Abstract
The synthesis of three novel pyrazolo[60]fullerene derivatives containing electron-withdrawing substituents has been described. High solubility in ordinary organic solvents was proved. Their electrochemical properties of pyrazolo-[60]fullerenes showed better electron affinity than pristine C 60 in the ground state. The nanosecond transient absorption spectra showed clear evidence for photoinduced electron transfer from TTF to the excited triplet state of the pyrazolo-[60]fullerenes, in which stronger electron-withdrawing substituents accelerate the rates of the photoinduced electron-transfer, indicating a high electron-acceptor ability of the excited triplet state of pyrazolo[60]fullerenes.
Original language | English |
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Pages (from-to) | 1500-1507 |
Number of pages | 8 |
Journal | Bulletin of the Chemical Society of Japan |
Volume | 78 |
Issue number | 8 |
DOIs | |
Publication status | Published - 2005 Aug 15 |
ASJC Scopus subject areas
- Chemistry(all)