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Published on: October 10, 2018
Exploring Redox States, Doping and Ordering of Electroactive Star-Shaped Oligo(aniline)s
Benjamin M Mills1, Natalie Fey1, Tomasz Marszalek2
1School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK.
Abstract:
We have prepared a simple star-shaped oligo(aniline) (TDPB) and characterised it in detail by MALDI-TOF MS, UV/Vis/NIR spectroscopy, time-dependent DFT, cyclic voltammetry and EPR spectroscopy. TDPB is part of an underdeveloped class of π-conjugated molecules with great potential for organic electronics, display and sensor applications. It is redox active and reacts with acids to form radical cations. Acid-doped TDPB shows behaviour similar to discotic liquid crystals, with X-ray scattering investigations revealing columnar self-assembled arrays. The combination of unpaired electrons and supramolecular stacking suggests that star-shaped oligo(aniline)s like TDPB have the potential to form conducting nanowires and organic magnetic materials.
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