Synthesis and Crystal Structure of Bis(cyclopentadienyl) Ytterbium Complex Supported by β-Diketiminate

作     者：XUE Ming-Qiang YAO Ying-Ming SHEN Qi YU Kai-Bei 

作者机构：College of Chemistry and Chemical Engineering Suzhou University Suzhou 215006 China Chengdu Institute of Organic Chemistry The Chinese Academy of Sciences Chengdu 610041 China 

出 版 物：《Chinese Journal of Structural Chemistry》 (结构化学（英文）)

年 卷 期：2006年第25卷第2期

页      面：139-142页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070304[理学-物理化学(含∶化学物理)] 0703[理学-化学] 070301[理学-无机化学] 

基　　金：Supported by the National Natural Science Foundation of China (20072027) 

主　　题：ytterbium β-diketiminate ligand crystal structure synthesis 

摘      要：Treatment of the β-diketiminate-supported ytterbium dichloride LYbCl2（THF）2 1 （L = N,N＇-bis（2,6-dimethylphenyl）-2,4-pentanediiminate） with 2 equiv of C5H5Na gave rise to the title complex LYb（C5H5）2 2 （C31H35N2Yb, Mr = 608.65）, and its crystal structure was determined by single-crystal X-ray diffraction. The crystal belongs to monoclinic, space group P2 1/n with a = 14.417（2）, b = 10.432（2）, c = 18.040（4） ,A°, β= 95.73（2）°, V= 2699.6（9） ,A°, Dc = 1.498 g/cm^3, Z = 4, 2（MoKa） = 0.71073 ,A°,μ = 3.485 mm^-1, F（000） = 1220, the final R = 0.0304 and wR = 0.0703 for 3962 observed reflections with I 〉 2σ（I）. In the molecular structure of the title complex, the central metal atom Yb is eight-coordinated by two cyclopentadienyl groups and two nitrogen atoms of ,β- diketiminate group to form a distorted tetrahedral geometry.