Publikation: Photophysics of aminophenyl substituted pyrrolopyrrole cyanines
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Physical Chemistry Chemical Physics. 2012, 14(8), pp. 2921-2928. ISSN 1463-9076. eISSN 1463-9084. Available under: doi: 10.1039/C2CP23330D
Zusammenfassung
A series of novel pyrrolopyrrole cyanines (PPCys) bearing various aminophenyl substituents at the diketopyrrolopyrrole (DPP) core are presented. Compared to their alkoxyphenyl substituted analogues, these dyes feature additional intense electronic transitions of charge-transfer character which give detailed insight into the optical properties of PPCys. The energetic mixing of the involved orbitals has pronounced effects on the absorption and fluorescence behavior. Protonation of the amino function suppresses these effects and leads to a pronounced increase in fluorescence quantum yield. The photophysics of the dyes can be rationalized by means of a simple energy scheme.
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WIKTOROWSKI, Simon, Georg FISCHER, Martin WINTERHALDER, Ewald DALTROZZO, Andreas ZUMBUSCH, 2012. Photophysics of aminophenyl substituted pyrrolopyrrole cyanines. In: Physical Chemistry Chemical Physics. 2012, 14(8), pp. 2921-2928. ISSN 1463-9076. eISSN 1463-9084. Available under: doi: 10.1039/C2CP23330DBibTex
@article{Wiktorowski2012-02-28Photo-21124,
year={2012},
doi={10.1039/C2CP23330D},
title={Photophysics of aminophenyl substituted pyrrolopyrrole cyanines},
number={8},
volume={14},
issn={1463-9076},
journal={Physical Chemistry Chemical Physics},
pages={2921--2928},
author={Wiktorowski, Simon and Fischer, Georg and Winterhalder, Martin and Daltrozzo, Ewald and Zumbusch, Andreas}
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