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Fluorescein-bridged Perylene Bisimide Dimer for Use as Liquid Crystal: Studies on Mesomorphic and Fluorescence Properties
- Source :
- Journal of Fluorescence. 31:1555-1565
- Publication Year :
- 2021
- Publisher :
- Springer Science and Business Media LLC, 2021.
-
Abstract
- A novel fluorescein-bridged perylene bisimide (PBI) dimer for liquid crystal (LC) with geometrically symmetric structure was developed. The mesomorphic results indicated that the energetically stable and unstable conformers of fluorescein fragments could lead to the transformation of mesophases from a hexagonal columnar mesophase to an uncertain phase at 136.9 °C in heating, whilst a stable hexagonal columnar mesophase maintained between 175.6 °C and 58.6 °C in cooling. The selectively excited fluorescence characters in THF solution demonstrated that the fluorescence resonance energy transfer (FRET) effect between fluorescein fragments and PBI unites could provide a means to effectively impose strong fluorescence of the dimeric PBIs modified with suitable chromophore at the N-imide position, which alternatively serves as a platform for the further study of multi-functional PBI-based LCs.
- Subjects :
- Sociology and Political Science
Dimer
Clinical Biochemistry
Mesophase
Chromophore
Biochemistry
Fluorescence
Clinical Psychology
Crystallography
chemistry.chemical_compound
Förster resonance energy transfer
chemistry
Liquid crystal
Law
Conformational isomerism
Spectroscopy
Social Sciences (miscellaneous)
Perylene
Subjects
Details
- ISSN :
- 15734994 and 10530509
- Volume :
- 31
- Database :
- OpenAIRE
- Journal :
- Journal of Fluorescence
- Accession number :
- edsair.doi.dedup.....9518d142db90bd723da368365110e404