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Synthesis and electronic properties of oxidized benzo[1,2-b:4,5-b']dithiophenes
Ted M Pappenfus1, Daniel T Seidenkranz, Matthew D Lovander
1Division of Science and Mathematics, University of Minnesota , Morris, Minnesota 56267, United States.
Abstract:
Benzo[1,2-b:4,5-b']dithiophenes were oxidized under mild conditions with m-CPBA to yield the corresponding bis-sulfones (or tetraoxides). These sulfones possess red-shifted absorption and emission spectra relative to the parent molecules. Electrochemical analyses reveal that the benzodithiophene molecules are transformed from electron donors to electron acceptors.
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