Pressure-Induced Multistep Hysteretic Spin-Crossover Behavior of a Hofmann Coordination Polymer Containing FeN6–Pd(CN)4–FeN4O2 Backbone

spin states, further verified by variable temperature SC-XRD and powder X-ray diffraction. Host-host and host-guest hydrogen-bonding and halogen-π interactions influence the type of elastic interactions and stabilize the intermediate spin state. The impact of hydrostatic pressure on the noncovalent interactions influenced the multistep ST, transforming it into a gradual, single-step ST, with the increase in hysteresis at higher pressures.