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Inne
Unique direct synthesis of cyanide-bridged Fe2Cu2 molecular squares by destruction of sodium nitroprusside.
Autorzy
Rok wydania
2009
Czasopismo
Inorganic Chemistry Communications
Numer woluminu
12
Strony
890-894
DOI
10.1016/j.inoche.2009.07.006
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The one-pot reaction of copper powder, sodium nitroprusside, ammonium thiocyanate and 2,2′-bipyridine (bpy) in acetonitrile solution at ambient conditions of air and water yields the novel heterometallic [Fe2Cu2(bpy)6(μ-CN)4(NCS)2]2[Fe(CN)5(NO)](NCS)2·5H2O complex 1, which has been structurally and magnetically characterized. The most prominent feature of this complex is the unique tetranuclear squares comprised [Cu(bpy)NCS]+ and [Fe(bpy)2]2+ corners with CN edges. The Cu⋯Cu and Fe⋯Fe separations are ∼6.72 and ∼7.73 Å, respectively. The variable-temperature magnetic susceptibility study revealed that a very weak antiferromagnetic coupling is active between Cu(II) centers (JCuCu = −0.37 cm−1).
Adres publiczny
https://doi.org/10.1016/j.inoche.2009.07.006
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