Synthesis, reactivity and structural characterization of linked bis(amidinate) ytterbium complexes

被引：20
作者：
Wang, JF
Yao, YM
Cheng, JL
Pang, XA
Zhang, Y
Shen, Q [1 ]
机构：
[1] Suzhou Univ, Dept Chem & Chem Engn, Key Lab Organ Synth Jiangsu Prov, Suzhou 215006, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Organ Chem, State Key Lab Organometall Chem, Shanghai 200032, Peoples R China
来源：
JOURNAL OF MOLECULAR STRUCTURE | 2005年 / 743卷 / 1-3期
基金：
中国国家自然科学基金;
关键词：
crystal structure; ytterbium complexes; N ligand; bis(amidinate); synthesis;
D O I：
10.1016/j.molstruc.2005.02.027
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Reaction of the dilithium salt of a linked bis(amidinate) dianionic ligand LLi2 [L=Me3SiNC(Ph)N(CH2)(3)NC(Ph)NSiMe3] with anhydrous YbCl3 in THF in 1:1 molar ratio, after crystallized from hexane, afforded the linked bis(amidinate) ytterbium chloride LYb(mu-Cl)(2)YbL(THF) (1). The chloro bridges in complex I can be easily broken by donor solvent. Recrystallization of complex I from hexane in the presence of THF formed the monomeric ytterbium chloride LYbCl(THF)(2) (2). Reaction of complex 2 with 1 quiv. of CpNa, after workup, gave the desired ytterbium complex LYbCp(DME) (3) in high yield. All the complexes were characterized by elemental analysis, IR spectroscopy and single-crystal X-ray diffraction. (c) 2005 Elsevier B.V. All rights reserved.
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页码：229 / 235
页数：7
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