Synthesis Of Fluorinated Metalloporphyrinosilica Imprinted With Templates Through Sol-gel Process

dc.creatorCiuffi K.J.
dc.creatorSacco H.C.
dc.creatorBiazzotto J.C.
dc.creatorVidoto E.A.
dc.creatorNascimento O.R.
dc.creatorLeite C.A.P.
dc.creatorSerra O.A.
dc.creatorIamamoto Y.
dc.date2000
dc.date2015-06-30T19:52:19Z
dc.date2015-11-26T14:47:33Z
dc.date2015-06-30T19:52:19Z
dc.date2015-11-26T14:47:33Z
dc.date.accessioned2018-03-28T21:58:04Z
dc.date.available2018-03-28T21:58:04Z
dc.identifier
dc.identifierJournal Of Non-crystalline Solids. , v. 273, n. 01/03/15, p. 100 - 108, 2000.
dc.identifier223093
dc.identifier
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-0001839470&partnerID=40&md5=42470ea995fcbc7c7ce62c03aea67d5d
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/107419
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/107419
dc.identifier2-s2.0-0001839470
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1253334
dc.descriptionWe present the synthesis of a hybrid material containing fluorinated iron porphyrins through hydrolysis and polycondensation of iron porphyrin bearing a trifluorosilyl function with tetraethoxysilane in the presence of nitrogen bases acting as template molecules. The presence of metalloporphyrin Soret band is detected in the ultraviolet-visible absorption spectra of all metalloporphyrinosilica-templates. Thermogravimetric analysis and electron paramagnetic resonance of the materials also confirm the presence of metalloporphyrin in a silica network. Electron spectroscopy imaging was that of a non-crystalline microstructure. The iron and silicon distribution are homogeneous for the elements in all particle sites. The iron porphyrinosilicas-template were active as catalysts for cyclooctene epoxidation using iodozylbenzene as oxygen donor. In general, the epoxidation yield is larger for iron porphyrinosilicas-template than for manganese porphyrinosilicas-template. The manganese porphyrinosilicas-template had a smaller activity due to their manganese oxidation state. The largest catalytic yield were obtained with the iron porphyrinosilica-pyridine (85%). © 2000 Elsevier Science B.V. All rights reserved.
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dc.languageen
dc.publisher
dc.relationJournal of Non-Crystalline Solids
dc.rightsfechado
dc.sourceScopus
dc.titleSynthesis Of Fluorinated Metalloporphyrinosilica Imprinted With Templates Through Sol-gel Process
dc.typeArtículos de revistas


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