ヘテロポリ酸触媒の擬液相挙動と超強酸性の総括的定式化

综合运用瞬态响应法、核磁共振、红外光谱等方法，阐明了杂多酸催化剂的重要特性--“拟液相”（本课题组发现）。(1)Dawson-We杂多酸对合成甲基叔丁基醚具有很高的催化活性，这是由于聚阴离子的蚀形形成了活性假液相。(2)用固体核磁共振（NMR）、氢核磁共振（H NMR）、核磁共振氢谱（O-NMR）和红外光谱（IR）等方法研究了12-钨磷酸假液相中酸性质子的状态和动力学行为，并通过核磁共振谱的温度依赖性证明了酸性质子的高迁移率。(3)用红外光谱法测定了酸性铯盐的表面酸性，并与催化活性进行了相关性分析。

The important chaeacteristics of heteropolyacid catalysts, ''pseudoliquid behavior'' (found by this research group), was elucidated by applying comprehensively transient-response method, NMR, IR, etc.(1) The very high catalytic activity of a Dawson-We heteropolyacid for the synthesis of methyl t-butyl ether was demonstrated to be due to the formation of an active pseudoliquid phase brought about by the eclipse shape of polyanion.(2) The states and dynamic behavior of acidic protons in the pseudoliquid phase of 12-tungstophosphoric acid were clarified by solid-state P, H, O-NMR and IR. High mobility of acidic proton was shown by the temperature dependency of P-NMR spectra.(3) The surface acidity of active acidic cesium salts was directly quantitized by IR observation of adsorbed CO, which exhibited a close correlation with their catalytic activity.