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## Abstract We report the synthesis of phenylβcapped oligothiophenes __via__ improved synthetic schemes. These schemes are based on the Grignard coupling reaction and enable us to obtain the target compounds at high yields. The resulting materials have been fully characterized through nmr and ir sp
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## Synthesis and Characterization of Mixed Oligoheterocycles Based on End-Capped Oligothiophenes. -The new oligoheterocycles (Ib)-(If) are prepared. Their absorption and emission maxima, fluorescence quantum yields, optical energy gaps and redox potentials are determined and compared to the data