Linkage length dependence of intramolecular photoinduced electron transfer reactions in aromatic donor-viologen acceptor molecules linked by polymethylene bridges
Article Abstract:
Research was conducted to examine the intramolecular charge transfer (CD) complex formation and photoinduced electron-transfer reactions in aromatic donor-viologen acceptor dyad systems linked by polymethylene linkage. The effects of Me-beta-CD on steady-state fluorescence intensity and excited-state lifetime were compared. Results suggest that through-space/through-solvent electron transfer is the predominant quenching pathway in the molecules with the linkage shorter than heptamethylene chain.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Direct measurement of the triplet quantum yield of poly(3-dodecylthiophene) in solution
Article Abstract:
The fluorescence quantum efficiency and the internal conversion quantum yield of 0.59 plusmn 0.02, and the intersystem crossing quantum yield of 0.11 plusmn 0.01 are presented. The fluorescence lifetime of ca. 490 ps is measured to estimate the relative lifetime of 1.64 ns for the singlet excitons and nonradiative decay rate constants, for the internal conversion and intersystem crossing.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
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Temperature dependence of photoinduced electron transfer within self-assembled uroporphyrin-cytochrome c complexes
Article Abstract:
An investigation of the temperature dependence of photoinduced electron transfer between both singlet- and triplet-state uroporphyrin and the heme group of ferricytochrome c (Cc) is presented. It appears that uroporphyrin binding to Cc gives a distribution of orientations/conformations.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2000
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