Tang Shuxuan, Ruan Huapeng, Hu Zhaobo, Zhao Yue, Song You, Wang Xinping
State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China.
Chem Commun (Camb). 2022 Feb 8;58(12):1986-1989. doi: 10.1039/d1cc06904g.
The triptycene-bridged tris(thianthrene) compound 1 was designed and synthesized. Three-electron oxidation of 1 by NO[Al(OC(CF))], followed by crystallization at two different temperatures resulted in the triradical trication salts 2a and 2b respectively, which feature different crystal packing patterns. The triradical trications in 2a and 2b both feature a doublet ground state which can be thermally populated to a quartet state, representing the first examples of cationic main-group triradicals.
设计并合成了三蝶烯桥连的三（噻蒽）化合物1。用NO[Al(OC(CF))]对1进行三电子氧化，随后在两个不同温度下结晶，分别得到了三自由基三阳离子盐2a和2b，它们具有不同的晶体堆积模式。2a和2b中的三自由基三阳离子均具有双重基态，该基态可热激发至四重态，这是阳离子主族三自由基的首例。
