Novel example of a chain structure formed by 1,4-dioxane and cobalt(II) links. Chain [Co-3(mu-OOCCF3)(4)(mu-H2O)(2)(OOCCF3)(2)(H2O)(2)(C4H8O2)]center dot 2C(4)H(8)O(2)

Calvo-Perez, V; Ostrovsky, S; Vega A.; Pelikan, J; Spodine, E.; Haase, W.

Abstract

The trimer [Co3(μ-OOCCF3)4(μ-H 2O)2(OOCCF3)2(H2O) 2(C4H8O2)]·2C 4H8O2 (1) is composed of three tetragonally distorted CoII centers bridged by four trifluoroacetates and two bridging water molecules. 1,4-Dioxane is coordinated at a distance of 2.120(3) Å from the terminal cobalt Co2; the remaining oxygen of this 1,4-dioxane links the terminal cobalt to a neighbor trimer, forming a one-dimensional chain. The crystal structure displays a network of hydrogen bonds between four noncoordinated 1,4-dioxane molecules and the coordinated terminal water molecules. The magnetic properties of 1 were analyzed with the use of the Hamiltonian including isotropic exchange interactions between real spins of a high-spin CoII, spin-orbit coupling and a low-symmetry crystal field acting within the 4T1g ground manifold of each cobalt ion. A weak antiferromagnetic exchange interaction between cobalt ions in 1 was found. The results of the magnetic model are in good agreement with the experimental observations. © 2006 American Chemical Society.

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Título según WOS: Novel example of a chain structure formed by 1,4-dioxane and cobalt(II) links. Chain [Co-3(mu-OOCCF3)(4)(mu-H2O)(2)(OOCCF3)(2)(H2O)(2)(C4H8O2)]center dot 2C(4)H(8)O(2)
Título según SCOPUS: Novel example of a chain structure formed by 1,4-dioxane and cobalt(II) links. Chain [Co3(µ-OOCCF3)4(µ-H 2O)2(OOCCF3)2(H2O) 2(C4H8O2)]·2C 4H8O2
Título de la Revista: INORGANIC CHEMISTRY
Volumen: 45
Número: 2
Editorial: American Chemical Society
Fecha de publicación: 2006
Página de inicio: 644
Página final: 649
Idioma: English
URL: http://pubs.acs.org/doi/abs/10.1021/ic051361o
DOI:

10.1021/ic051361o

Notas: ISI, SCOPUS