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VOLUME 19 (1974) | ISSUE 9 | PAGE 560
Phase transition in paramagnetic complexes of thiosemicarbazones of Fe(lll)
We measured the magnetic susceptibility and the specific heat of the complexes ΑΙο^ΓΡββ —Cl/Asa)J (I) and H[Fe(5-Clihsa)J (II). A phase transition of the λ type is observed at ГС=228°К (I) or -226 °K (II). The compounds have a low spin (μ<!|Γ=2.45μΒ) at T<TC, they have a high spin (μ.Λ=5.62μβ) and at T>TC.