Excimer formation in a new class of terthiophene-based fluorophores covalently bonded to a cyclotetrasiloxane scaffold has been demonstrated and the photophysical process ruling it has been investigated in detail and modeled theoretically. In contrast to the conventional systems in which long-living fluorophores such as pyrene are linked in the same molecule, an excimer is formed only when two terthio-phene-based branches nano-organized on the same cyclotetrasiloxane scaffold are close enough together when excitation takes place. In such a case, excimer formation is extremely efficient, and the new bound excited states are quite stable. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.

Mroz, W., Bombenger, J., Botta, C., Orbelli Biroli, A., Pizzotti, M., De Angelis, F., et al. (2009). Oligothiophenes nano-organized on a cyclotetrasiloxane scaffold as a model of a silica-bound monolayer: Evidence for intramolecular excimer formation. CHEMISTRY-A EUROPEAN JOURNAL, 15(46), 12791-12798 [10.1002/chem.200901307].

Oligothiophenes nano-organized on a cyclotetrasiloxane scaffold as a model of a silica-bound monolayer: Evidence for intramolecular excimer formation

TUBINO, RICCARDO;MEINARDI, FRANCESCO
2009

Abstract

Excimer formation in a new class of terthiophene-based fluorophores covalently bonded to a cyclotetrasiloxane scaffold has been demonstrated and the photophysical process ruling it has been investigated in detail and modeled theoretically. In contrast to the conventional systems in which long-living fluorophores such as pyrene are linked in the same molecule, an excimer is formed only when two terthio-phene-based branches nano-organized on the same cyclotetrasiloxane scaffold are close enough together when excitation takes place. In such a case, excimer formation is extremely efficient, and the new bound excited states are quite stable. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
Articolo in rivista - Articolo scientifico
Excimer, oligothiophene, scaffold
English
2009
15
46
12791
12798
none
Mroz, W., Bombenger, J., Botta, C., Orbelli Biroli, A., Pizzotti, M., De Angelis, F., et al. (2009). Oligothiophenes nano-organized on a cyclotetrasiloxane scaffold as a model of a silica-bound monolayer: Evidence for intramolecular excimer formation. CHEMISTRY-A EUROPEAN JOURNAL, 15(46), 12791-12798 [10.1002/chem.200901307].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/7493
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