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Efficient Photoinduced Electron Transfer in a Rigid U-Shaped Tetrad Bearing Terminal Porphyrin and Viologen Units |
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| Authors: | Katrina A Jolliffe Toby D M Bell Kenneth P Ghiggino Steven J Langford Michael N Paddon-Row |
| Abstract: | Apparently solvent-mediated and not through-bond photoinduced electron transfer (ET) takes place from the porphyrin (P) unit to the methylviologen (MV2+) unit in the rigid U-shaped molecules 1 (i.e., kTSET>kTBET; TS=through-solvent, TB=through-bond). The ratio of the rates of charge separation to charge recombination is greater than 1400:1. |
| Keywords: | Cycloadditions Electron transfer Isomerism Porphyrinoids Superexchange |