Synthesis of manganese porphyrinosilica imprinted with templates using the sol-gel process

Página do item simplificado
dc.contributor.authorSacco, Hérica C. [UNESP]
dc.contributor.authorCiuffi, Katia J.
dc.contributor.authorBiazzotto, Juliana C.
dc.contributor.authorZuccki, Maria R.
dc.contributor.authorLeite, Carlos A.P.
dc.contributor.authorNascimento, Otaciro R.
dc.contributor.authorSerra, Osvaldo A.
dc.contributor.authorIamamoto, Yassuko
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de Franca
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.date.accessioned2014-05-27T11:19:56Z
dc.date.available2014-05-27T11:19:56Z
dc.date.issued2000-08-01
dc.description.abstractThe optimized conditions for the preparation of a new manganese porphyrinosilica-template material are reported. The manganese porphyrinosilica-template was prepared by the sol-gel process, by the reaction of -SO2Cl groups present in the phenyl rings of MnTDC(SO2Cl)PPCl with 3-aminopropyltriethoxysilane. The reaction produces a precursor porphyrinopropylsilyl species, which were then polymerized with tetraethoxysilane. The presence of manganese porphyrin on xerogel is confirmed by ultraviolet visible absorption spectroscopy and thermogravimetric analysis (TGA). The prepared materials have surface areas between 19 and 674 m2 g-1. Electron spectroscopy imaging of the materials show that manganese distribution in the xerogel is uniform. Both manganese(III) porphyrinosilica-template and a similar iron(III) porphyrinosilica-template can catalyze the epoxidation of cyclooctene using iodozylbenzene as oxygen donor. The metalloporphyrinosilica-template presents catalytic activity similar to that of metaloporphyrin in solution. © 2000 Elsevier Science B.V. All rights reserved.en
dc.description.affiliationDepartamento de Química Universidade de Sao Paulo FFCLRP-USP, Av. Bandeirantes 3900, CEP 14040-901, Ribeirao Preto - SP
dc.description.affiliationInst. de Fis. de São Carlos USP, São Carlos - SP
dc.description.affiliationInstituto de Química UNESP, Araraquara - SP
dc.description.affiliationUniversidade de Franca, Franca - SP
dc.description.affiliationInstituto de Química UNICAMP, Campinas - SP
dc.description.affiliationUnespInstituto de Química UNESP, Araraquara - SP
dc.format.extent150-158
dc.identifierhttp://dx.doi.org/10.1016/S0022-3093(00)00160-5
dc.identifier.citationJournal of Non-Crystalline Solids, v. 273, n. 1-3, p. 150-158, 2000.
dc.identifier.doi10.1016/S0022-3093(00)00160-5
dc.identifier.issn0022-3093
dc.identifier.scopus2-s2.0-0000244153
dc.identifier.urihttp://hdl.handle.net/11449/66208
dc.identifier.wosWOS:000088585700024
dc.language.isoeng
dc.relation.ispartofJournal of Non-Crystalline Solids
dc.relation.ispartofjcr2.488
dc.relation.ispartofsjr0,722
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.titleSynthesis of manganese porphyrinosilica imprinted with templates using the sol-gel processen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy

Arquivos

Coleções

Artigos