Binuclear heterometallic M(iii)–Mn(ii) (M = Fe, Cr) oxalate-bridged complexes associated with a bisamidinium dication: a structural and magnetic study - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue New Journal of Chemistry Année : 2011

Binuclear heterometallic M(iii)–Mn(ii) (M = Fe, Cr) oxalate-bridged complexes associated with a bisamidinium dication: a structural and magnetic study

Résumé

Two heterometallic oxalate-bridged dinuclear anions associated with a non-H-bond donor bisamidinium cation (Cat 2+), leading to compounds of formula Cat[Mn II (H 2 O) 4 M III (ox) 3 ] 2 Á6H 2 O (M = Fe (1) and Cr (2)), are presented. Their structural analysis reveals that the anion is the combination of a tris(oxalato)metallate(III) moiety with a tetra(aqua)manganese(II) entity. A 3D H-bonded network is formed between the crystallisation and coordination water molecules and the terminal and bridging oxalate ligands. The exchange interaction between both metal ions mediated by the oxalate bridge is À4.9 cm À1 for 1 and +1.6 cm À1 for 2 (H = ÀJS 1 S 2).
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hal-02301251 , version 1 (27-11-2020)

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Catalin Maxim, Sylvie Ferlay, Cyrille Train. Binuclear heterometallic M(iii)–Mn(ii) (M = Fe, Cr) oxalate-bridged complexes associated with a bisamidinium dication: a structural and magnetic study. New Journal of Chemistry, 2011, 35 (6), pp.1254. ⟨10.1039/C0NJ00976H⟩. ⟨hal-02301251⟩
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