Ph-functionalised phosphanylalkyl(silyl)cyclopentadienyl ligands: Synthesis and catalytic properties of [((η5-C5H4)CMe2 PHtBu)MCl3] (M = Ti, Zr) and [((η5-C5H4) SiMe2PHR)ZrCl3] (R = Ph, Cy)

Thomas Koch, Evamarie Hey-Hawkins, Mercedes Galan-Fereres, Moris S. Eisen

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

The silylated phosphanylsilylcyclopentadienes 1- and 3-SiMe3-1-SiMe2PHRC5H4 [R = Ph (1), Cy (2)] and phosphanylalkylcyclopentadienes 1-, 2- and 3-CMe2PHtBu-1-SiMe3C5 H4 (3) were prepared from LiPHR and 1-SiMe3-1-SiMe2ClC5H4 and Li[(1- PHtBuCMe2C5H4] and SiMe3Cl, respectively. Complexes 1 and 2 react with ZrCl4 to give [((η5-C5H4)SiMe2PHR) ZrCl3] [R = Ph (4), Cy (5)], and 3 reacts with MCl4 with formation of [((η5-C5H4)CMe2 PHtBu)MCl3] [M = Ti (6), Zr (7)]. Complexes 1-7 were characterised by NMR and IR spectroscopy and mass spectrometry. Complexes 4-7 were studied in the catalytic polymerisation of ethene and propene with activation by methylalumoxane (MAO) as cocatalyst.

Original languageEnglish
Pages (from-to)2445-2450
Number of pages6
JournalPolyhedron
Volume21
Issue number23
DOIs
StatePublished - 15 Oct 2002
Externally publishedYes

Keywords

  • PH-functionalised phosphanylalkyl(silyl)cyclopentadienyl ligands
  • Polymerisation studies
  • Titanium complexes
  • Zirconium complexes

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