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Electrochemical polymerization of pyrrole–perimidine hybrids : low-bandgap materials with high n-doping activity.
Autorzy
Rok wydania
2020
Czasopismo
Journal of Physical Chemistry C
Numer woluminu
124
Strony
14350-14362
DOI
10.1021/acs.jpcc.0c03002
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Conductive π-conjugated polymers were electrochemically generated from a variety of donor–acceptor pyrroles containing fused perimidine subunits. Alternating oxidative and reductive polarization of these precursors induces multi-directional coupling involving both perimidine and acenaphtho[1,2-c]pyrrole moieties, producing cross-linked polymeric structures. Chemical oxidation experiments and computational analyses of spin densities in the charged pyrrole intermediates indicate that the formation of inter-perimidine linkages occurs prior to pyrrole–pyrrole couplings. In the resulting polymers, a very stable dication state is achievable with the positive charge located on the bis-perimidine linker. These polymers do not show any stable neutral state and can be easily reduced. Cationic and anionic states of these electrogenerated films were investigated in the solid-state by UV-vis-NIR and EPR spectroelectrochemistry, assisted by DFT calculations.
Słowa kluczowe
Redox reactions, Monomers, Electrodes, Oxidation, Polymers
Licencja otwartego dostępu
Licencja na prawach której można swobodnie kopiować, rozprowadzać, zmieniać i remiksować objęty prawem autorskim utwór (Utwór-przedmiot prawa autorskiego) pod warunkiem podania imienia i nazwiska autora utworu pierwotnego oraz źródła pochodzenia utworu.
Pełny tekst licencji: https://creativecommons.org/licenses/by/3.0/pl/legalcode
Adres publiczny
http://dx.doi.org/10.1021/acs.jpcc.0c03002
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