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Castro, M.A.; Rusjan, M.; Vega, D.; Peña, O.; Weyhermüller, T.; Cukiernik, F.D.; Slep, L.D. "An unexpected carboxylato-bridged-only hexanuclear copper compound" (2011) Inorganica Chimica Acta. 374(1):499-505
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Abstract:

The reaction of copper acetate with 3,4,5-tri(ethoxy)benzoic acid leads to the formation of dodecakis((μ-(3,4,5-tri(ethoxy))benzoato- κ 2 O:O′)-hexa(copper(II)), [Cu 6 (O 2 C≡C 6 H 2 (OCH 2 CH 3 ) 3 ) 12 ]. The new compound crystallizes in the triclinic system, space group P1̄ with Z = 2, solvated by disordered cyclohexane molecules. The Cu(II) ions are placed in O 5 pentacoordinated environments provided by four carboxylate oxygen atoms in a pseudo square planar arrangement and a fifth oxygen atom that belongs to a more distant carboxylate group in the axial position. The Cu(II) centers occupy the corners of a trigonal antiprism. A carboxylato network links each copper center with other four, providing potential paths for exchange coupling between the Cu(II) centers. Variable temperature magnetic susceptibility measurements show a maximum at 8 K. An analysis based on the spin-Hamiltonian formalism and DFT-based broken symmetry computations provides insight into the magnetic exchange interactions between the metal centers. © 2011 Elsevier B.V. All rights reserved.

Registro:

Documento: Artículo
Título:An unexpected carboxylato-bridged-only hexanuclear copper compound
Autor:Castro, M.A.; Rusjan, M.; Vega, D.; Peña, O.; Weyhermüller, T.; Cukiernik, F.D.; Slep, L.D.
Filiación:Departamento de Química Inorgánica, Analítica y Química Física, INQUIMAE, Pabellón 2, C1428EHA Buenos Aires, Argentina
Departamento de Física de la Materia Condensada, Comisión Nacional de Energía Atómica (CNEA), Av. Gral Paz 1499, 1650 San Martín, Pcia. de Buenos Aires, Argentina
UMR 6226 CNRS, Sciences Chimiques de Rennes, Université de Rennes 1, 35042 Rennes, France
Max-Planck-Institut für Bioanorganische Chemie, Stiftstraße 34-36, D-45470 Mülheim an der Ruhr, Germany
Palabras clave:Broken symmetry; Copper carboxylates; Metal clusters; Molecular magnetism
Año:2011
Volumen:374
Número:1
Página de inicio:499
Página de fin:505
DOI: http://dx.doi.org/10.1016/j.ica.2011.03.025
Título revista:Inorganica Chimica Acta
Título revista abreviado:Inorg. Chim. Acta
ISSN:00201693
CODEN:ICHAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00201693_v374_n1_p499_Castro

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Citas:

---------- APA ----------
Castro, M.A., Rusjan, M., Vega, D., Peña, O., Weyhermüller, T., Cukiernik, F.D. & Slep, L.D. (2011) . An unexpected carboxylato-bridged-only hexanuclear copper compound. Inorganica Chimica Acta, 374(1), 499-505.
http://dx.doi.org/10.1016/j.ica.2011.03.025
---------- CHICAGO ----------
Castro, M.A., Rusjan, M., Vega, D., Peña, O., Weyhermüller, T., Cukiernik, F.D., et al. "An unexpected carboxylato-bridged-only hexanuclear copper compound" . Inorganica Chimica Acta 374, no. 1 (2011) : 499-505.
http://dx.doi.org/10.1016/j.ica.2011.03.025
---------- MLA ----------
Castro, M.A., Rusjan, M., Vega, D., Peña, O., Weyhermüller, T., Cukiernik, F.D., et al. "An unexpected carboxylato-bridged-only hexanuclear copper compound" . Inorganica Chimica Acta, vol. 374, no. 1, 2011, pp. 499-505.
http://dx.doi.org/10.1016/j.ica.2011.03.025
---------- VANCOUVER ----------
Castro, M.A., Rusjan, M., Vega, D., Peña, O., Weyhermüller, T., Cukiernik, F.D., et al. An unexpected carboxylato-bridged-only hexanuclear copper compound. Inorg. Chim. Acta. 2011;374(1):499-505.
http://dx.doi.org/10.1016/j.ica.2011.03.025