Chinese Journal of Magnetic Resonance ›› 1986, Vol. 3 ›› Issue (4): 377-380.

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A NOVEL 19F NMR APPROACH TO MEASURE THE FORMATION CONSTANT OF Ba2+ COMPLEX WITH 18-CROWN-6

Mao Xian1, Xu Guangzhi1, Shen Qifeng2, Lu Xiaoming2, Liu Jun2   

  1. 1 Institute of Chemistry, Academia Sinica, Beijing;
    2 Beijing Adricultrural University
  • Received:1985-11-08 Revised:1986-05-30 Published:1986-12-05 Online:2018-01-23

Abstract: An indirect, but quite simple NMR method for measuring the formation constant of Ba2+ complex with 18-crown-6 has been developed. External referencing of intensities has been applied to measure the 19F intensities in saturated BaF2 solutions in the presence or absence of the ligand substance.The formation constant pf Ba2+ complex with 18-crown-6 has been determined by this method.