The synthesis, structure and catalytic activity of mono(salicylaldiminato) titanium complexes

Abstract

Reaction between 3-Bu^t-2-(OSiMe₃)C₆H₃CHN(2,6-R₂C₆H₃) (where R = H (1a) or Prⁱ (1b)) and TiCl₄(THF)₂ affords the octahedral complexes Ti{3-Bu^t-2-(O)C₆H₃CHN(2,6-R₂C₆H₃)}Cl₃(THF) while in the absence of THF 1b reacts with TiCl₄ to give the binuclear complex [Ti{3-Bu^t-2-(O)C₆H₃CHN(2,6-Prⁱ₂C₆H₃)}Cl(μ–Cl)₃TiCl₃]; the complexes give good productivities for ethene polymerisation when activated with MAO.