Synthesis and Crystal Structure of β-Diketiminate Ytterbium Dichloride  

作　　者：薛明强 姚英明 张勇 沈琪 

机构地区：[1]College of Chemistry and Chemical Engineering, Suzhou University, Suzhou, diangsu 215006, China

出　　处：《Chinese Journal of Structural Chemistry》2004年第3期275-277,共3页结构化学（英文）

基　　金：Supported by the National Natural Science Foundation of China (20072027); Department of Education of Jiangsu province; and the Key Laboratory of Organic Synthesis of Jiangsu province

摘　　要：The reaction of anhydrous YbCl3 with lithium b-diketiminate, LLi (L = N,N- diphenyl-2,4-pentanediimine anion), in 1:1 molar ratio in THF gave rise to the title complex LYbCl2(THF)2 1 which has been characterized by single-crystal X-ray diffraction. It crystallizes in the orthorhombic system, space group Pna21(#33) with a = 19.657(8), b = 9.581(4), c = 14.107(6) ? V = 2656.8(18) 3, Z = 4, C25H33N2O2Cl2Yb, Mr = 637.49, Dc = 1.594 g/cm3, F(000) = 1268.00 and m(MoKa) = 3.744mm-1. The final R and wR are 0.031 and 0.073 for 2596 observed reflections with I > 2s(I), respectively. The X-ray crystal structure analysis revealed that the center ytterbium(III) is bonded to two chloride anions, two oxygen atoms from two tetrahydrofuran molecules and one chelate ligand b-diketiminate to form a six-coordinate distorted octahedral geometry.

关 键 词：YTTERBIUM b-diketiminate crystal structure 

分 类 号：O614.346[理学—无机化学]