论文标题
克服有机脏物的受控热沉积中的挑战
Overcoming the challenges in controlled thermal deposition of organic diradicals
论文作者
论文摘要
我们已经证明，有可能在获得薄膜的受控环境中蒸发脏物，其中保留了圆形特征。但是，蒸发代表了一个挑战。即使在非常稳定的单个自由基的情况下，两个自由基位点的存在使分子更具反应性。我们已经探索了在这种现象中发挥作用的参数。散装形成热力学和未配对电子的定位起着主要作用。晶体的形成能越高，完整自由基的蒸发就越困难。离域化越大，薄膜暴露于空气中就越稳定。考虑到我们的发现，可以成功解决不同自由基的蒸发，也可以成功解决。
We have demonstrated that it is possible to evaporate diradicals in a controlled environment obtaining thin films in which the diradical character is preserved. However, evaporation represents a challenge. The presence of two radical sites makes the molecules more reactive, even in case of very stable single radicals. We have explored the parameters that play a role in this phenomenon. Bulk formation thermodynamics and delocalisation of the unpaired electrons play the major role. The higher the formation energies of the crystal, the more difficult is the evaporation of intact radicals. The larger the delocalization, the more stable is the film exposed to air. The evaporation of different radicals, also with a larger number of radical sites can be successfully addressed considering our findings.
