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          Institute: MPI für Polymerforschung     Collection: MPI Polymerforschung     Display Documents



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ID: 59872.0, MPI für Polymerforschung / MPI Polymerforschung
Generation dependent singlet-singlet annihilation within multichromophoric dendrimers studied by polychromatic transient absorption
Authors:Jordens, S.; De Belder, G.; Lor, M.; Schweitzer, G.; Van der Auweraer, M.; Weil, T.; Herrmann, A.; Wiesler, U. M.; Müllen, Klaus; De Schryver, F. C.
Language:English
Date of Publication (YYYY-MM-DD):2003
Title of Journal:Photochemical & Photobiological Sciences
Journal Abbrev.:Photochem. Photobiol. Sci.
Volume:2
Issue / Number:11
Start Page:1118
End Page:1124
Review Status:not specified
Audience:Not Specified
Abstract / Description:Intramolecular kinetic processes in a series of shape- persistent meta- and para- substituted polyphenylene dendrimers bearing different peryleneimide chromophores at the rim have been investigated using time- resolved polychromatic transient absorption measurements. The influence of the generation number and different substitution patterns upon these processes was revealed by comparing different compounds. In particular, in multichromophoric systems a singlet - singlet annihilation process was detected. The corresponding time constant was dependent on the generation number.
External Publication Status:published
Document Type:Article
Affiliations:MPI für Polymerforschung
External Affiliations:Katholieke Univ Leuven, Dept Chem, Celestijnenlaan 200 F, B-3001 Heverlee, Belgium.
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