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Bott, RKJ, Schormann, M, Hughes, DL, Lancaster, SJ and Bochmann, M 
ORCID: https://orcid.org/0000-0001-7736-5428
(2006)
Synthesis and structures of ferrocenyl-substituted salicylaldiminato complexes of magnesium, titanium and zirconium.
Polyhedron, 25 (2).
pp. 387-396.
ISSN 1873-3719
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 |
| Depositing User: | Rachel Smith |
| Date Deposited: | 02 Nov 2010 17:48 |
| Last Modified: | 15 Dec 2022 17:31 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/10518 |
| DOI: | 10.1016/j.poly.2005.07.012 |
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