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Highly fluorescent intramolecular dimmers of two pyrenyl-substituted fluorenes bridged by 1,6-hexanyl: synthesis, spectroscopic, and self-organized properties
- Source :
-
Tetrahedron Letters: International Organ for the Rapid Publication of Preliminary Communications in Organic Chemistry . Mar2010, Vol. 51 Issue 9, p1317-1321. 5p. - Publication Year :
- 2010
-
Abstract
- Abstract: Two intramolecular dimmers of 4-, 8-pyrenyl-substituted fluorenes bridged by 1,6-hexanyl unit have been synthesized. They showed very strong fluorescent emission with the emission peak at around 450nm and fluorescence efficiency as high as ∼0.9. The absorption spectra also had high extinction coefficients. The cyclic voltammetric curves showed that they can be used as electron-donating materials. The DSC results suggested the dimmers have higher glass transition temperature. It was also found that these novel dimmers can self-organize into spherical particles from the solutions due to evaporation of the solvent. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00404039
- Volume :
- 51
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Tetrahedron Letters: International Organ for the Rapid Publication of Preliminary Communications in Organic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 47824459
- Full Text :
- https://doi.org/10.1016/j.tetlet.2009.12.136