Abstract
Reaction of mercuric acetate with an imidazolium-linked cyclophane incorporating 2,6-phenolic moieties results in formation of an interesting new N-heterocyclic carbene (NHC) complex of mercury. The new complex is cationic and binuclear, incorporating two mercury centres and two bis(NHC) ligands, each mercury atom being bound by two NHC moieties and two phenol/phenoxy moieties. Forms of the complex having coordinating (\( {\text{HgBr}}_{4}^{2 - } \)) and non-coordinating (\( {\text{PF}}_{6}^{ - } \)) counterions have been structurally characterised.
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Acknowledgments
We thank the Australian Research Council for financial support (DP0344334 to M.V.B., A.H.W.) and an Australian Postgraduate Award (to V.J.H.). We acknowledge the Centre of Microscopy, Characterisation and Analysis, The University of Western Australia (a facility funded by The University of Western Australia, the Australian Government and the State Government of Western Australia) for providing access to facilities, and for scientific and technical assistance.
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Dedicated to Jack Harrowfield and Jacques Vicens: ‘Nil illegitimae abradum!’
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Hesler, V.J., Skelton, B.W., White, A.H. et al. Mercury complexes of an N-heterocyclic carbene derived from a calixarene/azolium cyclophane hybrid. J Incl Phenom Macrocycl Chem 82, 71–78 (2015). https://doi.org/10.1007/s10847-015-0522-y
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DOI: https://doi.org/10.1007/s10847-015-0522-y