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设计合成了以高价态环状三亚氨基磷腈为阴离子、烷基咪唑为阳离子的1-乙基-3-甲基咪唑三亚氨基磷腈等五种新型离子液体。运用FT IR、1 H NMR和31P NMR确定了它们的组成和结构,并进行了相转变温度、热稳定性、电导率和溶解性的测试。结果显示,这类高价态的离子液体在室温下呈液态,分解温度为210℃,电导率的变化范围是0.002~10.4mS/cm。这类离子液体是目前文献报道的相转变温度最低的高价离子液体。
Five novel ionic liquids, such as 1-ethyl-3-methylimidazolium tri-iminophosphazene with high valent cyclic trimer aminophosphazene as anion and alkylimidazole as cation, were designed and synthesized. Their compositions and structures were confirmed by FT IR, 1 H NMR and 31 P NMR. The phase transition temperature, thermal stability, conductivity and solubility were also tested. The results show that the high valence ionic liquid is liquid at room temperature, the decomposition temperature is 210 ℃, the conductivity of the range of 0.002 ~ 10.4mS / cm. This type of ionic liquid is currently reported in the literature as the lowest phase transition temperature high ionic liquid.