六齿八羟基喹啉锰类配合物催化二甲亚砜的氧化消除(英文)  

Catalytic Oxidative Removal of Dimethylsulfoxide by Hexadentate 8-Quinolinolato Manganese(Ⅲ) Complexes

作　　者：谢芳[1] 伏再辉[1] 衷晟[1] 叶正培[1] 周小平[1] 刘凤兰[1] 卢春丽[1] 荣春英[1] 毛利秋[1] 尹笃林[1] 

机构地区：[1]湖南师范大学化学化工学院,资源精细化与先进材料湖南省高校重点实验室,化学生物学及中药分析教育部重点实验室,湖南长沙410081

出　　处：《催化学报》2009年第10期981-985,共5页

基　　金：Supported by the National Natural Science Foundation of China (20873040, 20573035);the Youth Foundation of Hunan Normal University (53112-1658)

摘　　要：在NH4OAc和HOAc的促进下,使用环境友好的丙酮-水混合溶剂,六齿八羟基喹啉锰类配合物(Q3MnIII)能够高效地催化H2O2氧化二甲亚砜(DMSO).卤素取代的Q3MnIII配合物具有更高的催化活性,这归因于卤素取代基能加强Q3MnIII的畸变效应,这一点经B3LYP/6-311G+(d)计算得到证实.另外考察了一些因素对反应的影响,并提出了一个催化反应机理.A series of hexadentate 8-quinolinolato manganese（III） complexes （Q3Mn^II）, with NH4OAc and HOAc as additives, were highly efficient catalysts for the oxidation of dimethylsulfoxide （DMSO） with aqueous hydrogen peroxide in an environmentally friendly acetone-water medium. The halogen substituents on the ligand improved the catalytic efficiency of Q3Mn^III complexes, which was likely due to their strong distortion effect on Q3Mn^III as indicated by the B3LYP/6-311 G＋（d） calculation. Various parameters were investigated and a reaction mechanism was proposed.

关 键 词：二甲亚砜 催化氧化 六齿八羟基喹啉锰配合物 过氧化氢 

分 类 号：O643.32[理学—物理化学]