Fullerenes (C60) versus heteroazafullerenes (C59N); a photophysical comparison of their monoadducts and hexaadducts

Fullerenes (C60) versus heteroazafullerenes (C59N); a photophysical comparison of their... The singlet and triplet excited state properties of a series of fullerene derivatives (C60) are compared to those of the corresponding heteroazafullerenes derivatives (C59N) by employing a variety of steady-state and time-resolved photophysical assays. The most far-reaching results infer that the C59N (2, 5) analogous of C60 (1, 4) are characterized by shorter singlet lifetimes (1.01/0.57 ns versus 1.80/1.75 ns) and weaker fluorescence quantum yields (1.6 × 10-4/2.1 × 10-4 versus 6.0 × 10-4/1.09 × 10-3). This general conclusion applies for the monoadduct series (1, 2) and also for the highly functionalized hexaadducts (4, 5). Similarly, higher singlet energies (1.89 eV (4) versus 1.79 eV (1)) come together with higher fluorescence quantum yields for the hexaadducts than for the monoadducts. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Fullerenes (C60) versus heteroazafullerenes (C59N); a photophysical comparison of their monoadducts and hexaadducts

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Publisher
Brill Academic Publishers
Copyright
Copyright © 2002 by VSP 2002
Subject
Chemistry; Inorganic Chemistry; Physical Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1163/15685670260469438
Publisher site
See Article on Publisher Site

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