SYNTHESIS AND CRYSTAL STRUCTURE OF {C（η5-C5H5）4Nd4（μ4-O）（μ2-Cl）8)]·[Li（dme）2THF]2

被引：0

作者：

Li Xiang-Gao Liu Jing-Zhi Jin Shong-Chun Lin Yong-Hua Liu Guo-Zhi Changchun Institute of Applied Chemistry

机构：

来源：

结构化学 | 1991年 / 01期

关键词：

Nd; dme; SYNTHESIS AND CRYSTAL STRUCTURE OF; C5H5; Li; THF; Cl;

D O I：

10.14102/j.cnki.0254-5861.1991.01.013

中图分类号：

学科分类号：

摘要：

The reaction of （η5-C5H5）3Nd·THF and NdCl3·2LiCl·nTHF in solution at room temperature gave rise to[（η5-C5H5）4Nd4（μ4-O）(μ2-Cl)8][Li（dme）2THF]2 （Mr = 1654.44）. Crystals of the compound were obtained at about - 10℃. The intensity data were collected under nitrogen atmosphere at-60℃. The crystal belongs to the rhombic system with space group Pna21 and the unit cell parameters : a=19. 010（7）,b = 23. 231（6） ,c= 14. 180（4） A ;V = 6261. 91 （A3） , DC= 1. 67 （g/cm3）, λ（MoKa） = 0. 71069A,F（000） = 3240,μ（mm-1） = 3. 660;Z = 4. Least-squares refinement with anisotropic temperature factors for all non-hydrogen atoms led to the final R=0. 054, Rw = 0. 056. The molecule is made up of the anion group and the cation. The oxygen atom links four Nd3+together as μ4-bridge. The eight chlorine atoms form the eight chlorine-bridge bonds among four Nd3+ions. The average bond length is : Nd-O=2. 374,Nd-Cl = 2. 811,Nd-C=2. 777,Nd（a）- Nd（b） = 3. 872A.The bond angles of Nd（a） -Nd （b）-Nd（c） fall in the range of 623°,th

引用

页码：60 / 66

页数：7

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SYNTHESIS AND CRYSTAL STRUCTURE OF {C（η5-C5H5）4Nd4（μ4-O） （μ2-Cl）8)]·[Li（dme）2THF]2

SYNTHESIS AND CRYSTAL STRUCTURE OF {C（η5-C5H5）4Nd4（μ4-O）（μ2-Cl）8)]·[Li（dme）2THF]2