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Wdeson Pereira Barros – LabCri

Inscrições

Wdeson Pereira Barros
Universidade Estadual de Campinas (UNICAMP)
Campinas / SP / Brasil

Estudo das propriedades ópticas e magnéticas de polímeros de coordenação envolvendo íons lantanídeos e derivados do ácido piridinil(vinil)benzoico e derivados de oximas fenólicas.

O presente trabalho consiste no estudo das propriedades ópticas e magnéticas de sistemas contendo íons lantanídeos e ligantes derivados do ácido piridinil(vinil)benzoico ou derivados de oximas fenólicas. Com esta estratégia foram obtidos polímeros de coordenação tanto com o pré-ligante ácido 4-{2-(4-piridinil)vinilbenzoico} e os cátions trivalentes de Pr, Eu, Gd, Dy, Nd e Tb, quanto com o pré-ligante oxima do ácido 3-formil-4-hidroxibenzoico e o cátion Pr(III). Em relação às propriedades magnéticas, foi realizado um estudo preliminar do comportamento magnético sob um campo externo dc. Em relação às propriedades ópticas, foi feito um estudo luminescente no composto contendo Eu(III) e Hpvb, que se comportou como um termômetro luminescente entre 16,00 e 320 K. Os compostos foram caracterizados por várias técnicas, entretanto, a difração de raios X por monocristais tem se mostrado de enorme importância neste trabalho pois possibilita um melhor entendimento de suas propriedades físicas.

Patrocínio:

Realização:

Apoio:

Agradecimentos