The compound is represented by Formula 1. In the formula 1, R independently represents an alkyl group, an alkoxy group, an alkoxycarbonyl group, an alkylcarbonyl group or an aryl group, X independently represents hydrogen, a halogen, an aryl group or a heteroaromatic ring group, Z independently represents sulfur Or selenium. The compound represented by the formula 1 is excellent in planarity and has a chalcogenophene ring -position, so that conjugate extension is easily possible.
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