Acta Chimica Sinica ›› 2004, Vol. 62 ›› Issue (10): 940-945. Previous Articles     Next Articles

NaBF4/DMSO溶液微观结构的研究

轩小朋1,2, 张虎成1,2, 王键吉2, 汪汉卿1   

  1. 1. 中国科学院兰州化学物理研究所, 兰州, 730000;
    2. 河南师范大学化学与环境科学学院, 新乡, 453002
  • 投稿日期:2003-10-23 修回日期:2004-01-19 发布日期:2014-02-17
  • 通讯作者: 王键吉,E-mail:Jwang@henannu.edu.cn;Fax:0373-3326445. E-mail:Jwang@henannu.edu.cn
  • 基金资助:
    国家自然科学基金(No.29973009)资助项目.

Studies of Microstructure of NaBF4/DMSO Solutions

XUAN Xiao-Peng1,2, ZHANG Hu-Cheng1,2, WANG Jian-Ji2, Wang Han-Qing1   

  1. 1. Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000;
    2. College of Chemistry and Environmental Science, Henan Normal University, Xinxiang 453002
  • Received:2003-10-23 Revised:2004-01-19 Published:2014-02-17

The structure of the solvated sodium cation in dimethylsulfoxide (DMSO) solutions has been investigated using infrared and Raman spectroscopies and density functional theory (DFT) calculation. It was found that the Na+ interacts with oxygen atom of S≡O group of DMSO. This interaction seriously affects the molecular association balance and the local structure of DMSO. The solvation number of four was obtained by DFT calculation. Experimental evidence for contact ion pair between Na+ and BF 4- and its geometry was also presented.

Key words: dimethylsulfoxide, sodium tetrafluoroborate, ion solvation, ion association, vibrational spectroscopy, density functional theory