Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/5723

Full metadata record
DC FieldValueLanguage
dc.contributor.authorCosta, F.-
dc.contributor.authorFonseca, A. Maurício C.-
dc.contributor.authorSilva, Carlos J. R.-
dc.contributor.authorNeves, Isabel C.-
dc.date.accessioned2006-10-25T14:29:58Z-
dc.date.available2006-10-25T14:29:58Z-
dc.date.issued2004-12-
dc.identifier.citation"Journal of sol-gel science and technology". ISSN 0928-0707. 32:1-3 (Dec. 2004) 353-356.eng
dc.identifier.issn0928-0707eng
dc.identifier.urihttp://hdl.handle.net/1822/5723-
dc.description.abstractThe complex trans-[FMo(NNCHCHCHCH2CH3)(Ph2PCH2CH2PPh2)2][BPh4], was dispersed in a hybrid matrix synthesized by a sol-gel process. The host matrix of the so-called ureasil is a network of silica to which oligopolyoxyethylene chains [POE, (OCH2CH2)n] are grafted by means of urea cross-links. The free complex and sol-gel materials were characterized by thermal analysis (DSC), surface analysis (XPS) and spectroscopic methods (FT-IR and UV/Vis). The data gathered indicates that the molybdenum(IV) complex is immobilized in the host matrix, and it exhibits structural properties different from those of the free form. These differences could arise either from distortions caused by steric effects imposed by the structure of hybrid matrix or by interactions with the matrix. These materials shows potential applications in heterogeneous catalysis in mild conditions.eng
dc.language.isoengeng
dc.publisherKluwereng
dc.rightsopenAccesseng
dc.subjectMolydenum (IV) complexeng
dc.subjectDiazoalceneeng
dc.subjectSol-geleng
dc.subjectComplex immobilizationeng
dc.subjectHost-guesteng
dc.subjectmolybdenum(IV) complexpor
dc.titleEffect of concentration of the diazoalcene molybdenum complex immobilized in ureasil matrixeng
dc.typearticlepor
dc.peerreviewedyeseng
dc.relation.publisherversionwww.springerlink.comeng
sdum.number1/2/3eng
sdum.pagination353-356eng
sdum.publicationstatuspublishedeng
sdum.volume32eng
oaire.citationStartPage353por
oaire.citationEndPage356por
oaire.citationIssue1-3por
oaire.citationVolume32por
dc.identifier.doi10.1007/s10971-004-5816-2por
dc.subject.wosScience & Technologypor
sdum.journalJournal of Sol-Gel Science and Technologypor
Appears in Collections:CDQuim - Artigos (Papers)

Files in This Item:
File Description SizeFormat 
JSolGelST-32(2004)353.pdf582,95 kBAdobe PDFView/Open

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID