Abstract
Two low molecular weight electroactive donor–acceptor–donor (DAD)-type molecules are reported, namely naphthalene bisimide (NBI) symmetrically core-functionalized with dithienopyrrole (NBI-(DTP)2) and an asymmetric core-functionalized naphthalene bisimide with dithienopyrrole (DTP) substituent on one side and 2-ethylhexylamine on the other side (NBI-DTP-NHEtHex). Both compounds are characterized by low optical bandgaps (1.52 and 1.65 eV, respectively). NBI-(DTP)2undergoes oxidative electropolymerization giving the electroactive polymer of ambipolar character. Its two-step reversible reduction and oxidation is corroborated by complementary EPR and UV/Vis–NIR spectroelectrochemical investigations. The polymer turned out to be electrochemically active not only in aprotic solvents but also in aqueous electrolytes, showing a distinct photocathodic current attributed to proton reduction. Additionally, poly(NBI-(DTP)2) was successfully tested as a photodiode material.
| Original language | English |
|---|---|
| Pages (from-to) | 2839-2851 |
| Number of pages | 13 |
| Journal | Chemistry - A European Journal |
| Volume | 23 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 24 Feb 2017 |
Keywords
- dithienopyrrole
- electrochemistry
- naphthalene bisimide
- photodiode
- polymerization
ASJC Scopus subject areas
- Catalysis
- General Chemistry
- Organic Chemistry
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