dc.contributorOliveira, Gelson Noe Manzoni de
dc.contributorhttp://lattes.cnpq.br/5103552511601104
dc.contributorDrechsel, Sueli Maria
dc.contributorhttp://lattes.cnpq.br/0316254665452744
dc.contributorDeflon, Victor Marcelo
dc.contributorhttp://lattes.cnpq.br/8068967021078220
dc.contributorBack, Davi Fernando
dc.contributorhttp://lattes.cnpq.br/3778138554788107
dc.contributorLang, Ernesto Schulz
dc.contributorhttp://lattes.cnpq.br/4481982189769819
dc.creatorFaoro, Eliandro
dc.date.accessioned2017-05-15
dc.date.available2017-05-15
dc.date.created2017-05-15
dc.date.issued2011-03-24
dc.identifierFAORO, Eliandro. Synthesis, reactivity and structural characterization of tellurium and aryltellurenyl halides with unusual or mixed oxidation states.. 2011. 240 f. Tese (Doutorado em Química) - Universidade Federal de Santa Maria, Santa Maria, 2011.
dc.identifierhttp://repositorio.ufsm.br/handle/1/4209
dc.description.abstractThis work presents a study related to the halogenation of diarylditellurides (RTe)2 in order to obtain tellurium and aryltellurenyl halides with unusual or mixed oxidation states. Although regarded as essentially unstable, the aryltellurenyl monohalides (RTeX) were generated in situ and captured from the reaction milieu in many ways, forming stable adducts or intermediates for the synthesis of new tellurium derivatives. Overall, the twenty-one compounds presented in this paper can be summarized into five distinct classes: {(Q+)n[RTeI2]−(I3)− n-1}; {(RTeI3)(RTeI)n, n = 1,2}; {R2Te-Te(I)R}; {RTe Te(X2)R, X = Cl, Br and I} and {(Q+)2[Te2I10]2−}. The determining factor for the formation of the first four classes is the nature of the organic group (R) of the starting ditelluride. However, all of these compounds are subjected to decomposition, inasmuch the bond C Te has the lowest energy among the carbon chalcogen bonds, and this feature also contributes to the formation of the fifth class, the tellurium halides {(Q+)2[Te2I10]2−}. Structurally, these compounds were characterized by single crystal x-ray diffraction, which showed the presence of intra- or intermolecular secondary bonds Te···Te, Te···O, Te···X, X···X (X = halogen), interactions Te···p aryl, beyond hydrogen bonds N H···X, responsible for the organization of supramolecular assemblies in the solid state.
dc.publisherUniversidade Federal de Santa Maria
dc.publisherBR
dc.publisherQuímica
dc.publisherUFSM
dc.publisherPrograma de Pós-Graduação em Química
dc.rightsAcesso Aberto
dc.subjectHaletos de ariltelurenila
dc.subjectLigações secundárias
dc.subjectDifração de raios X
dc.subjectAryltellurenyl halides
dc.subjectSecondary bonds
dc.subjectX-ray diffraction
dc.titleSíntese, reatividade e caracterização estrutural de haletos de telúrio e ariltelurenila com estados de oxidação incomuns ou mistos.
dc.typeTese


Este ítem pertenece a la siguiente institución