“…Thermal amorphisation, assumed to involve the breakage and reformation of M–L bonds (M = metal cation, L = organic ligand), is limited to certain MOFs because of the high enthalpy of crystallisation and structural reordering, relative to their low decomposition temperatures, T d . 34 The same challenge is observed with forming MQG, as the melting temperature, T m , of MOFs is often greater than their temperature of decomposition. Several a g MOFs are reported in the literature, with a large majority based on zeolitic imidazolate frameworks (ZIFs).…”