Bigger and Brighter Fluorenes: Facile π-Expansion, Brilliant Emission and Sensing of Nitroaromatics
In: Chemistry - An Asian Journal, Jg. 12 (2016-12-14), S. 181-189
Online
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Zugriff:
π-Expanded butterfly-like 2D fluorenes and 3D spirobifluorenes 1-5 were synthesized via a DDQ-mediated oxidative cyclization strategy with a high regioselectivity. Through structural modification via π-expansion, it was possible to achieve near-ultraviolet absorption, bright-blue emission, very high near-unity fluorescence quantum yields in solution as well as in film states, and deep-lying HOMO energy levels with excellent thermal stabilities. Furthermore, these electron-rich compounds displayed a notable behavior towards sensing of nitroaromatic explosives, such as picric acid, up to a detection limit of 0.2 ppb.
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Bigger and Brighter Fluorenes: Facile π-Expansion, Brilliant Emission and Sensing of Nitroaromatics
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Autor/in / Beteiligte Person: | Ramakrishna, Jagarapu ; Venkatakrishnan, Parthasarathy |
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Zeitschrift: | Chemistry - An Asian Journal, Jg. 12 (2016-12-14), S. 181-189 |
Veröffentlichung: | Wiley, 2016 |
Medientyp: | unknown |
ISSN: | 1861-4728 (print) |
DOI: | 10.1002/asia.201601359 |
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