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Sarah Bay, Dipl.-Chem. Torben Villnow, Dipl.-Phys. Gerald Ryseck, Dr. Vidisha Rai-Constapel, Prof. Dr. Peter Gilch and Prof. Dr. Thomas J. J. Müller The Ugi Four-Component Reaction Route to Photoinducible Electron-Transfer Systems ChemPlusChem 78

Version of Record online: 18 DEC 2012 | DOI: 10.1002/cplu.201200279

Thumbnail image of graphical abstract

Easy as pi: The Ugi four-component reaction (4CR) gives access to a functional π system consisting of an electron donor and an electron acceptor (see figure; PT=phenothiazine, AQ=9,10-anthraquinone). Intramolecular photoinduced electron transfer generates charge-separated diradical ion pairs originating from the singlet and triplet excited states. Charge separation in the triplet species persists for more than 2 ns.

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