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Synthesis, X-ray structure and electrochemical characterization of palladium(II) bearing ferrocenyldiphenylphosphine complexes

Bennett, Martin A., Bhargava, Suresh K., Bond, Alan M., Burgar, Iko M., Guo, Si-Xuan, Kar, Gopa, Privér, Steven H., Wagler, Jörg, Willisa, Anthony C. and Torriero, Angel A. J. 2010, Synthesis, X-ray structure and electrochemical characterization of palladium(II) bearing ferrocenyldiphenylphosphine complexes, Dalton transactions, vol. 39, no. 38, pp. 9079-9090, doi: 10.1039/c0dt00016g.

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Title Synthesis, X-ray structure and electrochemical characterization of palladium(II) bearing ferrocenyldiphenylphosphine complexes
Author(s) Bennett, Martin A.
Bhargava, Suresh K.
Bond, Alan M.
Burgar, Iko M.
Guo, Si-Xuan
Kar, Gopa
Privér, Steven H.
Wagler, Jörg
Willisa, Anthony C.
Torriero, Angel A. J.ORCID iD for Torriero, Angel A. J. orcid.org/0000-0001-8616-365X
Journal name Dalton transactions
Volume number 39
Issue number 38
Start page 9079
End page 9090
Total pages 12
Publisher Royal Society of Chemistry
Place of publication Cambridge, England
Publication date 2010-08-23
ISSN 1477-9226
1477-9234
Summary Four new complexes, [PdX(κ2-2-C6R4PPh2)(PPh2Fc)] [X = Br, R = H (1), R = F (2); X = I, R = H (3), R = F (4)], containing ferrocenyldiphenylphosphine (PPh2Fc) have been prepared and fully characterised. The X-ray structures of complexes trans-1, cis-2 and cis-4, and that of a decomposition product of 4, [Pd(κ2-2-C6F4PPh2)(μ-I)(μ-2-C6F4PPh2)PdI(PPh2Fc)] (5), have been determined. These complexes show a distorted square planar geometry about the metal atom, the bite angles of the chelate ligands being about 69°, as expected. The cis/trans ratio of 1–4 in solution is strongly dependent on solvent. The new complexes and the uncoordinated PPh2Fc ligand were electrochemically characterised by cyclic and rotating disk voltammetry, UV-visible spectroelectrochemistry, and bulk electrolysis in dichloromethane and acetonitrile. In both cases, oxidation occurs at both the ferrocene and phosphine centres, but the complexes oxidise at more positive potentials than uncoordinated PPh2Fc; subsequently, the metal–phosphorus bond is cleaved, leading to free PPh2Fc+, which undergoes further chemical and electrochemical reactions.

Language eng
DOI 10.1039/c0dt00016g
Field of Research 030604 Electrochemistry
030306 Synthesis of Materials
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2010, The Royal Society of Chemistry
Persistent URL http://hdl.handle.net/10536/DRO/DU:30038921

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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