Synthesis and reactivity in salt metathesis reactions of trivalent [La(Tp(Me2))(2)X] (X = Cl, I) complexes: crystal structures of [La(Tp(Me2))(2)Cl] and [La(Tp(Me2))(2)(kappa(2)-pz(Me2))]

Página do item simplificado
dc.contributor.authorKunrath, F. A.
dc.contributor.authorCasagrande, O. L.
dc.contributor.authorToupet, L.
dc.contributor.authorCarpentier, J. F.
dc.contributor.institutionUniversidade Federal do Rio Grande do Sul (UFRGS)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Rennes 1
dc.date.accessioned2014-05-20T15:21:35Z
dc.date.available2014-05-20T15:21:35Z
dc.date.issued2004-09-30
dc.description.abstractReaction of LaX3(THF)(n) (X = Cl, 1) with two equiv. of K(Tp(Me2)) gave good yields of the bis-Tp complexes [La(Tp(Me2))(2)X] (X = Cl (1); I (3)). However, the formation of 1 and 3 is always accompanied by significant amounts of La(Tp(Me2))(2)(kappa(2)-pz(Me2)) ([pz(Me2)](-) = 3,5-dimethyl-pyrazolato) (2). The pyrazolato complex 2, which presumably arises from decomposition of the [Tp(Me2)](-) moiety during salt metathesis, was independently prepared in good yield from 1 and in situ generated [pz(Me2)](-). The solid-state structures of 1 and 2 were determined by single-crystal X-ray diffraction studies. Subsequent reactions of halogeno-Tp(Me2) complexes 1 and 3 with various alkali metal salts MR (M = Li, R = CH2SiMe3, Ph, N(SiMe3)(2); M = K, R = OAr) gave M(Tp(Me2)) as the major product. Alternatively, the mono-Tp bis(aryloxide) derivatives [Ln(Tp(Me2))(OC6H2-2,6-'Bu-4-Me)(2)] (Ln = La (4); Nd (5)) were obtained in high yields by salt metathesis of [Ln(OC6H2-2,6-'Bu-4-Me)(3)] with one equiv. of K(Tp(Me2)). (C) 2004 Elsevier Ltd. All rights reserved.en
dc.description.affiliationUniv Fed Rio Grande Sul, Inst Quim, Lab Catalise Mol, BR-90501970 Porto Alegre, RS, Brazil
dc.description.affiliationUNESP, Inst Quim Araraquara, BR-14800900 Araraquara, SP, Brazil
dc.description.affiliationUniv Rennes 1, CNRS, UMR 6626, Grp Matiere Condensee & Mat, F-35042 Rennes, France
dc.description.affiliationUniv Rennes 1, CNRS, UMR 6509, Lab Organomet & Catalyse, F-35042 Rennes, France
dc.description.affiliationUnespUNESP, Inst Quim Araraquara, BR-14800900 Araraquara, SP, Brazil
dc.format.extent2437-2445
dc.identifierhttp://dx.doi.org/10.1016/j.poly.2004.08.013
dc.identifier.citationPolyhedron. Oxford: Pergamon-Elsevier B.V., v. 23, n. 15, p. 2437-2445, 2004.
dc.identifier.doi10.1016/j.poly.2004.08.013
dc.identifier.issn0277-5387
dc.identifier.urihttp://hdl.handle.net/11449/32717
dc.identifier.wosWOS:000224485600012
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofPolyhedron
dc.relation.ispartofjcr2.067
dc.relation.ispartofsjr0,472
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjecttris(pyrazolyl)hydroborate (Tp) ligandspt
dc.subjectlanthanumpt
dc.subjectneodymiumpt
dc.subjectsalt metathesispt
dc.subjectaryloxide derivativespt
dc.titleSynthesis and reactivity in salt metathesis reactions of trivalent [La(Tp(Me2))(2)X] (X = Cl, I) complexes: crystal structures of [La(Tp(Me2))(2)Cl] and [La(Tp(Me2))(2)(kappa(2)-pz(Me2))]en
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.

Arquivos

Licença do Pacote
Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:

Coleções

Artigos