Please use this identifier to cite or link to this item: http://hdl.handle.net/2381/13283
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dc.contributor.authorChampouret, YD-
dc.contributor.authorNodes, WJ-
dc.contributor.authorScrimshire, JA-
dc.contributor.authorSingh, K-
dc.contributor.authorSolan, GA-
dc.contributor.authorYoung, I-
dc.date.accessioned2012-10-24T08:56:37Z-
dc.date.available2012-10-24T08:56:37Z-
dc.date.issued2007-10-28-
dc.identifier.citationDALTON TRANS, 2007 (40), pp. 4565-4575-
dc.identifier.issn1477-9226-
dc.identifier.urihttp://hdl.handle.net/2381/13283-
dc.description.abstractA series of chiral dizinc complexes of the type [(2,6-{ArN=C(Me)C5H3N}2C6H3O)Zn2(micro-Cl)Cl2] [Ar=2,6-i-Pr2C6H3 (), 2,6-Me2C6H3 (), 2,4,6-Me3-C6H2 (), 2,4-Me2C6H3 ()] can be conveniently prepared in good yield by the template reaction of 2,6-{O=C(Me)C5H3N}2C6H3OH with an excess of the corresponding aniline and two equivalents of zinc dichloride in n-BuOH at elevated temperature. Alternatively, the pro-ligands, 2,6-{(ArN=C(Me)C5H3N}2C6H3OH [Ar=2,6-i-Pr2C6H3 (L1-H), 2,6-Me2C6H3 (L2-H), 2,4,6-Me3C6H2 (L3-H), 2,4-Me2C6H3 (L4-H)], can be isolated and then treated with two equivalents of zinc dichloride to afford . Interaction of with two equivalents of NaOAc in the presence of TlBF4 gives the diacetate-bridged salt [(L1)Zn2(micro-OAc)2](BF4) () while with Nadbm (dbm=dibenzoylmethanato) the bis(dbm)-chelated salt [(L1)Zn2(dbm)2](BF4) () is obtained. Hydrolysis occurs on reaction of with TlOEt to furnish [(L1)Zn2(micro-OH)Cl2] () as the only isolable product. Conversely, reaction of with Tlhp (hp=2-pyridonate) affords the neutral bis(pyridonate)-bridged trimetallic complex [(L1)Zn3(micro-hp)2Cl3] () as the major product along with as the minor one. Complex and mixtures of / act as modest activators for the ring-opening polymerisation of epsilon-caprolactone. Single crystal X-ray diffraction studies have been performed on , , , , and reveal Zn...Zn separations in the range: 3.069(4)-4.649(6) A.-
dc.formatmetadata-
dc.language.isoeng-
dc.sourcePubMed-
dc.source.urihttp://www.ncbi.nlm.nih.gov/pubmed/-
dc.subjectCations-
dc.subjectHydroxybenzoic Acids-
dc.subjectImines-
dc.subjectLigands-
dc.subjectModels-
dc.subjectMolecular-
dc.subjectMolecular Structure-
dc.subjectPyridines-
dc.subjectZinc Compounds-
dc.titleSterically variable dizinc complexes bearing bis(iminopyridyl)phenolate ligands: synthesis, structures and reactivity studies.-
dc.typeJournal Article-
dc.identifier.doi10.1039/b709385c-
dc.description.irispid11649-
Appears in Collections:Published Articles, Dept. of Chemistry

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