MOF-5 (IRMOF-1) Zn4O framework structure without organic linkers. Space group Fm-3m (225), a=25.832 Å. 8 Zn4O clusters at 8c positions with 32 Zn at 32f. Built from crystallographic data in Li & Ahlquist, npj Comput. Mater. (2026). For MLIP symmetry preservation testing on open-framework structures.
Cell + Ionic relaxation with CHGNet; 0.05 eV/Å threshold; final energy = -76.0155 eV; energy change = -0.7555 eV; symmetry: Fm-3m → Fm-3m
Cell + Ionic relaxation with Orb v3 conservative inf MPA; 0.05 eV/Å threshold; final energy = -48.5443 eV; energy change = -2.7655 eV; symmetry: Fm-3m → Fm-3m
Cross-cycle comparison of MLIP symmetry behavior on MOF open frameworks vs dense intermetallics. MOFBuilder paper (Li & Ahlquist, npj Comput. Mater. 2026) structures tested through Orb v3 and CHGNet.