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Title

A novel bis-β-diketonate ligand stabilizes a [Co(II)8] cage that encapsulates a (μ3-O)⋯H⋯(μ3-O) moiety

AuthorsSalinas-Uber, Jorge; Barrios, L. A.; Roubeau, Olivier; Aromí, Guillem
Issue Date2013
PublisherElsevier
CitationPolyhedron 54: 8-12 (2013)
AbstractThe novel ligand 1,3-bis-(3-oxo-3-(2-hydroxyphenyl)-propionyl)-2-pyridine, H4L, is used here for the first time. In a reaction with Co(II) it produces the complex salt [Co8O(OH)(H2L) 6]NO3 (1), containing an octametallic cluster cation. The topology of this cluster, which encapsulates a rare (μ3-O) ⋯H⋯(μ3-O) at its interior, exhibits a remarkable similarity to the cofactor of nitrogenase FeMoco. It features intramolecular antiferromagnetic interactions, which can be simulated using a spin-only model, yielding an S = 0 spin ground state, lying very close to numerous excited states.
Publisher version (URL)http://dx.doi.org/10.1016/j.poly.2013.02.014
URIhttp://hdl.handle.net/10261/117465
DOI10.1016/j.poly.2013.02.014
ISSN0277-5387
Appears in Collections:(ICMA) Artículos
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