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Título

An Oxide-Centered Trinuclear Manganese(III) Compound with a Bulky Phenol-Pyrazolate Ligand

AutorViciano-Chumillas, M.; Roubeau, Olivier; Jongh, L. J. de; Reedijk, Jan
Fecha de publicación2010
EditorWiley-VCH
CitaciónEuropean Journal of Inorganic Chemistry 6: 947-951 (2010)
ResumenA new oxide-centered trinuclear manganese(III) compound with the formula [Mn3(μ3-O)(naphpz)3(O2CMe)(MeOH)2]n (1) {H2naphpz = 2-[1H-pyrazol-5(3)-yl]naphthalen-1-ol} has been synthesized and characterized. Three bulky doubly deprotonated phenol-pyrazole ligands are coordinated to the three manganese(III) ions with a μ3-oxide bridge in the same plane. Methanol and acetate ligands are at the apical positions of the manganese(III) ions. The trinuclear units are bridged by acetate ligands in the anti-anti mode, leading to the formation of 1-D chains. Temperature-dependent magnetic susceptibility studies indicate the presence of overall antiferromagnetic interactions with magnetic exchange constants of J1 ≈ –1.9 and J2 ≈ –5.5 cm–1 and g = 1.91. Weak antiferromagnetic interactions (zJ′ = –0.37 cm–1) between the trinuclear units in the 1-D chain (and between the chains) in compound 1 are present.
URIhttp://hdl.handle.net/10261/52260
DOI10.1002/ejic.200901007
Identificadoresdoi: 10.1002/ejic.200901007
issn: 1434-1948
e-issn: 1099-0682
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