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本文用X射线光电子能谱(xps)及红外光谱对四氯化锡催化聚丙烯腈分子内氰基关环反应的机理进行了研究,通过氰基中氮原子和四氯化锡中锡原子的结合能变化及在红外光谱中观察到N→Sn配位健的形成,认为该反应是络合催化反应。
In this paper, X-ray photoelectron spectroscopy (XPS) and infrared spectroscopy were used to study the mechanism of cyano-ring-closure reaction of tin tetrachloride catalyzed by polyacrylonitrile. Through the reaction of nitrogen atom in cyano group and tin atom in tin tetrachloride The binding energies were changed and the formation of N → Sn coordination bonds was observed in the infrared spectrum. The reaction was considered to be a complex catalysis reaction.