Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, No. 2 ZhongGuanCun BeiYiJie, Beijing, 100190, P. R. China.
CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, Division of Nanophotonics, National Center for Nanoscience and Technology (NCNST), No. 11 ZhongGuanCun BeiYiTiao, Beijing, 100190, P. R. China.
Chemistry. 2018 Nov 27;24(66):17444-17448. doi: 10.1002/chem.201804342. Epub 2018 Nov 7.
Long-persistent circularly polarized phosphorescence (LPCPP) is achieved for the first time in chiral organic ionic crystals at room temperature. The co-crystal composed of terephtalic acid (TPA) and chiral α-phenylethyamines (PEAs) gave rise to LPCPP with lifetimes up to 862 ms and large dissymmetric factor (g ). The hybridization of TPA with chiral PEAs allows circular polarization of the generated long-persistent phosphorescence. The observed mirror-image twisted molecular structures in the rigid lattices were responsible for the chiroptical activation of the generated long-persistent phosphorescence.
首次在室温下的手性有机离子晶体中实现了长持久圆偏振磷光(LPCPP)。由对苯二甲酸(TPA)和手性α-苯乙胺(PEAs)组成的共晶产生了寿命长达 862ms 和大不对称因子(g)的 LPCPP。TPA 与手性 PEAs 的杂化允许生成的长持久磷光的圆偏振。在刚性晶格中观察到的镜像扭曲分子结构负责手性激活生成的长持久磷光。