Novel Spiro-Configured PET Chromophores Incorporating 4,5-Diazafluorene Moiety as an Electron Acceptor
Autor: | Ken-Tsung Wong, Fu-Chuan Fang, Hsiao-Fan Chen |
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Rok vydání: | 2006 |
Předmět: | |
Zdroj: | Organic Letters. 8:3501-3504 |
ISSN: | 1523-7052 1523-7060 |
DOI: | 10.1021/ol061227n |
Popis: | [reaction: see text] We have synthesized novel spiro-bridged chromophores incorporating a 4,5-diazafluorene unit as the electron acceptor (A) and aryl amino groups as donor (D) moieties. The orthogonal D-A configuration limits ground-state D-A interactions but allows efficient PET reactions. The PET efficiency was modulated by the electronic characteristics of the donor and by the D-A distance. Preliminary studies showed that the PET process can be manipulated through metal ion complexation of the 4,5-diazafluorene moiety. |
Databáze: | OpenAIRE |
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