作者:Peng Gao、Don Cho、Xiaoyin Yang、Volker Enkelmann、Martin Baumgarten、Klaus Müllen
DOI:10.1002/chem.200903562
日期:——
over their hydrocarbon counterparts. The analysis of the experimental results from UV/Vis absorption/photoluminescence (PL) spectroscopy and cyclic voltammetry were combined with DFT quantum‐chemical calculations and compared with other model heteroheptacenes. The results suggest that among the acenes with the same number of fused rings, the thiophene ring fusion inside the skeleton stabilizes both HOMO
报道了使用由超强酸诱导的亲电偶联反应制备共轭杂庚烯的方法。含有噻吩和/或吡咯环的新分子是双苯并[ b,b' ]噻二噻吩并[3,2- b:2',3'- d ]吡咯,双苯并[ b,b' ]噻吩并环戊[2,1- b ] :3,4‐ b' ]二噻吩和双歧[3,2‐ b ] thieno [2,3‐ f:5,4‐ f' ]咔唑。Dithieno [3,2‐ b:2′,3′‐ d ]吡咯,环戊a [2,1‐ b:3,4‐ b′]二噻吩和咔唑用作芳族核。这种多功能性使人们可以接近具有系统可控的物理化学性质的分子。X射线单晶分析表明,烷基取代基的类型和位置显着改变了新分子的堆积特性。异庚炔的光学和光电性质根据硫或氮键的数量和位置而有很大不同,并且显示出比其烃对应物更高的环境稳定性。将来自UV / Vis吸收/光致发光(PL)光谱和循环伏安法的实验结果分析与DFT量子化学计算相结合,并与其他模型异庚炔进行了