomiao,Wang, Lian,&Zhang, Bing.(2017).Ultrafast investigation of photoinduced charge transfer in aminoanthraquinone pharmaceutical product.SCIENTIFIC REPORTS,7,1-9.
MLA Zhang, Song,et al."Ultrafast investigation of photoinduced charge transfer in aminoanthraquinone pharmaceutical product".SCIENTIFIC REPORTS 7(2017):1-9.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang, Song]'s Articles
[Sun, Simei]'s Articles
[Zhou, Miaomiao]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang, Song]'s Articles
[Sun, Simei]'s Articles
[Zhou, Miaomiao]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang, Song]'s Articles
[Sun, Simei]'s Articles
[Zhou, Miaomiao]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.