Energetic data are commonly derived from sublimation enthalpy experiments. Sublimation enthalpies are usually obtained at room or elevated temperatures and contributions from vibrational effects can be quite significant. As such, there are a number of issues with the use of sublimation enthalpy data within this context. Firstly, the results of sublimation enthalpy experiments lack consistency. The standard deviation of reported sublimation enthalpies across experiments is estimated in the region of ±4.9 kJ/mol , and in some cases uncertainties have been estimated to be as large as ±10 kJ/mol . This may be as a result of impurities in the samples, or differences in the experimental methods used. Second, a simple thermal correction is often used to negate vibrational effects . By comparison to DFT-D lattice dynamics calculations , typical errors in the thermal correction are over 2 kJ/mol on average, and sometimes as large as 6 kJ/mol. As such, the precise determination of reference lattice energies from sublimation enthalpies is marred by much uncertainty. This problem is further compounded by the fact that trustworthy sublimation enthalpy results are often in short supply. This scarcity of data is particularly apparent for organic compounds containing a mixture of 'less common' elements beyond carbon, hydrogen, nitrogen, and oxygen. That being said, even amongst the 'more common' elements, curation of sufficiently large and reliable training sets is challenging and studies are often limited to including only a few energetic data points in the training set .