【摘要】 用 XPS表征 2 -芳胺基 -1 ,3,4 -噻二唑 -5-硫酮 (1 )在ω-溴代 -ω-(1 H-1 ,2 ,4 -三唑 ) -苯乙酮诱导下生成的2 -芳胺基 -3H-1 ,3,4 -噻二唑 -5-硫醇类介离子化合物 (4 ) .结果表明 ,化合物 4分子中的 C1 s,N1 s,S2 p电子结合能均高于化合物 1 ,尤其以 N1 s,S2 p结合能谱最为特征 .例如在含 3个氮原子的化合物 4中由于噻二唑环的两个氮环境不同 ,故产生 3个峰 ,而在与其结构相近的对照物 1中 ,由于噻二唑环的两个氮环境相近 ,故产生 2个峰 .S2 p诸状态结合能加合值化合物 4均大于化合物 1 ,在化合物 4中均是杂环内硫大于杂环外硫更多还原

【Abstract】 The structures of 2 arylamino 1,3,4 thiadiazolium 5 thiolates(4) were confirmed by X ray photoelectron spectra. The meso ionic were prepared from 2 arylamino 1,3,4 thiadiazol 5 thiones by using \{ω bromo \} ω (1H 1,2,4 triazol 1 yl)acetophenone(2). The results showed that the binding energies of C 1 s , N 1 s , and S 2 p in meso ionic 4 are greater than those in the correspondence compounds 1, which were more obvious in N 1 s and S 2 p . For example, N 1 s showed three signals in mesoionic 4 and only two signals and in compounds 1 because the chemical environment of thiadiazole rings two nitrogen atoms are different in 4 and same in 1. Furthermore, the additive binding energy of S 2 p in ring is greater than the exocyclic one for the same mesoionic 4.更多还原