The shift in the T1/2 to a higher temperature, along with a more gradual profile of T vs T as a function of applied pressure, follows the Clausius-Clapeyron law. The probable reason for the hysteretic spin state switching with an increase in pressure could be the combined effect of reducing the interelectronic repulsion brought about by the compact packing of molecules upon increasing the pressure, which can lead to enhanced cooperativity in the system.