Silver(I) and mercury(II) complexes of meta- and para-xylyl linked bis(imidazol-2-ylidenes)

  • Murray V. Baker
  • David H. Brown
  • Rosenani A. Haque
  • Brian W. Skelton
  • Allan H. White
Original Article
First Online:
Received:
Accepted:

Abstract

Mononuclear silver and mercury complexes bearing bis-N-heterocyclic carbene (NHC) ligands with linear coordination modes have been prepared and structurally characterised. The complexes form metallocyclic structures that display rigid solution behaviour. A larger metallocycle of the form [L2Ag2]2+ [where L = para-bis(N-methylimidazolylidene)xylylene] has been isolated from the reaction of para-xylylene-bis(N-methylimidazolium) chloride and Ag2O. Reaction of silver- and mercury-NHC complexes with Pd(NCCH3)2Cl2 affords palladium-NHC complexes via NHC-transfer reactions, the mercury case being only the second example of a NHC-transfer reaction using a mercury-NHC complex.

Keywords

Silver Mercury N-Heterocyclic carbenes Carbene transfer 
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Notes

Acknowledgements

We thank the Australian Research Council for a Discovery Grant (to M.V.B. and A.H.W.), the Universiti Sains Malaysia for a postgraduate research scholarship (to R.A.H.) and Curtin University of Technology for a Curtin Research and Teaching Fellowship (to D.H.B.).

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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • Murray V. Baker
    • 1
  • David H. Brown
    • 1
    • 2
  • Rosenani A. Haque
    • 1
    • 3
  • Brian W. Skelton
    • 1
  • Allan H. White
    • 1
  1. 1.Chemistry M313, School of Biomedical, Biomolecular and Chemical SciencesThe University of Western AustraliaCrawleyAustralia
  2. 2.Department of Applied Chemistry, Nanochemistry Research InstituteCurtin University of TechnologyBentleyAustralia
  3. 3.School of Chemical SciencesUniversiti Sains MalaysiaMindenMalaysia

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