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Titolo:
Photoinduced electron transfer within porphyrin-containing poly(amide) dendrimers
Autore:
Capitosti, GJ; Cramer, SJ; Rajesh, CS; Modarelli, DA;
Indirizzi:
Univ Akron, Dept Chem, Akron, OH 44325 USA Univ Akron Akron OH USA 44325Univ Akron, Dept Chem, Akron, OH 44325 USA Univ Akron, Ctr Laser & Opt Spect, Knight Chem Lab, Akron, OH 44325 USA Univ Akron Akron OH USA 44325 Spect, Knight Chem Lab, Akron, OH 44325 USA
Titolo Testata:
ORGANIC LETTERS
fascicolo: 11, volume: 3, anno: 2001,
pagine: 1645 - 1648
SICI:
1523-7060(20010531)3:11<1645:PETWPP>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
PHOTOSYNTHETIC REACTION-CENTER; ENERGY-TRANSFER; ARTIFICIAL PHOTOSYNTHESIS; MOLECULAR-DYNAMICS; CHARGE SEPARATION; SINGLET; MODEL; COMPLEXES; POLYMERS; STATE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
57
Recensione:
Indirizzi per estratti:
Indirizzo: Modarelli, DA Univ Akron, Dept Chem, Akron, OH 44325 USA Univ Akron AkronOH USA 44325 ept Chem, Akron, OH 44325 USA
Citazione:
G.J. Capitosti et al., "Photoinduced electron transfer within porphyrin-containing poly(amide) dendrimers", ORG LETT, 3(11), 2001, pp. 1645-1648

Abstract

[GRAPHICS]The synthesis and photophysical characterization of a series of free base porphyrin containing polyamide dendrimers terminated with anthraquinone groups (FbP-Ga-AQ(n), a = 1-3, n = 12, 36, 108) are described. Substantial quenching (58-75%) of the porphyrin fluorescence of FbP-Ga-AQ(n) is observed when compared to the analogous ethyl terminated dendrimers (FbP-Ga-Et-n) in steady state fluorescence experiments and is attributed to intramolecular electron transfer. Time resolved fluorescence experiments were fit to 2-3 exponentials, indicating multiple orientations for electron transfer, consistent with the flexible nature of these dendrimers.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/07/20 alle ore 13:38:55