Jump to main content
Jump to site search

Issue 12, 2013
Previous Article Next Article

Ethylenepolymerisation and oligomerisation with arene-substituted phenoxy-imine complexes of titanium: investigation of multi-mechanism catalytic behaviour

Author affiliations

Abstract

A range of unsubstituted (1,2) and 6-substituted (3–5) ortho-phenoxy-imine ligands have been prepared and converted to their silyl ether derivatives (6–10). Reaction of silyl ethers with TiCl4(thf)2 in the case of the unsubstituted species yields bis-ligated complexes while the substituted species react cleanly to yield complexes of the form [Ti(O^NR)Cl3(thf)]. In most cases the complexes have been characterised by X-ray crystallography. Testing of the complexes for ethylene oligomerisation and polymerisation has been undertaken employing alkylaluminium co-catalysts (AlEt3, MAO). In all cases the predominant product formed is polyethylene however careful analysis of the liquid phase reveals a complex process by which 1-butene is most likely formed via Cossee mechanism while 1-hexene results from a metallacyclic process.

Graphical abstract: Ethylene polymerisation and oligomerisation with arene-substituted phenoxy-imine complexes of titanium: investigation of multi-mechanism catalytic behaviour

Back to tab navigation

Supplementary files

Publication details

The article was received on 20 Sep 2012, accepted on 30 Jan 2013 and first published on 31 Jan 2013


Article type: Paper
DOI: 10.1039/C3DT32183E
Dalton Trans., 2013,42, 4185-4196

  •   Request permissions

    Ethylene polymerisation and oligomerisation with arene-substituted phenoxy-imine complexes of titanium: investigation of multi-mechanism catalytic behaviour

    J. A. Suttil, D. S. McGuinness, M. G. Gardiner and S. J. Evans, Dalton Trans., 2013, 42, 4185
    DOI: 10.1039/C3DT32183E

Search articles by author

Spotlight

Advertisements