DICYCLOPENTADIENYL COMPLEXES OF YTTERBIUM(III) - THE CRYSTAL-STRUCTURE OF [YB(ETA(5)-C(5)H(4)SIME(3))(2)(MU-CL)](2)

被引:5
作者
SPIRLET, MR [1 ]
GOFFART, J [1 ]
机构
[1] UNIV LIEGE,CHIM ANALYT & RADIOCHIM LAB,B-4000 LIEGE,BELGIUM
关键词
YTTERBIUM; CRYSTAL STRUCTURE; LANTHANIDE; X-RAY DIFFRACTION;
D O I
10.1016/0022-328X(94)05330-E
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The title complex was prepared by reaction of YbCl3 with Li (C(5)H(4)SiMe(3)) in tetrahydrofuran. A single crystal X-ray diffraction study has revealed that the complex is dimeric with bridging chlorine atoms. A flattened tetrahedron around each ytterbium atom is formed by the centroids of two cyclopentadienyl rings and the two bridging chlorine atoms. Comparison of bond distances and angles with those reported for similar dicyclopentadienylytterbium complexes shows that substitution on the cyclopentadienyl ligands by bulky trimethylsilyl groups does not affect the stereochemistry about the lanthanide atom.
引用
收藏
页码:149 / 151
页数:3
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