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Issue 22, 2012
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Conformational dynamics of di-(perylene bisimide acrylate) and its footprints in steady-state, time-resolved, and fluorescence-correlation spectroscopy

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Abstract

Employing steady-state spectroscopy, time-resolved fluorescence spectroscopy, and fluorescence (cross-) correlation spectroscopy we investigated di-(perylene bisimide acrylate) and compared the results with those from monomeric perylene bisimide acrylate. For the dimeric structure two emitting species were found. By comparison with the spectroscopic results from monomeric perylene bisimide one species was assigned to perylene moieties in an isolated, unstacked conformation, whereas the other species is attributed to aggregated π-stacked perylene moieties. The transition dynamics between these conformations was uncovered by fluorescence (cross) correlation spectroscopy. A consistent description of the various correlation curves is derived for a dynamic model that considers an additional non-fluorescent dark state that is associated exclusively with the aggregated species.

Graphical abstract: Conformational dynamics of di-(perylene bisimide acrylate) and its footprints in steady-state, time-resolved, and fluorescence-correlation spectroscopy

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Supplementary files

Article information


Submitted
08 Feb 2012
Accepted
12 Apr 2012
First published
27 Apr 2012

Phys. Chem. Chem. Phys., 2012,14, 7971-7980
Article type
Paper

Conformational dynamics of di-(perylene bisimide acrylate) and its footprints in steady-state, time-resolved, and fluorescence-correlation spectroscopy

F. Spreitler, M. Sommer, M. Thelakkat and J. Köhler, Phys. Chem. Chem. Phys., 2012, 14, 7971 DOI: 10.1039/C2CP40387K

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