Data di Pubblicazione:
2011
Citazione:
Photophysical and Electrochemical Properties of Thiophene-Based 2-Arylpyridines / C. Coluccini, N. Manfredi, E.H. Calderon, M.M. Salamone, R. Ruffo, D. Roberto, M.G. Lobello, F. De Angelis, A. Abbotto. - In: EUROPEAN JOURNAL OF ORGANIC CHEMISTRY. - ISSN 1434-193X. - 28:28(2011), pp. 5587-5598. [10.1002/ejoc.201100651]
Abstract:
Two families of thiophene-based 2-arylpyridines, in which aryl is phenyl and 2,4-difluorophenyl, have been developed. The pyridine ring of the new compounds is substituted at the 4-position with π-conjugated electron-rich and electron-poor thiophene-based fragments to tune the optical and energetic properties. The high-yielding synthetic access, which consists of two sequential Suzuki coupling reactions, the first of which is completely regioselective, is of wide applicability and allows access to a large variety of derivatives. The absorption/emission and redox features, as well as the HOMO and LUMO energy levels, have been investigated; the results show that the optical and electronic properties can be tuned over a broad range. The diversity of the characteristics may be effectively exploited by using the thiophene-substituted 2-arylpyridines as ligands in cyclometalated sensitizers for dye-sensitized solar cells and other optoelectronic applications.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
C. Coluccini, N. Manfredi, E.H. Calderon, M.M. Salamone, R. Ruffo, D. Roberto, M.G. Lobello, F. De Angelis, A. Abbotto
Link alla scheda completa: