Structural Changes of Conjugated Pt-Containing Polymetallaynes Exposed to Gamma Ray Radiation Doses

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorFratoddi, Ilaria
dc.creatorBronze-Uhle, Erika S.
dc.creatorBatagin-Neto, Augusto
dc.creatorFernandes, David M.
dc.creatorBodo, Enrico
dc.creatorBattocchio, Chiara
dc.creatorVenditti, Iole
dc.creatorDecker, Franco
dc.creatorRusso, Maria Vittoria
dc.creatorPolzonetti, Giovanni
dc.creatorGraeff, Carlos Frederico de Oliveira
dc.date2014-05-20T13:26:22Z
dc.date2016-10-25T16:46:34Z
dc.date2014-05-20T13:26:22Z
dc.date2016-10-25T16:46:34Z
dc.date2012-08-30
dc.date.accessioned2017-04-05T20:05:22Z
dc.date.available2017-04-05T20:05:22Z
dc.identifierJournal of Physical Chemistry A. Washington: Amer Chemical Soc, v. 116, n. 34, p. 8768-8774, 2012.
dc.identifier1089-5639
dc.identifierhttp://hdl.handle.net/11449/8492
dc.identifierhttp://acervodigital.unesp.br/handle/11449/8492
dc.identifier10.1021/jp3060747
dc.identifierWOS:000308119800014
dc.identifier0000-0003-0162-8273
dc.identifierhttp://dx.doi.org/10.1021/jp3060747
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/856848
dc.descriptionThe effect of Co-60 gamma rays irradiation on the polymetallayne [-Pt(PBu3)-C C-C6H4-C6H4-C C-](n) (Pt-DEBP) of defined chain length corresponding to 10 repeat units, has been studied in detail. The UV-vis absorption spectra of Pt-DEBP have been recorded in solution upon exposure of the polymetallayne at increasing radiation doses in the range up to 90 Gy, with special care to the features related to low doses. Complex modifications of the chemical structure of Pt-DEBP could be accessed through NMR, FTIR, GPC, and XPS characterizations, which support the attack of Cl and H radicals coming from the radiolysis of the solvent, CHCl3, to the triple C C bonds of the backbone, leading to the formation of chlorinated double and single C-C bonds, with a concomitant increase of the molecular weight due to a recombinant effect of oligomer fragments upon irradiation. The presence of vinyl and single chlorinated moieties has been sustained from the simulation of the UV-vis spectra based on theoretical calculations.
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.languageeng
dc.publisherAmer Chemical Soc
dc.relationJournal of Physical Chemistry A
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.titleStructural Changes of Conjugated Pt-Containing Polymetallaynes Exposed to Gamma Ray Radiation Doses
dc.typeOtro


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