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Mixed-metal molecular-based magnets NBu4 MAII1 − n[FeIII(OX)3] (MA=Mn, Fe) were investigated by magnetic and Mössbauer measurements. The magnetic susceptibility of NBu4 [FeIII(OX)3] can be fitted to a Curie-Weiss law with a Weiss paramagnetic Curie temperature of θ = −114.76 K. The negative Weiss constant indicates...
The mixed valence character and the antiferromagnetic coupling in the molecular magnetic materials {[N(n-C4H9)4][MIIFeIII(C2O4)3]}n (M = Co, Mn) were investigated by Mössbauer spectroscopy and magnetic measurements. In the material {[N(n-C4H9)4][CoFe(C2O4)3]}n, the appearence of the spin-glass phase transition temperature and the magnetic phase transition under zero-field-cooled AC magnetic measurements...
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