| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9770163 | Journal of Molecular Structure | 2005 | 7 Pages |
Abstract
Reaction of the dilithium salt of a linked bis(amidinate) dianionic ligand LLi2 [L=Me3SiNC(Ph)N(CH2)3NC(Ph)NSiMe3] with anhydrous YbCl3 in THF in 1:1 molar ratio, after crystallized from hexane, afforded the linked bis(amidinate) ytterbium chloride LYb(μ-Cl)2YbL(THF) (1). The chloro bridges in complex 1 can be easily broken by donor solvent. Recrystallization of complex 1 from hexane in the presence of THF formed the monomeric ytterbium chloride LYbCl(THF)2 (2). Reaction of complex 2 with 1 equiv. 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.
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Authors
Junfeng Wang, Yingming Yao, Jinlei Cheng, Xing'an Pang, Yong Zhang, Qi Shen,