Borohidreto complexos de cobre (I) contendo difosfinas. Caracterização espectroscópica e comportamento térmico

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dc.contributor.authorHaddad, Paula S. [UNESP]
dc.contributor.authorMauro, Antonio Eduardo [UNESP]
dc.contributor.authorFrem, Regina C.G. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:20:19Z
dc.date.available2014-05-27T11:20:19Z
dc.date.issued2001-11-01
dc.description.abstractTetrahydroborate complexes of copper (I) with bidentate phosphines, [Cu(η 2-BH 4)(dppm)] (1), [Cu(η 2-BH 4)(dppe)] (2), [Cu(η 2-BH 4)(cis-dppet)] (3) and [Cu(η 2-BH 4)(dppb)] (4) (dppm = bis(diphenylphosphino)methane; dppe = 1,2-bis(diphenylphosphino) ethane; cis-dppet = 1,2-cis(diphenylphosphino)ethene; dppb = 1,4-bis(diphenylphosphino)butane) were prepared and characterized by elemental analysis, infrared spectroscopy, NMR and thermogravimetric analysis. The IR data for 1-4 showed bands typical of a bidentate coordination of BH 4 group to the copper atom and the 31P{ 1H} NMR spectra indicated that the phosphorous atoms are chelating the metal centre. The thermal behavior of the compounds was investigated and suggested that their thermal stability is influenced by the phosphines. Their thermal stability decreased as follows: [Cu(η 2-BH 4)(dppe)] (2) > [Cu(η 2-BH 4)(dppm)] (1) > [Cu(η 2-BH 4)(dppb)] (4) > [Cu(η 2-BH 4)(cis-dppet)] (3). According to thermal analysis and X-ray diffraction patterns all compounds decomposed giving Cu(BO 2) 2, CuO, CuO 2 and Cu as final products.en
dc.description.affiliationInst. de Quim. de Araraquara Univ. Estadual Paulista Julio M., CP 355, 14801-970 Araraquara - SP
dc.format.extent786-789
dc.identifierhttp://dx.doi.org/10.1590/S0100-40422001000600015
dc.identifier.citationQuimica Nova, v. 24, n. 6, p. 786-789, 2001.
dc.identifier.doi10.1590/S0100-40422001000600015
dc.identifier.file2-s2.0-0347117772.pdf
dc.identifier.issn0100-4042
dc.identifier.lattes3300223970814448
dc.identifier.scieloS0100-40422001000600015
dc.identifier.scopus2-s2.0-0347117772
dc.identifier.urihttp://hdl.handle.net/11449/66606
dc.identifier.wosWOS:000172039800015
dc.language.isopor
dc.relation.ispartofQuímica Nova
dc.relation.ispartofjcr0.646
dc.relation.ispartofsjr0,255
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectBidentate phosphines
dc.subjectCopper (I)
dc.subjectTetrahydroborate
dc.titleBorohidreto complexos de cobre (I) contendo difosfinas. Caracterização espectroscópica e comportamento térmicopt
dc.title.alternativeTetrahydroborate complexes of copper (I) with diphosphines. Spectroscopic characterization and thermal behavioren
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/qn/paboutj.htm#03
unesp.author.lattes3300223970814448[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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Artigos - Química Inorgânica - IQ