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磁性离子液体1-甲基-3-烷基咪唑四卤化铁盐的合成及其物性表征
Synthesis and Properties of 1-Methyl-3-Alkylimidazolium Tetrahalogenoferrate Magnetic Ionic Liquids

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文摘 合成了4种1-甲基-3-烷基咪唑四氯化铁盐[C_nmim]FeCl_4(n=2,4,6,8)及3种1-甲基-3-丁基咪唑四卤化铁 ([C_4mim]FeX_4,X=Cl, Br)磁性离子液体, 光谱结果表明, [C_nmim]FeCl_4及[C_4mim]FeBr_4中阴离子单一, 而[C_4mim]FeClBr_3及[C_4mim]FeCl_3Br中的阴离子为FeBr_4~-, FeBr_3Cl~-, FeCl_2Br_2~-, FeCl_3Br~-, FeCl_4~-的混合物.测定了其密度、粘度、电导率, 磁性离子液体密度较大, 25℃时为1.25~1.94 g/cm~3; 粘度较小, 25℃时为21~65 mPa·s; 电导率较大, 30℃时为0.23~1.37 S/m.并研究了其物性随温度及结构的变化规律
其他语种文摘 Seven magnetic ionic liquids of 1-methyl-3-alkylimidazolium tetrachloroferrate[C_nmim]FeCl_4(n=2,4,6,8)and 1-methyl-3-butylimidazolium tetrahalogenoferrate[C_4mim]FeX_4(X=Cl, Br)were synthesized and verified with ~1H-NMR, Raman and MS spectra.[C_nmim]FeCl_4 and [C_4mim]FeBr_4 had single anions, but[C_4mim]FeClBr_3 and [C_4mim]FeCl_3Br had multi-anions, including FeBr_4~-, FeBr_3Cl~-, FeCl_2Br_2~-, FeCl_3Br~- and FeCl_4~-.The density, viscosity and conductivity of magnetic ionic liquids were measured. It was found that their densities were bigger than those of traditional ionic liquids,1.25~1.94 g/cm~3 at 25℃;viscosities were lower,21~65 mPa-s at 25℃;conductivities were higher,0.23~1.37 S/m at 30℃.The influences of temperature and structure of cations and anions on the above properties were extensively investigated
来源 过程工程学报 ,2010,10(4):788-794 【核心库】
关键词 磁性离子液体 ; 结构 ; 密度 ; 粘度 ; 电导率
地址

中国科学院过程工程研究所, 多相复杂系统国家重点实验室, 北京, 100190

语种 中文
文献类型 研究性论文
ISSN 1009-606X
学科 化学
基金 国家973计划 ;  中国科学院知识创新工程重要方向项目
文献收藏号 CSCD:3973021

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引证文献 5

1 陈晏杰 基于离子液体的合成氨驰放气中氨回收工艺模拟计算 过程工程学报,2011,11(4):644-651
被引 3

2 陈彪 磁性离子液体的应用研究 化学进展,2012,24(2/3):225-234
被引 4

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