The incorporation of an electron-accepting unit into π-conjugated systems is an important approach to modulate the physical properties of such molecules. To investigate the potential of tetrazolo[1,5-a]pyridine as an electron-accepting unit, a series of diarylated tetrazolo[1,5-a]pyridine derivatives was synthesized by treating the corresponding diarylated pyridine N-oxide with diphenylphosphoryl azide. Thermogravimetric analyses of these molecules indicated that they possessed good thermal stability. The bithiophene-substituted tetrazolo[1,5-a]pyridine compound showed stable transistor characteristics under repeated bias conditions.

中文翻译：

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含有四唑并[1,5-a]吡啶的π共轭体系：合成、性质和半导体特性

将电子接受单元结合到 π 共轭体系中是调节此类分子物理性质的重要方法。为了研究四唑并[1,5 - a ]吡啶作为电子接受单元的潜力，通过用二苯基磷酰叠氮化物处理相应的二芳基化吡啶N-氧化物，合成了一系列二芳基化四唑并[1,5- a ]吡啶衍生物。这些分子的热重分析表明它们具有良好的热稳定性。噻吩取代的四唑并[1,5- a ]吡啶化合物在重复偏压条件下表现出稳定的晶体管特性。