Synfacts 2016; 12(4): 0357
DOI: 10.1055/s-0035-1561924
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart · New York

A Super Electron Deficient Polymer

Contributor(s): Timothy M. Swager, Qifan Zhang
Deng Y, Sun B, He Y, Quinn J, Guo C, Li Y * University of Waterloo, Canada
Thiophene-S,S-dioxidized Indophenine: A Quinoid-Type Building Block with High Electron Affinity for Constructing n-Type Polymer Semiconductors with Narrow Band Gaps.

Angew. Chem. Int. Ed. 2016;
55: 3459-3462
Further Information

Publication History

Publication Date:
15 March 2016 (online)

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The authors report 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 cm2V–1s–1).



Compound 2 is oxidized without separation of the six isomers (2af). The resulting three isomers (3ac) 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.


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