In Chem. Mater. 33 (2021) 2019, I addressed why the evaporation of diradicals is difficult and how to choose them to have intact radical thin films. I also elucidate why the multi-radical thin films have a shorter lifetime. I demonstrated that it is possible to evaporate various diradicals in a controlled environment obtaining thin films in which the diradical character is preserved. The presence of two radical sites makes the molecules more reactive, also if the pristine single radicals are very stable. I have explored the parameters that play a role in this phenomenon. I find that the higher the formation energies of the crystal, the more difficult the evaporation of intact radicals is. Large delocalization of unpaired electrons helps the diradical to stand evaporation. This means that diradicals containing nitronyl nitroxide radical derivatives are weaker than Blatter diradical derivatives. I have also investigated the lifetime of the films when exposed to X-rays or air. The onset of thermal degradation plays a role in the film's lifetime. In fact, the lower the evaporation temperature with respect to the onset tem-perature, the longer the film's lifetime. The evaporation of different diradicals can be successfully addressed considering these findings.