己基取代的1,4-二(2-噻吩基)苯并[c]哒嗪合成与光谱性质研究

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.

Synthesis and Spectroscopic Properties of 1,4-di(thiophen-2-yl) phthalazines

Organic conjugated molecules comprising 2,3-benzopyridiazine as electron-withdrawing core and thiophene derivatives as electron-donating arms, have been successfully synthesized in good yields. The spectroscopic properties of these molecules exhibited that introduction of the alkyl chains at different positions of the thiophene moieties, can effectively tune the band gap of the conjugated molecule. These preliminary results could be definitely helpful for establishing the structure-property correlation of the family of the conjugated molecules.