title: An S = 12 semiquinoid radical-bridged Mn6 wheel complex assembled from an asymmetric redox-active bridging ligand.
abstract: The asymmetric redox-active ligand 4,5-bis(pyridine-2-carboxamido)-1,2-catechol ((N,O)LH4) is prepared and metalated to afford the hexanuclear complex [Mn6((N,O)L)6](6-). Structural analysis and magnetic measurements reveal this complex to feature Mn(II) ions bridged by (N,O)L(3-)˙ radicals, which are antiferromagnetically coupled to give an S = 12 ground state.
authors.affiliation: Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113, USA. dharris@northwestern.edu.
authors.forename: Ie-Rang
authors.initials: IeR
authors.lastname: Jeon
authors.affiliation: Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113, USA. dharris@northwestern.edu.
authors.forename: T David
authors.initials: TD
authors.lastname: Harris