中华医学超声杂志

应用化学 ›› 1986, Vol. 0 ›› Issue (2): 11-16.

• 研究论文 • 上一篇    下一篇

用1H、17O及35Cl NMR方法研究稀土水合物的配位数和立体构型

毛希安1, 沈联芳1, 高原2, 倪嘉缵2   

  1. 1. 中国科学院武汉物理研究所;
    2. 中国科学院长春应用化学研究所
  • 收稿日期:1985-02-07 修回日期:1985-05-20 出版日期:1986-04-10 发布日期:1986-04-10
  • 通讯作者: 沈联芳

NMR STUDY ON HYDRATION NUMBER AND HYDRATE CONFIGURATION OF RARE EARTH IONS

Mao Xi-an1, Shen Lianfang1, Gao Yuan2, Ni Jiazhan2   

  1. 1. Wuhan Institute of Physics, Academia Sinica;
    2. Changchun Institute of Applied Chemistry, Academia Sinica
  • Received:1985-02-07 Revised:1985-05-20 Published:1986-04-10 Online:1986-04-10

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摘要： 本文研究了稀土氯化物水溶液1H、17O及35Cl等核的NMR信号,根据这些核的化学位移值确定了Pr、Nd二离子的水合数为9,水合物立体构型为三盖三梭柱体,Tb、Dy、HoEr、Tm、Yb等离子的水合数为8,水合物的立体 型为正方形反棱柱体。本文还计算了稀土4f电子与配位水中17O的超精细接触常数。

Abstract: 1H, 17O and 35Cl NMR chemical shifts of rare earth aqueous solutions were studied.The hydration number and hydrate configuration determined were as follows:The hydra-tion number of Pr, Nd ions is 9 and their hydrate configurations are tricapped trigonal prismatic. The hydration number of Tb, Dy, Ho, Er, Tm, Yb ions is 8 and their hydrate configurations are square antiprismatic. The hyperfine coupling constant between 17O and 4f electrons of rare earth ions was also calculated.

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