title: Doubly phenoxo-hydroxo-bridged dicopper(II) complexes: individual contributions of the bridges to antiferromagnetic coupling based on two related biomimetic models for catechol oxidases.
abstract: This paper describes the synthesis, structure and spectroscopic and magnetic properties of two (μ-phenoxo)(μ-hydroxo)dicopper(II) complexes (1 and 2) which contain similar N,O-donor atoms but with distinct coordination arrangements around the Cu(II) centers. Structural and magnetic studies of 1 and 2 allowed us to evaluate, for the first time, the individual contributions of the {Cu(μ-phenoxo)Cu} and {Cu(μ-hydroxo)Cu} structural units to the antiferromagnetic coupling between the Cu(II) centers in these complexes.
authors.affiliation: Departamento de Química-CFM-Universidade Federal de Santa Catarina, Campus Trindade, 88040-900-Florianópolis-SC, Brazil.
authors.forename: Nicolás A
authors.initials: NA
authors.lastname: Rey
authors.forename: Ademir
authors.initials: A
authors.lastname: Neves
authors.forename: Adailton J
authors.initials: AJ
authors.lastname: Bortoluzzi
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Haase
authors.forename: Zbigniew
authors.initials: Z
authors.lastname: Tomkowicz
mesh_terms: D001554:Benzene / Q000737:chemistry; D040761:Biomimetic Materials / Q000138:chemical synthesis / Q000737:chemistry*; D004156:Catechol Oxidase / Q000737:chemistry / Q000378:metabolism; D003300:Copper / Q000737:chemistry*; D060328:Magnetic Phenomena; D008958:Models, Molecular; D008968:Molecular Conformation; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D009942:Organometallic Compounds; D003300:Copper; D004156:Catechol Oxidase; D001554:Benzene