Acta Phys. -Chim. Sin. ›› 2006, Vol. 22 ›› Issue (04): 456-459.doi: 10.3866/PKU.WHXB20060413

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NMR Study on the Interactions of Ionic Liquid with Acetone

ZHAI Cui-Ping;WANG Jian-Ji;XUAN Xiao-Peng;WANG Han-Qing   

  1. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China; Department of Chemistry, Henan Normal University, Xinxiang 453007, P. R. China; Graduate School of the Chinese Academy of Sciences, Beijing 100049, P. R. China
  • Received:2005-09-05 Revised:2005-12-03 Published:2006-04-10
  • Contact: WANG, Han-Qing E-mail:whqwt@yahoo.com.cn

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Abstract: 1H NMR, 13C NMR, and 13C spin-lattice relaxation time(T1) of the mixtures of room temperature ionic liquid [C8mim][BF4] and acetone with different proportions have been studied by NMR. The results indicated that the interaction between the protons of the ring, the methyl and methylene next to the nitrogen of ionic liquids and the carbonyl oxygen of acetone weakened the strong interaction between the cation and anion of the ionic liquid, thus increased the motion and decreased the viscosity of the ionic liquid.