We have used the fluorescence detection of phase transformation dynamics of organic compounds by photochemical methods to observe a real-time symmetry breaking process. The organic fluorescent molecules vary the fluorescence spectra depending on molecular aggregated states, implying fluorescence spectroscopy can be applied to probe the evolution of the molecular-assembling process. As an example, the amorphous-to-crystal phase transformation and crystallization with symmetry breaking at droplet during the solvent evaporation of mechanofluorochromic molecules are represented in this review.

中文翻译：

---

用于实时观察结晶时相变过程的光化学方法

我们使用光化学方法对有机化合物的相变动力学进行荧光检测，以观察实时对称性破坏过程。有机荧光分子根据分子聚集状态改变荧光光谱，这意味着荧光光谱可用于探测分子组装过程的演变。例如，本文介绍了在机械氟致变色分子的溶剂蒸发过程中，非晶到晶体的相变和结晶在液滴处对称性破坏。