离子液体[Emim]Br-FeCl_3的合成与酸性研究  

Study on synthesis of [Emim]Br-FeCl_3 and determination of acidity

作　　者：王要令[1] 张罡[1] 

机构地区：[1]河南城建学院化工系,河南平顶山467044

出　　处：《化工时刊》2009年第7期48-49,共2页Chemical Industry Times

摘　　要：以快速高效法合成系列离子液体[Emim]Br-FeCl3,并用乙腈探针红外光谱法对离子液体的酸强度进行了表征。结果表明:离子液体[Emim]Br-FeCl3具有Lewis酸性,且阴离子对酸强度影响较大,FeCl3含量越高,离子液体的酸强度越大。A series of [ Emim] Br - FeCl3 were rapidly synthesized by altering the molar fraction of FeCl3 in ionic liquids. And the acidity of acidic ionic liquids were studied by IR technique using acetonitrile as a probe molecule. The experiment results indicated that ionic liquids exhibited Lewis acidity and the anion of ionic liquids had great effects. The acid strength of ionic liquids rised with the increase of the amount of FeCl3.

关 键 词：离子液体 合成 Lewis酸性 

分 类 号：O621.2[理学—有机化学]