本文设计并合成了一系列含氮原子的缺电子芳香片段,包括以苯并哒嗪作为核心、以富电子噻吩衍生物作为共轭延长链的有机共轭小分子1,4-二(2-噻吩基)苯并[c]哒嗪(5a)、1,4-二[2-(3-己基噻吩基)]苯并[c]哒嗪(5b)和1,4-二[2-(5-己基噻吩基)]苯并[c]哒嗪(5c).通过紫外光谱和荧光光谱研究,证明在共轭体系中的不同位置引入烷基链,可以有效影响化合物的能隙,调节化合物的光电性质.
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