We showed above that the MLP we have produced provides a very accurate description of the structures of ZIF-4 in the crystal, glass and liquid phase. In order to further test its robustness and stability, we wanted to check whether it could be used in a broad thermodynamic space, to simulate the melt-quench process and generate new glass models. We followed the methodology established for ReaxFF glasses in Ref. 15: we generated glass models and then compared their properties to ab initio data to evaluate the applicability of the MLP for this task, for which no satisfactory microscopic model has been published to date. 6