Four New Terpyridine Complexes Based Polyoxometalates with[W_(10)O_(32)]^(4-) Anions as High-Efficiency Dual-Site Catalysis for Thioether Oxidation Reaction  

作　　者：Yin Zhang Wei-Dong Yu Fang-Qian Wang Xiangnan Wang Jiawan Zhou Chao Liu Jun Yan 

机构地区：[1]Junior Education Department,Changsha Normal University,Changsha,Hunan,410100 China [2]School of Science,Hunan University of Technology and Business,Changsha,Hunan,410000 China [3]College of Chemistry and Chemical Engineering,Central South University,Changsha,Hunan,410000 China

出　　处：《Chinese Journal of Chemistry》2024年第6期592-598,共7页中国化学（英文版）

基　　金：the support from the Project Foundation of Hunan Provincial Education Department(21C1642,22B0641,21B0584);the Research project of Changsha Normal University(XJYB202103);the Natural Science Foundation of Hunan Province(2023JJ40235);the National Natural Science Foundation of China(22204050).

摘　　要：Polyoxometalates modified with complex cations have attracted increasing attention because of the fascinating properties and the controllable structures.By adjusting the synthesis conditions,four new terpyridine complexes based hybrid POMs,[(TPY-H)CuCl]_(4)[W_(10)O_(32)]·2DMF·2H_(2)O(1),[(TPY-H)Cu(DMSO)(H_(2)O)]_(2)[W_(10)O_(32)]·2H_(2)O(2),[(TPY-H)_(2)Cu]_(2)[W_(10)O_(32)]·6DMSO·8H_(2)O(3) and[(TPY-Br)CuCl(DMSO)(H_(2)O)]_(2)[(TPY-Br)CuCl]_(2)[W_(10)O_(32)]·2DMSO·4H_(2)O(4),were prepared by using‘one-pot’method.Sing-crystal X-ray diffraction analyses,infrared radiation,etc.,revealed the structural composition of compounds 1—4,which indicates that synthesis conditions have a directional regulatory effect on the compounds synthesis.Thioether oxidation catalytic reactions show 1—4 have good catalytic activities,and powder X-ray diffraction and thermogravimetry analysis show 1—4 have superduper catalytic stability.Moreover,4 has better catalytic activity because of the different structure of terpyridine complexes.Therefore,a possible mechanism of dual-site catalysis by both cations and anions is proposed.

关 键 词：POLYOXOMETALATES Terpyridine complexes Thioether oxidation Dual-site catalysis Clusters 

分 类 号：O64[理学—物理化学]