Síntese, caracterização e aplicação de novos complexos derivados do piridoxal como miméticos na superóxido dismutase e peroxidases

• Ano de defesa: 2015
• Autor(a) principal: Roman, Daiane
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Santa Maria; Brasil; Química; UFSM; Programa de Pós-Graduação em Química; Centro de Ciências Naturais e Exatas
• Palavras-chave em Português: Complexos; Miméticos; Superóxido dismutase (SOD); Peroxidases; Difração de raios X; Complexes; Mimetics; X-ray diffraction; CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA
• Link de acesso: http://repositorio.ufsm.br/handle/1/22368

This work describes the synthesis, characterization and application of complexes containing metals of transition. The synthesis of ligands (Bases of Schiff) was carried out from pyridoxal hydrochloride, salicylic aldehyde, dihydrazides and primary amines with aliphatic or aromatic chains, and metallic salts of chloride, perchlorate and acetylacetonate for the synthesis of complexes. The synthesized compounds were 1-[Mn2(L1)2](ClO4)2(Cl)2(H2O)2; 2- Ni2(L1)2](ClO4)2(Cl)2; 3-[V2O2(L1)(CH3O)2]; 4-[Fe2(L2)2](Cl)4(H2O)2; 5-[V2O4(L3)](DBUH) 2; 6-[V2O4(L4)](Et3N-H)2; 7-[Ni2(L5)(Cl)(H2O)5](ClO4)Cl(H2O)3; 8- [Ni3(L6)3](ClO4)4Cl(H2O)4; 9- [Cu2(L6)(ClO4)2(H2O)4](ClO4)2(H2O)2; 10- [Ni(L7)](2H2O) 11- [Fe(L7)](ClO4)(H2O). The structural study of these compounds was accomplished in the solid state using the X-ray diffraction on single crystal. The tests superoxide dismutase activity (SOD) and peroxidase of complexes was determined spectrophotometrically. In addition, all compounds were characterized by infrared spectroscopy. To identify the oxidation state of some complexes the electron paramagnetic resonance (EPR) was used.