Síntese, estrutura cristalina e molecular de complexos nos sistemas 1,3-bis(p-azofenil)triazenido e 3-(2-flúorofenil)-1-(4-nitrofenil)triazenido/Pd(II)

• Ano de defesa: 2002
• Autor(a) principal: Visentin, Lorenzo do Canto
• Orientador(a): Horner, Manfredo
• Banca de defesa: Bordinhão, Jairo, Casagrande Junior, Osvaldo de Lazaro
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Santa Maria; Centro de Ciências Naturais e Exatas
• Programa de Pós-Graduação: Programa de Pós-Graduação em Química
• Departamento: Química
• País: Brasil
• Palavras-chave em Português: Química; Química inorgânica; Estrutura molecular; Estrutura cristalina; Triazenos
• Área do conhecimento CNPq: CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA
• Link de acesso: http://repositorio.ufsm.br/handle/1/27037

The reaction between palladium chloride and 1,3-bis(pazophenyl)triazenido/pyridine yields the complex trans-bis[1,3-bis(pazophenyl)triazenido]-bis(pyridine)palladium(II), complex (a), which crystallizes in the triclinic crystal system, space group P ī, Z = 2, with cell parameters a = 8,8634(7), b = 15,1791(2), c = 22,5932(2) Å, α = 109,328(6)°, β = 94,053(5)°, γ = 95,511(8)°. The final crystal structure refinement converge to R1 = 0,0780 e wR2 = 0,2503. Complex (a) shows two triazenidos ligands coordinated as terminal ligands to palladium(II), and its the coordination sphere is completed by two pyridine ligands. The coordination geometry is square planar. In these reaction the palladium chloride was dissolved in ammonium hydroxide and the triazene was dissolved in THF. The reaction between palladium chloride and 3-(2-fluorophenyl)-1-(4- nitrophenyl)triazenido/pyridine yields the complex trans-Bis[3-(2- fluorophenyl)-1-(4-nitrophenyl)triazenido]bis-(pyridine)palladium(II), complex (b), which crystallizes in the triclinic crystal system, space group P ī, Z = 1, with cell parameters a = 8,941(2), b = 9,73(2), c = 10,9449(10) Å , α = 110,058(14)°, β = 93,437(13)°, γ = 109,01(19)°. The final crystal structure refinement converge to R1 = 0,045 e wR2 = 0,105. Complex (b) shows two triazenidos ligands coordinated as terminal ligands in the palladium(II) and its the coordination sphere is completed by two pyridine ligands. The coordination geometry is square planar. In these reaction the palladium chloride was dissolved in ammonium hydroxide and the triazene was dissolved in THF.