Bedford, R. B., Betham, M., Butts, C. P., Coles, S. J., Cutajar, M., Gelbrich, T., Hursthouse, M. B., Scully, P. N. and Wimperis, S. (2007) Five-coordinate Pd(II) orthometallated triarylphosphite complexes. Dalton Transactions, 4, pp. 459-466. (doi: 10.1039/b613524b)
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Publisher's URL: http://dx.doi.org/10.1039/b613524b
Abstract
The reaction of the orthopalladated triarylphosphite complexes [{Pd(μ-Cl){κ2-P,C-P(OC6H2-2,4-R2)(OC6H3-2,4-R2)}2] (R = H, tBu) with bis(2-diphenylphosphinoethyl)phenylphosphine leads to a five-coordinate palladium(II) (R = H) and a mixture containing four-and five-coordinate species (R = tBu). The crystal structure of the five-coordinate species [Pd{κ2-P,C-(P(OC6H4)(OC6H5)2}{bis(2-diphenylphosphinoethyl)phenylphosphine}][SbF6] is presented. This complex reacts with hydrogen peroxide or [AuCl(tht)] to give four-coordinate complexes in which the displaced phosphine residue is either oxidised or coordinated to gold chloride; this demonstrates that the five-coordinate complexes are labile in solution. By contrast, the reactions of the dimeric precursors with 1,1,1-tris(diphenylphosphinomethyl)ethane give four-coordinate complexes in the solid state, although evidence is presented that the smaller phosphite-containing system is five-coordinate at room temperature or higher in solution.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Wimperis, Professor Stephen |
Authors: | Bedford, R. B., Betham, M., Butts, C. P., Coles, S. J., Cutajar, M., Gelbrich, T., Hursthouse, M. B., Scully, P. N., and Wimperis, S. |
Subjects: | Q Science > QD Chemistry |
College/School: | College of Science and Engineering > School of Chemistry |
Journal Name: | Dalton Transactions |
Publisher: | Royal Society of Chemistry |
ISSN: | 1477-9226 |
ISSN (Online): | 1477-9234 |
Published Online: | 12 December 2006 |
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