ICCAS OpenIR
Restriction of Photoinduced Twisted Intramolecular Charge Transfer
Qian, Yan2,3,4; Cai, Min-Min2,3,4; Xie, Ling-Hai2,3,4; Yang, Guo-Qiang1; Wu, Shi-Kang1; Huang, Wei2,3,4
2011-02-07
Source PublicationCHEMPHYSCHEM
ISSN1439-4235
Volume12Issue:2Pages:397-404
AbstractAn intensive investigation of structure-property relationships in the aggregation-induced enhanced emission (AIEE) of luminescent compounds is essential for the rational design of highly emissive solid-state materials. In the AIEE-active compounds N,N'-bis[3-hydroxy-4-(2'-benzothiazolyl)phenyl]isophthalamide and N,N'-bis[3-hydroxy-4-(2'-benzothiazolyl)phenyl]-5-tert-butylisophthalamide, fast photoinduced twisted intramolecular charge transfer (TICT) of the enol excited state is found to be mainly responsible for the weak emission of their dilute solutions. The photoinduced TICT enol excited state is formed with a greatly distorted configuration, due to the large rotation about the C-N single bond. This facilitates nonradiative TICT decay from the normal enol excited state to the highly twisted enol excited state, rather than proton-transfer decay to the keto excited state. In aggregates, photoinduced nonradiative deactivation of TICT is strongly prohibited, so that excited-state intramolecular proton transfer (ESIPT) becomes the dominant decay, and hence contributes greatly to the subsequent emission enhancement of the keto form. Molecular design and investigation of analogous single-armed compounds further verifies this kind of AIEE mechanism.
KeywordAggregation Benzothiazoles Charge Transfer Fluorescence Photophysics
DOI10.1002/cphc.201000457
Indexed BySCI
Language英语
WOS IDWOS:000287792300023
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:46[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/72244
Collection中国科学院化学研究所
Corresponding AuthorYang, Guo-Qiang
Affiliation1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Key Lab Photochem, Inst Chem, Beijing 100080, Peoples R China
2.Nanjing Univ Posts & Telecommun, Key Lab Organ Elect, Nanjing, Peoples R China
3.Nanjing Univ Posts & Telecommun, Informat Displays KLOEID, Nanjing, Peoples R China
4.Nanjing Univ Posts & Telecommun, Inst Adv Mat IAM, Nanjing, Peoples R China
Recommended Citation
GB/T 7714
Qian, Yan,Cai, Min-Min,Xie, Ling-Hai,et al. Restriction of Photoinduced Twisted Intramolecular Charge Transfer[J]. CHEMPHYSCHEM,2011,12(2):397-404.
APA Qian, Yan,Cai, Min-Min,Xie, Ling-Hai,Yang, Guo-Qiang,Wu, Shi-Kang,&Huang, Wei.(2011).Restriction of Photoinduced Twisted Intramolecular Charge Transfer.CHEMPHYSCHEM,12(2),397-404.
MLA Qian, Yan,et al."Restriction of Photoinduced Twisted Intramolecular Charge Transfer".CHEMPHYSCHEM 12.2(2011):397-404.
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
[Qian, Yan]'s Articles
[Cai, Min-Min]'s Articles
[Xie, Ling-Hai]'s Articles
Baidu academic
Similar articles in Baidu academic
[Qian, Yan]'s Articles
[Cai, Min-Min]'s Articles
[Xie, Ling-Hai]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Qian, Yan]'s Articles
[Cai, Min-Min]'s Articles
[Xie, Ling-Hai]'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.