Abstract
A simple oxidative cyclization reaction was used to construct new seven-ring-fused butterfly-shaped oligothiophene backbone: dibenzothieno[1,2- b:4,3- b′:6,7- b″:9,8- b″′]tetrathiophene. The new materials show high stability and strong solid state fluorescence. X-ray crystallography results reveal that they exist in 2-D stacked structures in their crystals.
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