Synthesis and structures of ferrocenyl-substituted salicylaldiminato complexes of magnesium, titanium and zirconium

Bott, RKJ, Schormann, M, Hughes, DL, Lancaster, SJ and Bochmann, M (2006) Synthesis and structures of ferrocenyl-substituted salicylaldiminato complexes of magnesium, titanium and zirconium. Polyhedron, 25 (2). pp. 387-396. ISSN 1873-3719

Full text not available from this repository. (Request a copy)

Abstract

N-ferrocenyl salicylaldimine (FcPI)H, readily accessible from aminoferrocene and salicylaldehyde, reacts with dibutylmagnesium in THF to afford a red crystalline (FcPI)2Mg(THF)2 (2). The reactions of the Li(FcPI) with CpTiCl3 gave CpTiCl2(FcPI) · CH2Cl2 (4), whereas with CpZrCl3 · DME a mixture of three products is formed: CpZrCl(FcPI)2 (5), CpZrCl2(FcPI) (6), and (FcPI)2ZrCl2 · CH2Cl2 (3 · CH2Cl2). The crystal structures of compounds 2–6 are reported. Typically, the N–O chelates are oriented such that O donors are mutually trans, while N donors prefer to be trans to Cl ligands. The redox potentials of these complexes are very similar to ferrocene. On activation with methylaluminoxane, the Ti complex 4 shows moderate activity for ethylene polymerisation, while (FcPI)2ZrCl2 is highly active for the oligomerisation of ethylene, to give products with average degrees of polymerisation of 12–16.

Item Type: Article
Faculty \ School: Faculty of Science > School of Chemistry
University of East Anglia > Faculty of Science > Research Groups > Synthetic Chemistry
Related URLs:
Depositing User: Rachel Smith
Date Deposited: 02 Nov 2010 17:48
Last Modified: 25 Jul 2018 06:04
URI: https://ueaeprints.uea.ac.uk/id/eprint/10518
DOI: 10.1016/j.poly.2005.07.012

Actions (login required)

View Item