Stabilization of charge separation in a zinc porphyrin-viologen-quinone triad
✍ Scribed by E. E. Batova; P. P. Levin; V. Ya. Shafirovich
- Book ID
- 112449473
- Publisher
- Springer
- Year
- 1990
- Tongue
- English
- Weight
- 431 KB
- Volume
- 39
- Category
- Article
- ISSN
- 1573-9171
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We present time-resolved fluorescence decay measurements on a cylophane-bridged donor-acceptor triad containing a porphyrin and two different quinones in the order porphyrin-quinone,-quinone2. The time scale of photoinduced electron transfer, as well as its energetics, suggests a strong analogy with
Photwxcitation of distance restricted triads consisting of zinc porphyrin (ZnP), free-base porphyrin (HP), and pyromellitimide (Im) at 532 urn in THF at room temperature led to long-lived charge separated states (ZnP)+-H2P-(Im)-with a lifetime of 0.16-80 ps via electron transfer from the ' (H2P)\* t