Cyanide bridged tetranuclear complex with a novel terthiophene based ligand
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A new terthiophene based ligand (L = 3-(2-pryridyl)-5-(2,2′:5′,2″-terthien-3′-yl) pyrazole was synthesized. The reaction of Ni(BF4)2·6H2O, L and nBu4N[Fe(CN)3tp∗] (tp∗ = tris(3,5-dimethylpyrazol-1-yl)borohyrdide) with NaBPh4 in MeOH/acetone yielded a cyanide bridged tetranuclear complex [Fe2Ni2(CN)6(tp∗)2(L)4](BPh4)2 (1). The electrochemical properties of both 1 and L were investigated, and magnetic susceptibility measurements of 1 were conducted, revealing that ferromagnetic interactions were operative within the tetranuclear core.
Polyhedron 30(18), 3245-3248, 2011-11