Synthesis and catalytic properties of manganese(II) and oxovanadium(IV) complexes anchored to mesoporous MCM-41

• Autor(a) principal: Fernandes, Tiago A.
• Data de Publicação: 2008
• Outros Autores: Nunes, Carla D., Vaz, Pedro D., Calhorda, Maria José, Brandão, Paula, Rocha, João, Gonçalves, Isabel S., Valente, Anabela A., Ferreira, Liliana P., Godinho, Margarida, Ferreira, Paula
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10316/4331; https://doi.org/10.1016/j.micromeso.2007.09.009
• topic: Mesoporous materials; Manganese; Oxovanadium; Nitrogen ligands; Epoxidation

Reaction of [MnIII(acac)3] and [VIVO(acac)2] with the 1,4-diazabutadiene (DAB) ligands Ph-DAB-(CH2)3R [R = Si(OEt)3(1a); H (1b)] (L) leads to complexes of the type [MnII(acac)2L] and [VIVO(acac)L]Cl in good yields. These complexes were characterised by spectroscopic techniques, and magnetic measurements showed that in the case of the manganese the metal was reduced during the reaction with the nitrogen ligand.