中华医学超声杂志

应用化学 ›› 1994, Vol. 0 ›› Issue (4): 69-73.

• 研究论文 • 上一篇    下一篇

稀土乙基硫酸盐晶体的化学键研究

孟庆波, 张思远   

  1. 中国科学院长春应用化学研究所 长春 130022
  • 收稿日期:1993-09-27 修回日期:1994-04-19 出版日期:1994-08-10 发布日期:1994-08-10
  • 基金资助:
    国家自然科学基金资助课题

Study on the Chemical Bonds of Rare Earth Ethylsulphate Complex Crystals

Meng Qingbo, Zhang Siyuan   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun l30022
  • Received:1993-09-27 Revised:1994-04-19 Published:1994-08-10 Online:1994-08-10

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摘要： 利用复杂晶体化学键的介电描述理论,计算了稀土乙基硫酸盐晶体Re(C2H5SO4)3·9H2O,(Re=La→Lu,不含Pm)各化学键的键参数,讨论了每一个键的键性质,结果显示,晶体中存在16种类型和性质不同的化学键。为了验证计算结果的可靠性,利用键参数数据,计算了Eu(C2H5SO4)3·9H2O晶体的折射率,结果与实验值符合。

关键词: 稀土乙基硫酸盐, 化学键, 折射率, 极化率

Abstract: From the structure date of the rare earth ethylsulphates RE(C2H5SO4)3·9H2O(RE=La→Lu,except Pm),their efficient valence electrons,efficient valence densities and average coordinatiOn numbers of bonds etc,have been calculated by using the chemical bond theory of complex crystals of dielectric description。The results showed that in the crystals there are l6 kinds of bond which may be classified approximately in six types,namely:RP-O,O-H,S-O,C-O,C-C,and C-H. On the basis of the bond parameters of these bonds the refractive indexes of the crystals vvere thus calculated,the results were in good agreement vvith the experimentals.

Key words: rare earth ethylsulphate, chemical bond, refractive index, polariziability

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