LIESST effect was also observed for this complex, and it is also very sensitive to the applied external pressure. The transition temperature is found to shift to a higher temperature with applying more pressure, which happened due to the increase of the energy gap between t2g and eg levels upon applying pressure (Fig. ). Dielectric measurements revealed a 25 K wide thermal hysteresis and the real part of the dielectric constant changes from 3.4 to 5.3 at 0.5 kHz (Fig. ).