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Nguyen, T. L. A., Devic, T., Mialane, P., Riviere, E., Sonnauer, A., Stock, N., Demir-Cakan, R., Morcrette, M., Livage, C., Marrot, J., Tarascon, J.-M. & Ferey, G. (2010) Reinvestigation of the M-II (M = Ni, Co)/TetraThiafulvaleneTetraCarboxylate System Using High-Throughput Methods: Isolation of a Molecular Complex and Its Single-Crystal-to-Single-Crystal Transformation to a Two-Dimensional Coordination Polymer. INORGANIC CHEMISTRY, 49 10710–10717. 
Added by: Richard Baschera (2017-03-01 08:48:23)
Type de référence: Article
DOI: {10.1021/ic101906u}
Numéro d'identification (ISBN etc.): {0020-1669}
Clé BibTeX: Nguyen{2010}
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Catégories: HORSIMN
Créateurs: Demir-Cakan, Devic, Ferey, Livage, Marrot, Mialane, Morcrette, Nguyen, Riviere, Sonnauer, Stock, Tarascon
Consultations : 12/466
Indice de consultation : 1%
Indice de popularité : 0.25%
{A high-throughput methodology combined with X-ray powder diffraction measurements was used to investigate the reactivity of the TetraThiaFulvalene TetraCarboxylic acid ((TTF-TC)H-4) with divalent metals (M = Ni, Co) under various reaction conditions (stoichiometry, pH, temperature). Two new crystalline phases were identified and then studied by single crystal X-ray diffraction. Whereas the first one appears to be a simple salt, the second one, formulated {{[}M(H2O)(4)](2)(TTF-TC)}center dot 4H(2)O, is built of 2:1 M:TTF-TC molecular complexes and labeled MIL-136(Ni, Co) (MIL stands for Materials Institute Lavoisier). The combination of thermogravimetric analysis and thermodiffraction studies reveals that MIL-136(Ni) exhibits a complex dehydration behavior. Indeed, a partial dehydration/rehydration process led to the single-crystal-to-single-crystal transformation of the molecular compound in a two-dimensional coordination polymer formulated {{[}Ni-2(H2O)(5)(TTF-TC)]}center dot H2O (MIL-136'(Ni)). Magnetic and redox properties of MIL-136(Ni, Co) were investigated. Magnetic measurements indicate that all the magnetic coupling, intra- and intermolecular, are very weak; thus, the magnetic data of MIL-136(Ni, Co) have been interpreted in term of single-ion spin orbit coupling. Solid state cyclic voltammetry of MIL-136(Ni, Co) presents three reversible waves which were assigned to the redox activity of the TTF core and the metallic cations. In contrast to solids based on TTF linkers and alkaline ions, the MIL-136(Ni, Co) complexes do not act as excellent positive electrode materials for Li batteries, but present two reversible electron oxidation of the TTF core. These observations were tentatively related to the strength of the metal-carboxylate bond.}
Added by: Richard Baschera  
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