Titanium and zirconium complexes with sterically hindered aryl-substituted iminophosphoranato ligands

Said, Musa, Thornton-Pett, Mark and Bochmann, Manfred ORCID: https://orcid.org/0000-0001-7736-5428 (2001) Titanium and zirconium complexes with sterically hindered aryl-substituted iminophosphoranato ligands. Journal of the Chemical Society, Dalton Transactions (19). pp. 2844-2849. ISSN 1477-9234

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

Abstract

The benzyliminophosphorane 4-ButC6H4CH2P(Ph)2==NC6H2Me3-2,4,6 reacted with TiCl4 or ZrCl4 to give the N-donor adducts, MCl4{4-ButC6H4CH2P(Ph)2==NC6H2Me3-2,4,6}. Whereas the zirconium compound proved unreactive, solutions of the titanium analogue at 10–20 °C slowly underwent C–H activation to give the phosphoranato complex TiCl3{4-ButC6H4CHP(Ph)2==NC6H2Me3-2,4,6}. The trichloro complexes MCl3{4-ButC6H4CHP(Ph)2==NC6H2Me3-2,4,6} were also accessible from Li[4-ButC6H4CHP(Ph)2==NC6H2Me3-2,4,6] and MCl4 (M = Ti or Zr). The reaction of 4-ButC6H4CH2P(Ph)2==NC6H2Me3-2,4,6 with Zr(NMe2)4 in refluxing toluene led to Zr(NMe2)3{4-ButC6H4CHP(Ph)2==NC6H2Me3-2,4,6}. The compound is fluxional in solution. Treatment with an excess of Me3SiCl led to silylation of the ligand to give ZrCl4{4-ButC6H4CH(SiMe3)P(Ph)2==NC6H2Me3-2,4,6}. The structures of 4-ButC6H4CH2P(Ph)2==NC6H2Me3-2,4,6 and Zr(NMe2)3{4-ButC6H4CHP(Ph)2==NC6H2Me3-2,4,6} were determined by X-ray diffraction.

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Chemistry
Depositing User:	Rachel Smith
Date Deposited:	02 Nov 2010 17:48
Last Modified:	24 Oct 2022 03:45
URI:	https://ueaeprints.uea.ac.uk/id/eprint/10477
DOI:	10.1039/b105038a

Actions (login required)

View Item