Photoinduced electron transfer in porphyrin‐quinone cyclophanes, 7. Porphyrin‐quinone cyclophanes with gradually varied acceptor strength: Physical properties related to electron transfer

Autor:	G. Voit, Michael Futscher, Jürgen Weiser, Heinz A. Staab
Rok vydání:	1992
Předmět:	Inorganic Chemistry chemistry.chemical_compound Electron transfer chemistry Fluorescence spectrometry Photochemistry Acceptor Porphyrin Redox Photoinduced electron transfer Cyclophane Quinone
Zdroj:	Chemische Berichte
ISSN:	0009-2940
DOI:	10.1002/cber.19921251018
Popis:	Absorption and emission spectra of the doubly quinone‐bridged porphyrin cyclophanes 1–4 with gradually varied acceptor strength as well as of the single‐bridged analogues 5–9 and 10–13 are reported. Reduction and oxidation potentials of these intramolecular porphyrin‐quinone systems have been determined. Based on these data, fluorescence quenching as well as time‐resolved fluorescence lifetime measurements are discussed in terms of photoinduced electron transfer to the charge‐separated zwitterionic state.
Databáze:	OpenAIRE
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