| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5264568 | Tetrahedron Letters | 2013 | 5 Pages |
Abstract
A correlation between molecular arrangements and photoluminescence properties of trans-alkoxy-nitrostilbenes with n-alkyl chains was elucidated in their crystalline and liquid-crystalline states. In the former states, alternately stacked acceptor-acceptor assemblies caused fluorescence emission with eight percent quantum yield at maximum, while the donor-acceptor ones with less than one percent. Heat treatment yielded their liquid-crystalline assemblies comprising J-aggregation with yellow emissions. The emissions were red-shifted by about 20-40Â nm as compared with those of their crystalline assemblies. Such temperature-dependent structural changes enable us to tune the emission colors.
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Authors
Chien-Chih Chen, Tomoaki Hinoue, Ichiro Hisaki, Mikiji Miyata, Norimitsu Tohnai,