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Interactions of 1-hexyl-3-methylimidazolium Bromide with Acetone
Cui-ping Zhai1,2, Jian-ji Wang3, Xiao-peng Xuan3, Han-qing Wang*1, Miao Chen*1
1.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China;2.College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475001, China;3.School of Chemistry and Environmental Sciences, Henan Key Laboratory of Environmental Pollution Control, Henan Normal University, Xinxiang 453007, China
Abstract:
1H and 13C NMR chemical shifts were determined to investigate the interactions of acetone with a room temperature ionic liquid 1-hexyl-3- methylimidazolium bromide [C6mim]Br at various mole fractions. Changes in chemical shifts of hydrogen nuclei and of carbon nuclei with the acetone concentration indicated the formation of hydrogen bond between anion of the ionic liquid and methyl protons of acetone. The NMR results were in good agreement with the ab initio computational results.
Key words:  1H and 13C NMR, Chemical shift, 1-hexyl-3-methylimidazolium bromide ionic liquid, Acetone,Interaction
FundProject:
溴代1-己基-3-甲基咪唑离子液体与丙酮的相互作用
翟翠萍    1, 王键吉  2, 轩小朋  2, 汪汉卿  3, 陈淼*3
1.中国科学技术大学化学系,合肥,230026;2.河南师范大学化学与环境科学学院,河南省环境污染控制重点实验室,新乡,453007;3.中国科学院兰州化学物理研究所,固体润滑国家重点实验室,兰州,730000
摘要:
运用核磁共振氢谱和碳谱手段,研究了室温离子液体溴代1-己基-3-甲基咪唑([C6mim]Br)在不同浓度的离子液体/丙酮混合体系中的1H和13C化学位移.实验结果表明,离子液体[C6mim]Br的阴离子与丙酮甲基上的氢原子相互作用并形成了氢键.量子化学计算结果与核磁共振实验结果一致.
关键词:  1H和13C核磁共振  化学位移  溴代1-己基-3-甲基咪唑离子液体  丙酮  相互作用
DOI:10.1360/cjcp2006.19(5).447.4
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