title: A mixed-valence diacetate-bridged Mn(II)-Mn(III) complex incorporating a bridging phenolate ligand.
abstract: The synthesis and characterization of a new unsymmetrical dinucleating N,O-donor ligand, 2-[N,N-bis(2-pyridylmethyl)aminomethyl]-6-[N-(3,5-di-tert-butyl-2-oxidobenzyl)-N-(2-pyridylamino)aminomethyl]-4-methylphenol (H2Ldtb), as well as the X-ray crystal structure of its corresponding mixed-valence diacetate-bridged manganese complex, di-mu-acetato-mu-{2-[N,N-bis(2-pyridylmethyl)aminomethyl]-6-[N-(3,5-di-tert-butyl-2-oxidobenzyl)-N-(2-pyridylamino)aminomethyl]-4-methylphenolato}dimanganese(II,III) tetraphenylborate, [MnIIMnIII(C42H49N5O2)(C2H3O2)2](C24H20B), are reported. The complex may be regarded as an interesting structural model for the mixed-valence MnII-MnIII state of manganese catalase.
authors.affiliation: Departamento de Química--UFSC, 88040-900 Florianópolis, SC, Brazil. adajb@qmc.ufsc.br
authors.forename: Adailton J
authors.initials: AJ
authors.lastname: Bortoluzzi
authors.forename: Ademir
authors.initials: A
authors.lastname: Neves
authors.forename: Ricardo A A
authors.initials: RA
authors.lastname: Couto
authors.forename: Rosely A
authors.initials: RA
authors.lastname: Peralta
mesh_terms: D018360:Crystallography, X-Ray; D062385:Hydroxybenzoates / Q000737:chemistry*; D008024:Ligands; D008345:Manganese / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure
chemical_list: D062385:Hydroxybenzoates; D008024:Ligands; D008345:Manganese; C017616:phenolic acid