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Trimethylpalladium(IV) chemistry. Conformational and fluxional effects in related palladium(IV) and platinum(IV) complexes of flexible bidentate nitrogen donor ligands

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Byers, PK and Canty, AJ and Honeyman, RT and Watson, AA (1990) Trimethylpalladium(IV) chemistry. Conformational and fluxional effects in related palladium(IV) and platinum(IV) complexes of flexible bidentate nitrogen donor ligands. Journal of Organometallic Chemistry, 385 (3). pp. 429-438. ISSN 0022-328X

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Abstract

Iodomethane reacts with palladium(II) complexes PdMe2(L2), where L2 is a flexible nitrogen donor ligand such as l,l-bis(pyridin-2-yl)ethane [(py)2CHMe], to form unstable trimethylpalladium(IV) complexes characterized as fac-PdIMe3(L2) by comparison of their variable temperature 1H NMR spectra with those of stable trimethylplatinum(IV) analogues. The complexes fac-MIMe3{(py)2CHMe} occur as mixtures of isomers, with the chelate ring having the CH group adjacent to iodine in one isomer and adjacent to the methyl group trans to iodine in the other isomer. Complexes containing pyrazol-l-y1 (pz) or N-methylimidazol-l-y1 (mim) donors, fac-MIMe3(L2) [L2 = (pz)2CH2, (pz)(mim)CH2, and (py)(pz)CH2] undergo fluxional behaviour involving inversion of the six-membered chelate rings.

Item Type: Article
Journal or Publication Title: Journal of Organometallic Chemistry
Page Range: pp. 429-438
ISSN: 0022-328X
Identification Number - DOI: 10.1016/0022-328X(90)85014-P
Additional Information: The definitive version is available at http://www.sciencedirect.com
Date Deposited: 15 Jan 2008 21:51
Last Modified: 18 Nov 2014 03:27
URI: http://eprints.utas.edu.au/id/eprint/2877
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