Photoinduced Electron Transfer in Covalently Linked Oxomolybdenum(V) Porphyrin Systems
β Scribed by Wall,, Mark H.; Basu, Partha; Buranda, Tione; Wicks, Bryan S.; Findsen, Eric W.; Ondrias, Mark; Enemark, John H.; Kirk, Martin L.
- Book ID
- 126995989
- Publisher
- American Chemical Society
- Year
- 1997
- Tongue
- English
- Weight
- 136 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0020-1669
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π SIMILAR VOLUMES
Steady-state fluorescence, lifetime measurements and time-resolved absorption spectra of the covalentty linked heterc dimers consisting of pheophorbide and porphyrin revealed rapid ( 1011-10'2 s-' ) and efficient singlet-singlet excitation energy transfer from porphyrin unit to pheophorbide.
Compounds containing a viologen linked to a porphyrin via a number (n = 3 -6) of methylene groups were synthesized. Photoinduced long-range electron transfer between the porphyrin and the viologen is observed. The photoexcited singlet state of the porphyrin is quenched by the viologen in the viologe