TITLE

Pyrazine luminogens with “free” and “locked” phenyl rings: Understanding of restriction of intramolecular rotation as a cause for aggregation-induced emission

AUTHOR(S)
Anjun Qin; Lam, Jacky W. Y.; Mahtab, Faisal; Jim, Cathy K. W.; Li Tang; Jingzhi Sun; Sung, Herman H. Y.; Williams, Ian D.; Ben Zhong Tang
PUB. DATE
June 2009
SOURCE
Applied Physics Letters;6/22/2009, Vol. 94 Issue 25, p253308
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Nitrogen-containing heterocyclic pyrazine luminogens with “free” (1) and “locked” (2) phenyl rings were readily prepared in high yields. The propeller-shaped luminogen 1 shows aggregation-induced emission feature, whereas the disk-shaped chromophore 2 shows conventional aggregation-caused quenching effect, offering a direct evidence to support our hypothesis that restriction of intramolecular rotation is the main cause for the AIE phenomenon.
ACCESSION #
42642364

 

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