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March 1, 1996Chemische Berichte

Synthesis and Characterization of Titanium Complexes Containing Potentially Tridentate Amido‐cyclopentadienyl Ligands

Jun Okuda Karen E. du Plooy Werner Massa Hak‐Chul Kang Ulrich Rose

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Abstract

Two new titanium complexes of the general type Ti(η5:η1‐C5H4SiMe2NCH2CH2X)Cl2 (X = NMe2 OMe), containing a tridentate ligand, were prepared by reaction of Ti(η5‐C5H4SiMe2Cl)Cl3 with the lithium amide Li(NHCH2CH2X) (X = NMe2, OMe). The 1HNMR chemical shifts for the protons of the ethylene link were found to vary considerably as a function of the temperature, indicating the presence of an equilibrium between the tri‐ and bidentate bonding mode of the ligand. A single‐crystal X‐ray structural analysis of Ti(η5:η1C5H4SiMe2NCH2CH2OMe)Cl2 revealed that the methoxy function is not intramolecularly coordinated in the solid state.

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Cite This Study

Okuda et al. (1996) studied this question.

synapsesocial.com/papers/6acd820e0596909c90ef831a https://doi.org/10.1002/cber.19961290305

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Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

1Bifunctional Cyclopentadienyl Ligands in Organotransition Metal ChemistryOriginal Research · 1994 · 127 citations
2Scandium complex [{(.eta.5-C5Me4)Me2Si(.eta.1-NCMe3)}(PMe3)ScH]2: a unique example of a single-component .alpha.-olefin polymerization catalystOriginal Research · 1990 · 538 citations
3Coping With Extreme Lewis Acidity: Strategies for the Synthesis of Stable, Mononuclear Organometallic Derivatives of ScandiumOriginal Research · 1990 · 261 citations
4Model Ziegler-Natta .alpha.-Olefin Polymerization Catalysts Derived from[{(.eta.5-C5Me4)SiMe2(.eta.1-NCMe3)}(PMe3)Sc(.mu.2-H)]2 and[{(.eta.5-C5Me4)SiMe2(.eta.1-NCMe3)}Sc(.mu.2-CH2CH2CH3)]2. Synthesis, Structures, and Kinetic and Equilibrium Investigations of the Catalytically Active Species in SolutionOriginal Research · 1994 · 474 citations
5Functionalized cyclopentadienyl ligands, IV. Synthesis and complexation of linked cyclopentadienyl‐amido ligandsOriginal Research · 1990 · 232 citations

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Synthesis and Characterization of Zirconium Complexes Containing a Linked Amido-Fluorenyl Ligand1995
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