Solid-state magnetic measurements were carried out the fresh crystals to inquire about the SCO properties of complex 6. At temperatures 293 K and 153 K, the results are in agreement with the Fe(II) system in the HS state (Fig. ). For the desolvated sample 6-d, the T vs. T plot revealed a SCO behavior. At 300 K, the T value for 6-d is 3.48 cm 3 mol -1 K, corresponding to Fe(II) HS state. Upon decreasing temperature, the T value slowly decreases to 1.78 cm 3 mol -1 K at 60 K.