Fig. 4.

Using pressure as a stimulus to access the metastable cp/lp coexistence regions in DMOF-1(Zn). a Free enthalpy and c pressure equations of state, with b indication of the metastable ($n_{\mathrm{cp}}$,$n_{\mathrm{lp}}$) phase coexistence regions as a function of the volume for an 8 × 2 × 8 mesocell of DMOF-1(Zn) at 300 K. The different (meta)stable states and transition states at different pressures are indicated on the free enthalpy equations of state with (open) circles and crosses, respectively. d The material’s response upon two different pressure treatments is predicted: a constant-pressure treatment (green) and a pressure quenching treatment (blue), demonstrating how the latter leads to a stabilized (2,6) phase coexistence. The 0 MPa free enthalpy profile is globally shifted over +60 kJ mol⁻¹ to aid the visualization