Jing Zhang, Jing Li, Xin Feng, Ming Kong, Zhao-Bo Hu, You-Xuan Zheng and You Song
Chem. Commun., 2019,55, 12873-12876
DOI:
10.1039/C9CC05227E,
Communication
A brand new europium(III) β-diketonate complex undergoes a single-crystal-to-single-crystal transformation via [2+2] cycloaddition after UV irradiation, triggering strong Eu(III) red emission turn-on, which is highly photostable even after 50 hours of irradiation. A photo-patterning process is successfully conducted for security printing application in materials science.