UM  > 健康科學學院
Anion-controlled dimer distance induced unique solid-state fluorescence of cyano substituted styrene pyridinium
Zhang, GB1; Zhang, XJ2; Kong, L1; Wang, SC2; Tian, YP1; Tao, XT3; Yang, JX1,3
2016
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume6
Abstract

Molecular packing arrangements play a key role in dominating the photophysical properties of luminophores in aggregated state but fine control of the molecular packing is a great challenge. This article describes a unique cyano substituted styrene pyridinium with interesting solid-state fluorescence that can be finely tuned by simple change of counteranions. The dilute solutions of the organic salts (PyCl, PyNO3, PyOTs and PyPh4B) exhibit very weak fluorescence. The crystals of the organic salts (PyCl, PyNO3, and PyOTs) show much enhanced fluorescence compared with their dilute solutions. It is interesting that the emissions changed from bluish-green to deep-blue and fluorescence quantum yields increase from 2.5% to 13.1% with the increasing ofsteric hindrance of the anions from chloridion, nitrate, to p-toluenesulfonate. Crystal and DFT studies reveal that the enhanced fluorescence is ascribed to the formation of dimers and bigger anions induce larger molecular separation in dimers. Tetraphenylboron anion with very large steric hindrance impedes the formation of dimers and thus results in non-fluorescent salt (PyPh4B). Meanwhile, this unique dimeric packing endows the crystal of PyNO3 with anisotropic fluorescence.

DOIhttp://dx.doi.org/10.1038/srep37609
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000388088500001
Fulltext Access
Citation statistics
Document TypeJournal article
CollectionFaculty of Health Sciences
Institute of Chinese Medical Sciences
Affiliation1.Anhui Univ, Key Lab Funct Inorgan Mat Anhui Prov, Coll Chem & Chem Engn, Hefei 230601, Peoples R China
2.Univ Macau, Fac Hlth Sci, Taipa, Macau, Peoples R China
3.Shandong Univ, State Key Lab Crystal Mat, Jinan 502100, Peoples R China
Recommended Citation
GB/T 7714
Zhang, GB,Zhang, XJ,Kong, L,et al. Anion-controlled dimer distance induced unique solid-state fluorescence of cyano substituted styrene pyridinium[J]. SCIENTIFIC REPORTS,2016,6.
APA Zhang, GB.,Zhang, XJ.,Kong, L.,Wang, SC.,Tian, YP.,...&Yang, JX.(2016).Anion-controlled dimer distance induced unique solid-state fluorescence of cyano substituted styrene pyridinium.SCIENTIFIC REPORTS,6.
MLA Zhang, GB,et al."Anion-controlled dimer distance induced unique solid-state fluorescence of cyano substituted styrene pyridinium".SCIENTIFIC REPORTS 6(2016).
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang, GB]'s Articles
[Zhang, XJ]'s Articles
[Kong, L]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang, GB]'s Articles
[Zhang, XJ]'s Articles
[Kong, L]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang, GB]'s Articles
[Zhang, XJ]'s Articles
[Kong, L]'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.