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Title

Red organic light-emitting radical adducts of carbazole and tris(2,4,6-trichlorotriphenyl)methyl radical that exhibit high thermal stability and electrochemical amphotericity

AuthorsVelasco, Dolores; Castellanos, Sonia ; López, Marc; López-Calahorra, Francisco ; Brillas, Enric; Juliá, Lluís
KeywordsLuminiscence
Stable radicals
Cabazole
EPR
Issue Date9-Jul-2007
PublisherAmerican Chemical Society
CitationThe Journal of Organic Chemistry 72(20): 7523-7532 (2007)
AbstractSynthesis and characterization of new carbazolyl derivatives with a pendant stable radical of the TTM (tris-2,4,6-trichlorophenylmethyl radical) series are reported. The EPR spectra, electrochemical properties, absorption spectra, and luminescent properties of these radical adducts have been studied. All of them show electrochemical amphotericity being reduced and oxidized to their corresponding stable charged species. The luminescence properties of them cover the red spectral band of the emission. The luminescence of the electron-rich carbazole adducts shows the donor-acceptor nature of the excited state. On the other hand, the EPR parameters of these radical adducts show an imperceptible variation with the substituents in the carbazole.
Description10 pages, 3 figures.-- PMID: 17824646 [PubMed].
Supprting information (General procedures, Cyclic voltammograms, EPR spectra, DSC analysis, Computational data, 1H NMR spectra and Infrared spectra, 24 pages) available at: http://pubs.acs.org/doi/suppl/10.1021/jo0708846/suppl_file/jo0708846-file002.pdf
Publisher version (URL)http://dx.doi.org/10.1021/jo0708846
URIhttp://hdl.handle.net/10261/9335
DOI10.1021/jo0708846
ISSN1520-6904
Appears in Collections:(IQAC) Artículos
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