Synthesis and Properties of Nonatungstotricobaltosilicate Isomers  

作　　者：LIU Jing-fu, ZHAO Ben-liang, WANG Fu-quan and FANG Qun-xin (Department of Chemistry Northeast Normal University, Changchun, 130024) 

出　　处：《Chemical Research in Chinese Universities》1993年第4期357-363,共7页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China

摘　　要：Introduction Recently substituted-type of heteropolyanions has received much attention from the point of view of their catalysis. Hill, Finke, Neumann reported respectively that transition metal mono-substituted heteropolyanions PW;M, P;W;M and SiW;Ru have an ability to catalyze the epoxidation of olefin. We discovered that trisubstituted Keggin heteropolyanions have this property too. This paper describes the synthesis, properties of α- and β-[SiW;O;Co;（H;O）;];and its catalysis for the epoxidation of olefin by PhIO.

关 键 词：Nonatungstotricobaltosilicate Trisubstituted heteropolyanion Epoxidation of olefin 

分 类 号：O6[理学—化学]