1-Methylimidazol-2-yl-functionalized cyclopentadienyl titanium and zirconium complexes. Crystal structure of [η 5:η1-C5H4CPh2CH2-(1-MeC3H2N2)]TiCl3

被引：0
作者：
D. P. Krut’ko
M. V. Borzov
Long Yu Liao
Wan Li Nie
A. V. Churakov
J. A. K. Howard
D. A. Lemenovskii
机构：
[1] M. V. Lomonosov Moscow State University,Department of Chemistry
[2] Northwest University,Department of Chemistry
[3] Russian Academy of Sciences,N. S. Kurnakov Institute of General and Inorganic Chemistry
[4] University of Durham,Department of Chemistry
来源：
Russian Chemical Bulletin | 2006年 / 55卷
关键词：
zirconium; titanium; cyclopentadienyl ligands; imidazole; intramolecular coordination; NMR spectroscopy; X-ray diffraction analysis;
D O I：
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学科分类号：
摘要：
The new side-chain functionalized cyclopentadienyl ligand LiC5H4CPh2CH2R (R is 1-methylimidazol-2-yl) as lithium salt 2, the trimethylsilyl derivative Me3SiC5H4CPh2CH2R (3), and the ligand in the CH form (4) were prepared starting from 6,6-diphenylfulvene and 1,2-dimethylimidazole lithiated at the 2-Me group (1) and then characterized. The half-sandwich complexes (η5:η 1-C5H4CPh2CH2R)TiCl3 (5) and (η5:η 1-C5H4CPh2CH2R)ZrCl3 (6) were synthesized. The molecular structure of complex 5 was established by X-ray diffraction. Complexes 5 and 6 exhibit dynamic behavior in solution associated with degenerate interconversion of the pseudo-six-membered metallacycle. For titanium complex 5 in a solvating solvent, a dynamic process due to intramolecular dissociation—coordination of the imidazole fragment was observed.
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页码：1574 / 1580
页数：6
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