Organometallic derivatives of cyclotriphosphazene as precursors of nanostructured metallic materials: a new solid state method

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dc.contributor.authorDíaz, Carlos
dc.contributor.authorValenzuela, María Luisa
dc.contributor.authorZuinga, Luis
dc.contributor.authorO'Dwyer, Colm
dc.contributor.funderFondo Nacional de Desarrollo Científico y Tecnológico, Chile
dc.date.accessioned2016-07-01T13:44:12Z
dc.date.available2016-07-01T13:44:12Z
dc.date.issued2009-06-09
dc.date.updated2012-11-29T17:42:12Z
dc.description.abstractThe cyclic phosphazene trimers [N3P3(OC6H5)5OC5H4N·Ti(Cp)2Cl][PF6] (3), [N3P3(OC6H4CH2CN·Ti(Cp)2Cl)6][PF6]6 (4), [N3P3(OC6H4-But)5(OC6H4CH2CN·Ti(Cp)2Cl)][PF6] (5), [N3P3(OC6H5)5C6H4CH2CN·Ru(Cp)(PPh3)2][PF6] (6), [N3P3(OC6H5)5C6H4CH2CN·Fe(Cp)(dppe)][PF6] (7) and N3P3(OC6H5)5OC5H4N·W(CO)5 (8) were prepared and characterized. As a model, the simple compounds [HOC5H5N·Ti(Cp)2Cl]PF6 (1) and [HOC6H4CH2CN·Ti(Cp)2Cl]PF6 (2) were also prepared and characterized. Pyrolysis of the organometallic cyclic trimers in air yields metallic nanostructured materials, which according to transmission and scanning electron microscopy (TEM/SEM), energy-dispersive X-ray microanalysis (EDX), and IR data, can be formulated as either a metal oxide, metal pyrophosphate or a mixture in some cases, depending on the nature and quantity of the metal, characteristics of the organic spacer and the auxiliary substituent attached to the phosphorus cycle. Atomic force microscopy (AFM) data indicate the formation of small island and striate nanostructures. A plausible formation mechanism which involves the formation of a cyclomatrix is proposed, and the pyrolysis of the organometallic cyclic phosphazene polymer as a new and general method for obtaining metallic nanostructured materials is discussed.en
dc.description.sponsorshipFondo Nacional de Desarrollo Científico y Tecnológico, Chile (FONDECYT project 1085011)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationDiaz, C., Valenzuela, M. L., Zuniga, L. and O'Dwyer, C. (2009) 'Organometallic derivatives of cyclotriphosphazene as precursors of nanostructured metallic materials: a new solid state method', Journal of Inorganic and Organometallic Polymers and Materials, 19(4), pp. 507-520. http://dx.doi.org/10.1007/s10904-009-9286-4en
dc.identifier.doi10.1007/s10904-009-9286-4
dc.identifier.endpage520en
dc.identifier.issn1574-1451
dc.identifier.issued4en
dc.identifier.journaltitleJournal of Inorganic and Organometallic Polymers and Materialsen
dc.identifier.startpage507en
dc.identifier.urihttps://hdl.handle.net/10468/2820
dc.identifier.volume19en
dc.language.isoenen
dc.publisherSpringeren
dc.rights© Springer Science+Business Media, LLC 2009. The final publication is available at Springer via http://dx.doi.org/10.1007/s10904-009-9286-4en
dc.subjectOrganometallicen
dc.subjectCyclotriphosphazenesen
dc.subjectNanomaterialsen
dc.subjectSolid-stateen
dc.titleOrganometallic derivatives of cyclotriphosphazene as precursors of nanostructured metallic materials: a new solid state methoden
dc.typeArticle (peer-reviewed)en
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