Novel Spiro-Configured PET Chromophores Incorporating 4,5-Diazafluorene Moiety as an Electron Acceptor

Autor: Ken-Tsung Wong, Fu-Chuan Fang, Hsiao-Fan Chen
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