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A mixed-valence diacetate-bridged Mn(II)-Mn(III) complex incorporating a bridging phenolate ligand
Adailton J Bortoluzzi1, Ademir Neves, Ricardo A A Couto
1Departamento de Química--UFSC, 88040-900 Florianópolis, SC, Brazil. adajb@qmc.ufsc.br
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.
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