Toggle Main Menu Toggle Search

Open Access padlockePrints

σ-Bonded organometallic derivatives of yttrium(III) and thulium(III): An unusual ligand coupling reaction mediated by thulium(III)

Lookup NU author(s): Dr Keith Izod, Emeritus Professor Bill Clegg, Dr Ross Harrington

Downloads

Full text for this publication is not currently held within this repository. Alternative links are provided below where available.


Abstract

The reaction between LnI3(THF)3.5 and 2 equiv. of {(Me3Si)2(Me2MeOSi)C}K (1) in THF at room temperature yields only the mono-substituted products {(Me3Si)2(Me2MeOSi)C}LnI2(THF)2 [Ln = Y (5), Tm (6)]; under more forcing conditions decomposition occurs. In contrast, the metathesis reaction between TmI3(THF)3.5 and 2 equiv. of the lithium iodide-containing salt {(Me3Si)2(Me2MeOSi)C}K(LiI)x yields the highly unusual separated ion pair complex [[{(Me3Si)2C(SiMe2)}2O]TmI2{Li(THF)3}2][[{(Me3Si)2C(SiMe2)}2O]TmI2] (8). The dianionic ligand in 8 is derived from the coupling of 2 equiv. of (Me3Si)2(Me2MeOSi)C-, accompanied by the formal elimination of Me2O. The structures of compounds 5, 6, and 8 have been determined by X-ray crystallography; compound 8 crystallizes as an unusual ion pair, the cation and anion of which differ only in the inclusion of 2 equiv. of Li(THF)3 in the former, bridged to thulium by iodide ions. © 2006 Elsevier B.V. All rights reserved.


Publication metadata

Author(s): Bowman LJ, Izod K, Clegg W, Harrington RW

Publication type: Article

Publication status: Published

Journal: Journal of Organometallic Chemistry

Year: 2007

Volume: 692

Issue: 4

Pages: 806-812

ISSN (print): 0022-328X

ISSN (electronic): 1872-8561

Publisher: Elsevier

URL: http://dx.doi.org/10.1016/j.jorganchem.2006.10.017

DOI: 10.1016/j.jorganchem.2006.10.017


Altmetrics

Altmetrics provided by Altmetric


Actions

Find at Newcastle University icon    Link to this publication


Share