摘要
Four crystals A–D based on a structurally simple ESIPT-active molecule 4MPP were obtained by subtly controlling the crystallization conditions. Notably, crystals A and C display single emission bands, which correspond to the keto＊（K＊） and enol＊（E＊） emission, respectively. B and D exhibit dual emission with different proportion of E＊/K＊ emissions while D sucessfully achieves white emssion. The distinctively different emission properties of A–D is mainly because of the change in crystal structures. In addition, A displays amplified spontaneous emission, which indicates its potential as single crystal lasers.
Four crystals A–D based on a structurally simple ESIPT-active molecule 4MPP were obtained by subtly controlling the crystallization conditions. Notably, crystals A and C display single emission bands, which correspond to the keto＊（K＊） and enol＊（E＊） emission, respectively. B and D exhibit dual emission with different proportion of E＊/K＊ emissions while D sucessfully achieves white emssion. The distinctively different emission properties of A–D is mainly because of the change in crystal structures. In addition, A displays amplified spontaneous emission, which indicates its potential as single crystal lasers.
基金
supported by the National Natural Science Foundation of China (Nos. 51622304 and 51773077)
