Long-lived Charge Separated States from Zinc Porphyrin-Free Base Porphyrin-Diimide-Quinone Tetrads
- 1 October 1993
- journal article
- research article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 22 (10) , 1727-1730
- https://doi.org/10.1246/cl.1993.1727
Abstract
Tetrads consisting of zinc porphyrin (ZnP), free base porphyrin (H2P), naphthalene-1,4,5,8-tetracarboxylic diimide (NIm), and quinone (Q) were synthesized. Upon photoexcitation, these tetrads provide ion pair states (ZnP)+-H2P-NIm-(Q)−, whose lifetimes are much longer, reaching more than 100 μs in THF-butyronitrile, in biphenyl-bridged models but shorter in diphenylmethyl-bridged models in comparison to the corresponding Q-free triads.Keywords
This publication has 8 references indexed in Scilit:
- Introduction of a Trp residue into .alpha.4 as a probe of dynamicsJournal of the American Chemical Society, 1993
- Molecular mimicry of photosynthetic energy and electron transferAccounts of Chemical Research, 1993
- Long-lived charge separated states from distance fixed triads consisting of zinc porphyrin, free-base porphyrin, and pyromellitimideChemical Physics Letters, 1992
- Photoinduced electron transfer in supramolecular systems for artificial photosynthesisChemical Reviews, 1992
- Efficient Multistep Photoinitiated Electron Transfer in a Molecular PentadScience, 1990
- A chemical approach toward photosynthetic reaction centerPure and Applied Chemistry, 1990
- Mimicking PhotosynthesisScience, 1989
- High-quantum-yield long-lived charge separation in a photosynthetic reaction center modelJournal of the American Chemical Society, 1985