Bösch, Caroline; Häner, Robert (11 September 2014). Formation of supramolecular polymers by chrysene oligomers. In: Swiss Chemical Society Fall Meeting 2014. University of Zurich. 11.09.2014.
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Supramolecular assembly of π-conjugated systems is of large interested due to the possibility to use them in electronic devices.[1] Chrysene is a polyaromatic hydrocarbon which has been studied e.g for organic light-emitting diodes (OLEDs).[2] In continuation of our previous work involving the supramolecular polymerisation of pyrene oligomers [3] an oligomer consisting of three chrysenes linked by phophodiesters was synthesised (Chry3).
UV-Vis measurements show that aggregates of Chry3 are formed in aqueous medium. This is illustrated by general hypochromicity, a change in vibronic band intensities and, in particular, the appearance of a red-shifted absorption band in the S0 → S2 transition. The data suggest the formation of J-aggregates. The formation of supramolecular polymers is further studied by temperature-dependent absorption- and fluorescence measurements, and by atomic force microscopy (AFM).
Item Type: |
Conference or Workshop Item (Poster) |
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Division/Institute: |
08 Faculty of Science > Department of Chemistry, Biochemistry and Pharmaceutical Sciences (DCBP) |
UniBE Contributor: |
Bösch, Caroline, Häner, Robert |
Subjects: |
500 Science > 540 Chemistry |
Language: |
English |
Submitter: |
Caroline Bösch |
Date Deposited: |
23 Oct 2014 17:20 |
Last Modified: |
05 Dec 2022 14:37 |
BORIS DOI: |
10.7892/boris.59499 |
URI: |
https://boris.unibe.ch/id/eprint/59499 |
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