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Martin Berberich, Mirco Natali, Peter Spenst, Dr. Claudio Chiorboli, Prof. Dr. Franco Scandola and Prof. Dr. Frank Würthner Nondestructive Photoluminescence Read-Out by Intramolecular Electron Transfer in a Perylene Bisimide-Diarylethene Dyad Chemistry - A European Journal 18

Version of Record online: 11 SEP 2012 | DOI: 10.1002/chem.201201484

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Tuning fluorescence: A novel, highly stable, photochromic dyad based on a perylene bisimide fluorophore and a diarylethene photochrome was synthesized and its optical and photophysical properties were studied in detail by steady-state and time-resolved ultrafast spectroscopy (see figure; o=open form, c= closed form). Solvent-dependent fluorescence studies revealed that the emission of the ring-closed form is drastically quenched in solvents of medium-to-high polarities.

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