Persulfurated p-phenylene sulfide (PPS) molecular asterisks (6-9) from "generations" 1 to 4 were efficiently prepared. They represent a new class of electron-accepting PPS star-shapednanomolecules. Spectroelectrochemistry, cyclic voltammetry and UV-visible studies were performed for the asterisks and for functionalized p-phenylene sulfide oligomers (1-4). These data confirmed for the first time that
We report the first synthesis of a persulfurated polycyclic aromatic hydrocarbon (PAH) as a next-generation "sulflower." In this novel PAH, disulfide units establish an all-sulfur periphery around a coronene core. The structure, electronic properties, and redox behavior were investigated by microscopic, spectroscopic and electrochemical methods and supported by density functional theory. The sulfur-rich
我们报告了作为下一代“硫磺”的过硫化多环芳烃 (PAH) 的首次合成。在这种新型 PAH 中,二硫化物单元在晕苯核心周围建立了一个全硫外围。通过显微、光谱和电化学方法研究了结构、电子性质和氧化还原行为,并得到了密度泛函理论的支持。过硫酸化晕苯的富硫特性使其成为一种很有前途的锂硫电池正极材料,在 0.6 C 下循环 120 次后显示出 520 mAh g-1 的高容量和 90% 的高容量保持率。