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dc.contributor.authorBrown, David
dc.contributor.authorSkelton, B.
dc.date.accessioned2017-01-30T10:50:44Z
dc.date.available2017-01-30T10:50:44Z
dc.date.created2011-08-24T20:01:14Z
dc.date.issued2011
dc.identifier.citationBrown, David and Skelton, B. 2011. Nickel complexes of a bis(benzimidazolin-2-ylidene)pyridine pincer ligand with four- and five-coordinate geometries. Dalton Transactions. 40 (35): pp. 8849-8858.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/6115
dc.identifier.doi10.1039/C1DT10928F
dc.description.abstract

The four- and five-coordinate complexes [(CNC)NiX2] (X = Cl, Br, I), [(CNC)NiX]PF6 (X = Cl,Br) and [(CNC)NiCl]ClH2O have been isolated, where CNC is the bis(N-butylbenzimidazolin-2-ylidene)-2,6-pyridine pincer ligand. A five-coordinate geometry is rare for this class of complex.Where amenable, the complexes have been structurally characterised by single crystal X-raydiffraction studies and in solution by NMR, UV-vis and MS studies. The five-coordinate dibromocomplex [(CNC)NiBr2] is readily prepared on the gram-scale from the benzimidazolium saltprecursor and Ni(OAc)24H2O in DMSO without the exclusion of air. Halide exchange and saltmetathesis reactions using [(CNC)NiBr2] afford the other four- and five-coordinate complexes.[(CNC)NiBr2] displays very low solubility, and upon dissolution affords solutions of the fourcoordinate[(CNC)NiBr]+. Factors that influence the formation of four- or five-coordinatecomplexes with this ligand class are discussed.

dc.publisherThe Royal Society of Chemistry
dc.titleNickel complexes of a bis(benzimidazolin-2-ylidene)pyridine pincer ligand with four- and five-coordinate geometries
dc.typeJournal Article
dcterms.source.volume40
dcterms.source.startPage8849
dcterms.source.endPage8858
dcterms.source.issn1477-9226
dcterms.source.titleDalton Transactions
curtin.departmentNanochemistry Research Institute (Research Institute)
curtin.accessStatusOpen access


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