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dc.contributor.authorSaraiva, Marta S.-
dc.contributor.authorDias Filho, Newton L.-
dc.contributor.authorNunes, Carla D.-
dc.contributor.authorVaz, Pedro D.-
dc.contributor.authorNunes, Teresa G.-
dc.contributor.authorCalhorda, Maria Jose-
dc.identifier.citationMicroporous and Mesoporous Materials. Amsterdam: Elsevier B.V., v. 117, n. 3, p. 670-677, 2009.-
dc.description.abstract[Mo(eta(3)-C(3)H(5))X(CO)(2)(NCCH(3))(2)] (X = Br, 1a; X = Cl, 1b) complexes reacted with the bidentate ligand RN=C(Ph)-C(Ph)=NR, R = (CH(2))(2)CH(3) (DAB, 2) affording [Mo(eta(3)-C(3)H(5))X(CO)(2)(DAB)] (X = Br, 4a; X = Cl, 4b), which were characterized by elemental analysis, FTIR and (1)H and (13)C NMR spectroscopy. The modified silylated ligand RN=C(Ph (Ph =NR, R = (CH(2))(3)Si(OCH(2)CH(3))(3) (DAB-Si, 3), was used to immobilize the two complexes in MCM-41 (MCM) mesoporous silica. The new materials were characterized by powder X-ray diffraction, N(2) adsorption analysis, FTIR and (29)Si and (13)C CPMAS solid state NMR spectroscopy. Both the materials and the complexes were tested in the oxidation of cyclooctene and styrene and behaved as active catalyst precursors for cyclooctene and styrene epoxidation with TBHP (t-butylhydroperoxide), leading selectively to epoxides with high conversions and TOFs. Although the homogeneous systems reach 100% conversion of cyclooctene and slightly less for styrene, the loss of catalytic activity in the heterogeneous systems is small, with a 98% conversion of styrene achieved by the chloride containing material. (c) 2008 Elsevier B.V. All rights reserved.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
dc.description.sponsorshipPró-Reitoria de Pesquisa da UNESP (PROPe UNESP)-
dc.publisherElsevier B.V.-
dc.sourceWeb of Science-
dc.subjectMesoporous materialsen
dc.titleActivity of Mo(II) allylic complexes supported in MCM-41 as oxidation catalysts precursorsen
dc.contributor.institutionUniv Lisbon-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionInst Super Tecn-
dc.description.affiliationUniv Lisbon, Fac Ciencias, CQB, Dept Quim & Bioquim, P-1749016 Lisbon, Portugal-
dc.description.affiliationUniv Estadual Paulista, Fac Eng Ilha Solteira, Dept Quim & Fis, BR-15385000 Ilha Solteira, SP, Brazil-
dc.description.affiliationInst Super Tecn, Ctr Quim Estrutural, P-1049001 Lisbon, Portugal-
dc.description.affiliationUnespUniv Estadual Paulista, Fac Eng Ilha Solteira, Dept Quim & Fis, BR-15385000 Ilha Solteira, SP, Brazil-
dc.description.sponsorshipIdFCT: SFRH/BPD/27344/2006-
dc.description.sponsorshipIdFCT: SFRH/BPD/28149/2006-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofMicroporous and Mesoporous Materials-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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