Intramolecular Photoinduced Electron Transfer in Pyromellitimide-linked Porphyrins
- 1 June 1991
- journal article
- research article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 20 (6), 1003-1006
- https://doi.org/10.1246/cl.1991.1003
Abstract
Characteristic absorption of the anion radical of pyromellitimide around 715 nm was demonstrated to be particularly useful for studies on photoinduced electron transfer reactions. Charge recombination in pyromellitimide-linked porphyrin was greatly retarded in benzene due to the large energy gap and small reorganization energy. A long-lived charge separated state (τ = 2.5 μs) was formed in the case of a diporphyrin-porphyrin-pyromellitimide triad system.Keywords
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