Show simple item record

dc.contributor.authorNealon, G.
dc.contributor.authorMcIldowie, M.
dc.contributor.authorSkelton, B.
dc.contributor.authorMocerino, Mauro
dc.contributor.authorMassi, Massimiliano
dc.contributor.authorOgden, Mark
dc.date.accessioned2018-08-08T04:41:13Z
dc.date.available2018-08-08T04:41:13Z
dc.date.created2018-08-08T03:50:47Z
dc.date.issued2017
dc.identifier.citationNealon, G. and McIldowie, M. and Skelton, B. and Mocerino, M. and Massi, M. and Ogden, M. 2017. Structural Variations in the Complete Series of Lanthanoid Complexes of a Calix[4]arene Trisamide. Australian Journal of Chemistry.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/69510
dc.identifier.doi10.1071/CH17484
dc.description.abstract

Lanthanoid picrate (pic) complexes of 5,11,17,23-tetra-tert-butyl-25-hydroxy-26,27,28-tris(diethylcarbamoylmethoxy)calix[4]arene (LH) have been synthesised and structurally characterised, to complete this series for all lanthanoids (other than promethium). From cerium to lutetium, three structural types are observed: Type I, [Ln(L)(O,O'-pic)](pic), Ln = Ce-Dy; Type II, [Ln(L)(O-pic)](pic), Ln = Tb, Ho; Type III, [Ln(L)(HOEt)](pic)2, Ln = Er-Lu. With lanthanum, three different ten-coordinate complexes were characterised; [Ln(L)(O,O'-pic)(HOEt)](pic), [Ln(L)(O,O'-pic)(OH2)](pic), and [Ln(L)(O,O'-pic)(HOMe)](pic). The crystallisation of Type I and II observed for terbium shows that the stability of the different structures are sensitively poised at the transition points. Nevertheless, the structures show that the vacant space in the coordination sphere left by the trisamide L tends to reduce across the series as expected. It is occupied by a bidentate picrate anion and unidentate solvent molecule with lanthanum, a bidentate picrate anion for cerium to dysprosium (Type I), a unidentate picrate anion for terbium and holmium (Type II), and finally a unidentate solvent molecule from erbium to lutetium (Type III). The coordination number thus reduces from 10 to 8 across the series.

dc.publisherCSIRO Publishing
dc.titleStructural Variations in the Complete Series of Lanthanoid Complexes of a Calix[4]arene Trisamide
dc.typeJournal Article
dcterms.source.issn0004-9425
dcterms.source.titleAustralian Journal of Chemistry
curtin.departmentSchool of Molecular and Life Sciences (MLS)
curtin.accessStatusOpen access


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record