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Formation of supramolecular polymers by chrysene oligomers

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BORIS DOI
10.7892/boris.59499
Date of Publication
September 11, 2014
Publication Type
Conference Item
Division/Institute

Departement für Chemi...

Contributor
Bösch, Caroline
Departement für Chemie und Biochemie (DCB)
Häner, Robertorcid-logo
Departement für Chemie und Biochemie (DCB)
Subject(s)

500 - Science::540 - ...

Language
English
Description
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).
Official URL
https://scg.ch/index.php?option=com_content&view=category&layout=blog&id=489&Itemid=826&lang=en
Handle
https://boris-portal.unibe.ch/handle/20.500.12422/127033
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File(s)
FileFile TypeFormatSizeLicensePublisher/Copright statementContent
PI-031.pdftextAdobe PDF187.48 KBpublishedOpen
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