Synthesis, characterization and thermal behavior of heterobimetallic carbonyl compounds of the type [W(CO)(4)(bipy)(CuX)] (X=Cl, N-3, ClO4 and BF4)

Página do item simplificado
dc.contributor.authorCasagrande, O. L.
dc.contributor.authorMauro, A. E. [UNESP]
dc.contributor.institutionUniversidade Federal do Rio Grande do Sul (UFRGS)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:18:17Z
dc.date.available2014-05-27T11:18:17Z
dc.date.issued1997-12-01
dc.description.abstractFour new heterobimetallic metal carbonyls were synthesized by the reaction of [W(CO)4(bipy)] (1) with copper(I) compounds leading to species with the general formula [W(CO)4(bipy)(CuX)] (X = Cl, N3, ClO4, BF4) (2-5). The metal carbonyl compounds were characterized by elemental analysis, infrared and UV -visible electronic spectroscopy and thermogravimetric analysis. The IR data for 2-5 show carbonyl stretching band patterns similar to compound 1 ; ie they exhibit the same number of bands. The UV - vis results show a dissociation reaction generating the starting compound 1 and CuX as consequence of a weak interaction between 1 and CuX. Thermal decomposition mechanisms as well as the thermal stability are influenced by the CuX fragments. The thermal stability decreases in the order [W(CO)4(bipy)] > [W(CO)4(bipy)(CuCl)] > [W(CO)4(bipy) (CuBF4)]. The X-ray results show the formation of WO3, CuWO4, Cu2O and CuO as final decomposition products.en
dc.description.affiliationGrupo de Catálise Instituto de Química UFRGS, Av. Bento Gonçalves, 9500, 91501-970, Porto Alegre, RS
dc.description.affiliationInst. de Quimica de Araraquara UNESP, C.P. 355, 14800-900, Araraquara, SP
dc.description.affiliationUnespInst. de Quimica de Araraquara UNESP, C.P. 355, 14800-900, Araraquara, SP
dc.format.extent2193-2197
dc.identifierhttp://dx.doi.org/10.1016/S0277-5387(96)00552-9
dc.identifier.citationPolyhedron, v. 16, n. 13, p. 2193-2197, 1997.
dc.identifier.doi10.1016/S0277-5387(96)00552-9
dc.identifier.issn0277-5387
dc.identifier.lattes3300223970814448
dc.identifier.scopus2-s2.0-0006395761
dc.identifier.urihttp://hdl.handle.net/11449/131699
dc.identifier.wosWOS:A1997WX79000007
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofPolyhedron
dc.relation.ispartofjcr2.067
dc.relation.ispartofsjr0,472
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectCarbonyl
dc.subjectCopper
dc.subjectInfrared spectroscopy
dc.subjectThermal analysis
dc.subjectTungsten
dc.titleSynthesis, characterization and thermal behavior of heterobimetallic carbonyl compounds of the type [W(CO)(4)(bipy)(CuX)] (X=Cl, N-3, ClO4 and BF4)en
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes3300223970814448[2]
unesp.author.orcid0000-0003-0047-4671[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

Arquivos

Coleções

Artigos - Química Inorgânica - IQ