Absorption and emission spectroscopic parameters of Nd3+ and Eu3+ ions in their hexamethylphosphoramide complexes

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dc.contributor.authorRibeiro, Sidney José Lima [UNESP]
dc.contributor.authorMassabni, A. M. G. [UNESP]
dc.contributor.authorStucchi, Elizabeth Berwerth [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:17:25Z
dc.date.available2014-05-27T11:17:25Z
dc.date.issued1991-01-02
dc.description.abstractSyntheses of the following complexes are reported: LnX3·6L, LnX′3·4L, LnX″3·3L and Eu(NCS)3·3L, where Ln = Nd3+, Eu3+; L = hexamethylphosphoramide (hmpa); X = ClO4 -, PF6 -; X′ = NCS-, NO3 -, Br-, ClO4 -; X″=Cl-. Spectra of the complexes of Nd3+ (absorption) and Eu3+ (emission) in dichloromethane solutions were measured. The oscillator strengths of the Nd3+ f-f absorption bands within the 11 000-30 000 cm-1 region were determined and the τλ intensity parameters were obtained according to the Judd-Ofelt formalism. Covalency parameters were also determined for the Nd3+ complexes. The intensities relationship η21 of the 5D0→7F2 and 5D0→7F1 transitions of the Eu3+ was calculated. A good correlation between τ2 and the oscillator strength of the hypersensitive band of Nd3+ was found, as well as a correlation between τ2 and η21. There are only qualitative relations between τ2 and the covalency parameter. © 1991.en
dc.description.affiliationDepartamento de Química Geral e Inorgânica Instituto de Química Universidade Estadual Paulista - UNESP, C.P. 355, CEP 14800 Araraquara, SP
dc.description.affiliationUnespDepartamento de Química Geral e Inorgânica Instituto de Química Universidade Estadual Paulista - UNESP, C.P. 355, CEP 14800 Araraquara, SP
dc.format.extent67-72
dc.identifierhttp://dx.doi.org/10.1016/S0020-1693(00)85374-8
dc.identifier.citationInorganica Chimica Acta, v. 179, n. 1, p. 67-72, 1991.
dc.identifier.doi10.1016/S0020-1693(00)85374-8
dc.identifier.issn0020-1693
dc.identifier.lattes6446047463034654
dc.identifier.lattes9430703714241591
dc.identifier.orcid0000-0003-3286-9440
dc.identifier.scopus2-s2.0-4243228873
dc.identifier.urihttp://hdl.handle.net/11449/64114
dc.identifier.wosWOS:A1991FB37100012
dc.language.isoeng
dc.relation.ispartofInorganica Chimica Acta
dc.relation.ispartofjcr2.264
dc.relation.ispartofsjr0,485
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.titleAbsorption and emission spectroscopic parameters of Nd3+ and Eu3+ ions in their hexamethylphosphoramide complexesen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
unesp.author.lattes6446047463034654
unesp.author.lattes9430703714241591
unesp.author.orcid0000-0003-3286-9440[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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