comprising varying sequences of heteroatoms were fully characterized by NMR, high-resolution mass spectrometry, UV–vis and fluorescence spectroscopy, and cyclic voltammetry. Furthermore, stable radical cations and dications were formed by controlled oxidation of the heteroacenes and optically characterized. Valuable structure–property relationships concerning the optoelectronic properties were deduced.
在此,描述了从八聚体到十三聚体的扩展的π共轭梯形S,N-杂并
十六烷的合成及其物理性质。根据先前对该家族较短成员的研究结果,我们进一步将S,N-杂并苯系列中的带环
噻吩环和
吡咯环的数目扩展至13个。实现杂并苯骨架的合成策略包括通过过渡
金属-催化C–S和C–N偶联/环化反应,分别导致稠合的
噻吩或
吡咯环。扩展S,NNMR,高分辨率质谱,UV-vis和荧光光谱以及循环伏安法充分表征了包含杂原子序列不同的杂
芳烃。此外,通过杂烯的受控氧化形成稳定的自由基阳离子和阳离子,并对其进行光学表征。推论了与光电子性质有关的宝贵的结构-性质关系。