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

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Abstract

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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Authors and Affiliations

  1. Department of Chemistry, M. V. Lomonosov Moscow State University, 1 Leninskie Gory, 119992, Moscow, Russian Federation

    D. P. Krut’ko, M. V. Borzov, Long Yu Liao & D. A. Lemenovskii

  2. Department of Chemistry, Northwest University, 229 Bei Taibai Road, Xi’an, Shaanxi, 710069, China

    M. V. Borzov & Wan Li Nie

  3. N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninsky prosp., 119991, Moscow, Russian Federation

    A. V. Churakov

  4. Department of Chemistry, University of Durham, South Road, Durham, DH1 3LE, UK

    J. A. K. Howard

Authors
  1. D. P. Krut’ko
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  2. M. V. Borzov
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  3. Long Yu Liao
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  4. Wan Li Nie
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  5. A. V. Churakov
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  6. J. A. K. Howard
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  7. D. A. Lemenovskii
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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 1518–1524, September, 2006.

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Krut’ko, D.P., Borzov, M.V., Liao, L.Y. et al. 1-Methylimidazol-2-yl-functionalized cyclopentadienyl titanium and zirconium complexes. Crystal structure of [η 5:η1-C5H4CPh2CH2-(1-MeC3H2N2)]TiCl3 . Russ Chem Bull 55, 1574–1580 (2006). https://doi.org/10.1007/s11172-006-0456-z

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  • DOI: https://doi.org/10.1007/s11172-006-0456-z

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