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Related Experiment Videos

Titanium Imido Complexes with Tetradentate Schiff Base Ligands.

Jacqueline M. McInnes1, Daniel Swallow, Alexander J. Blake

  • 1Inorganic Chemistry Laboratory South Parks Road, Oxford OX1 3QR, U.K.

Inorganic Chemistry
|October 24, 2001
PubMed
Summary

New titanium imido complexes were synthesized using Schiff base ligands, enabling tert-butyl imide/arylamine exchange reactions for novel compound formation.

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Area of Science:

  • Organometallic Chemistry
  • Coordination Chemistry
  • Materials Science

Background:

  • Titanium imido complexes are valuable in catalysis and materials science.
  • Schiff base ligands offer versatile coordination environments for metal centers.
  • Understanding ligand effects on complex reactivity is crucial for designing new functional molecules.

Purpose of the Study:

  • To synthesize novel mono- and binuclear titanium imido complexes.
  • To investigate the influence of Schiff base ligand structure on complex formation and reactivity.
  • To explore the potential for imide ligand exchange in these titanium complexes.

Main Methods:

  • Reaction of [Ti(NBu(t))Cl(2)(py)(3)] with sodium salts of substituted Schiff base ligands (Na(2)[substituted-salen]).

Related Experiment Videos

  • Isolation and characterization of monomeric and binuclear titanium imido complexes.
  • Tert-butyl imide/arylamine exchange reactions to form new imido complexes.
  • Single-crystal X-ray diffraction for structural determination of key compounds.

    • Main Results:

    • Successful synthesis of monomeric [Ti(NBu(t))(substituted-salen)] and binuclear [Ti(NBu(t)){μ-(MeO)(2)salen}](2) complexes.
    • Demonstration of tert-butyl imide/arylamine exchange in less sterically hindered complexes (2 and 5).
    • Identification of specific structural features (e.g., steric bulk) influencing reactivity.
    • X-ray crystallography confirmed the structures of titanium imido complexes 3, 5, and 6.

    Conclusions:

    • Tetradentate, dianionic N(2)O(2)-donor Schiff base ligands effectively support mono- and binuclear titanium imido complexes.
    • The steric environment around the titanium center dictates the feasibility of imide ligand exchange reactions.
    • These findings provide a pathway for synthesizing diverse titanium imido complexes with tunable properties.