In this work, benzo-fused 4,5-dihydroazuleno[2,1,8ija]azulenes were expanded through longitudinal ring fusion and transverse incorporation of dithiafulvene donor units. The resulting non-benzenoid π-systems exhibit markedly altered optical and electrochemical properties, including helicene-like characteristics and reversible multi-redox behaviour.
C. Rindom, F. Lirette, J. Ouellette, F. Seljmani, V. B. R. Pedersen, J. Morin and M. B. Nielsen, Chem. Commun., 2026, Accepted Manuscript , DOI: 10.1039/D6CC02835G
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