高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (1): 1.

• 论文 •    下一篇

稀土季铵盐配合物的研究(Ⅶ)──二硝酸四硫氰酸合铒酸四丁基铵的合成、表征和晶体结构

严纯华, 张亚文, 贾江涛, 李标国, 黄春辉   

  1. 北京大学稀土材料化学及应用国家重点实验室, 北京 100871
  • 收稿日期:1995-03-15 出版日期:1996-01-24 发布日期:1996-01-24
  • 通讯作者: 严纯华,男,34岁,博士,教授.
  • 作者简介:严纯华,男,34岁,博士,教授.
  • 基金资助:

    国家科委攀登计划资助

Studies on Rare Earth Complexes of Quaternary Ammonium Salt(Ⅶ)──Synthesis,Characterization and Structure of Tetrabutylammonium Dinitrato Tetraisothiocyanato Erbiumate

YAN Chun-Hua, ZHANG Ya-Wen, JIA Jian-Tao, LI Biao-Guo, HUANG Chun-Hui   

  1. The State Key Laboratory of Rare Earth Materials Chemistry and Applications, Peking University, Beijing 100871
  • Received:1995-03-15 Online:1996-01-24 Published:1996-01-24

摘要: 合成了一系列新型稀土季铵盐混合配体配合物,元素分析结果证明其分子式的通式为:C52H108LnN9O6S1(Ln=Eu,Dy,Er.Yb,Y).研究了该系列配合物的中红外光谱;测定了它们在乙醇溶液中的摩尔电导,证明其属3:1型电解质。用四圆衍射仪测定了铒配合物的晶体结构,属正交晶系,Pnnn空间群,晶胞参数:α=1.2470(7)nm,b=1.2934(3)nm,c=2.1112(6)nm,Z=2,R=0.066.中心离子铒被来自2个硝酸根的4个氧原子和4个硫氰酸根的4个氮原子所配位,配位数为8.Er-O键长为0.2386nm;Er-N键长为0.2457nm,饵配位多面体为畸变三角十二面体。

关键词: 混合配体稀土配合物, 结构, 二硝酸四硫氰酸合铒酸四丁基铵

Abstract: Aseries of new type mixed ligand complexes were synthesized.The general for-mula was C52H108L4 N9O6S4, Ln=Eu, Dy, Er,Yb,Y.The IRspectra of the complexes werestudied. Their mor conductivity shows they are 3:1 type electrolytes and the ionic crys-tals. The single crystal structure of the title complex was determined by a X-ray analysis.The crystal is rhombic, space group Pnnn,with unit cell dimensions:a=1.2470(7)nm,b=1.2934(3)nm,c=2. 1112(6)nm,Z=2,R=0.066.Erbium is coordinated by 4 oxygenatoms of two bidentate nitrate groups, and 4 nitrogen atoms of four thiocyanates,so the oo-ordination number is 8.The bond lengths of Er Oand Er Nare 0. 2386 nm and 0.2457nm respectively. The polyhedron skeleton around Er3+ is a distorted dodecahedron.

Key words: Rare earth mixed ligand complex, Structure, Tetrabutylammonium dinitrato te-traisothiocyanato erbiumate

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