Xue-Ting Wang, Fang-Wen Lv, Hang Qin, Xin-Tong Dai, Shan Jin and Xiu-Ying Zheng
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引用次数: 0
摘要
精确设计和控制具有大不对称系数(glum)和高量子产率(Φlum)值的圆偏振发光(CPL)材料的合成是一个关键的科学挑战。本研究利用手性配体和发光π共轭体系作为混合配体,通过调节分子内和分子间的相互作用,形成了手性螺旋聚合物R/S-Ln-phen (Ln = Eu/Tb)。该方法旨在增强手性和提高发光效率。化合物R/ s - eul -phen和R/S-Tb-phen具有极高的Φlum值(R/ s - eul -phen为86.88%,R/S-Tb-phen为88.93%)和较大的glum值(≈10−3)。
Amplified circularly polarized luminescence of chiral lanthanide-based chains through helical assembly†
Accurately designing and controlling the synthesis of circularly polarized luminescent (CPL) materials with both large asymmetry factor (glum) and high quantum yield (Φlum) values is a key scientific challenge. In this study, chiral ligands and luminescent π-conjugated systems are utilized as mixed ligands to form chiral helical polymers R/S-Ln-phen (Ln = Eu/Tb) by the regulation of intramolecular and intermolecular interactions. This approach aims to amplify the chirality and enhance luminescence efficiency. The compounds R/S-Eu-phen and R/S-Tb-phen demonstrated extremely high Φlum (86.88% for R/S-Eu-phen and 88.93% for R/S-Tb-phen) and relatively large glum (≈10−3) values.