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Deng Y, Sun B, He Y, Quinn J, Guo C, Li Y * University of Waterloo, Canada
Angew. Chem. Int. Ed. 2016;55:3459-3462
This the synthesis of a thiophene-S,S-dioxidized indophenine-containing conjugated polymer PIDTOTT. This polymer exhibits unipolar n-type semiconductor characteristics with exceptionally high electron mobility (up to 0.14 cm2 V–1 s–1).
Compound 2 is oxidized without separation of the six isomers (2a–f). The resulting three isomers (3a–c) could convert into the most stable isomer 3a by heating at 110 °C. This study provides an efficient way of making conjugated polymers with high electron affinity.