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Manganese clusters derived from a 2,6-diacetylpyridine dioximato ligand: structure and magnetic study

AuthorsEscuer, A.; Cordero, Beatriz; Calvet, Teresa; Roubeau, Olivier; Teat, Simon J.
Issue Date2010
PublisherRoyal Society of Chemistry (UK)
CitationDalton Transactions 39(20): 4817-4825 (2010)
AbstractReactions of 2,6-diacetylpyridine dioxime (dapdoH2) with Mn(NO3)2 or Mn(SO3CF3)2 under a variety of conditions or co-ligands yield compounds with the formula [Mn6O2(OMe)2(dapdo)2(dapdoH)4](X)2 in which X = NO3 - (1) or SO3CF3 - (2), [Mn8O2(dapdo)6(NO3)2]•H2O (3) and [Mn(dapdoH2)(N3)2]n (4). Compounds 1, 3 and 4 were structurally characterized and equivalent structures for 1 and 2 were inferred from spectroscopic and analytical results. Compounds 1 and 2 consist of hexanuclear Mn2 II Mn4 III complexes whereas 3 consists of an octanuclearMn6 II Mn2III cluster in which the manganese atoms exhibit a rare bicapped elongated octahedral topology. Compound 4 consists of a 1D system bridged by double end-on azido ligands. Variable temperature magnetic studies were performed between 2–300 K, confirming the ground state S = 5 for 1 and 2, S = 0 for 3 and ferromagnetic response for 4.
Identifiersdoi: 10.1039/B924977J
issn: 1477-9226
e-issn: 1477-9234
Appears in Collections:(ICMA) Artículos
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