Synthesis and Characterization of Cyclopentadienyl Titanium Trichloride and Indenyltitanium Trichloride; Monocyclictitanium Trihalide Complexes

Abstract

CpTiCl₃ and IndTiCl₃ are homogeneous metallocene catalysts that are produced under highly controlled conditions. Syndiotactic polymerization of styrene is carried out using these catalysts while methylaluminoxane (MAO) is used as a cocatalyst. In the present paper synthesis of CpTiCl₃ was examined at first by reacting TiCl₄ with CpNa, this reaction just led to formation of Cp₂TiCl₂ so CpNa was not a suitable Cp donor compound, therefore CpSiMe₃ was used instead of CpNa. Reaction of CpSiMe₃ with TiCl₄, produced CpTiCl₃ immediately. IndTiCl₃ was synthesized by reacting IndSiMe₃ and TiCl₄ as well. At the end two synthetic catalysts were characterized by FTIR and ¹H‐NMR spectrometers.

Keywords:

• monocyclic
• synthesis
• sodium cyclopentadienide
• trimethylsilylcyclopentadiene
• cyclopentadienyltitanium trichloride
• indenyltitanium trichloride