Stereocontrolled Self-Assembly of Ln(III)–Pt(II) Heterometallic Cages with Temperature-Dependent Luminescence
作者:Qiang-Yu Zhu、Li-Peng Zhou、Li-Xuan Cai、Shao-Jun Hu、Xiao-Zhen Li、Qing-Fu Sun
DOI:10.1021/acs.inorgchem.2c02718
日期:2022.10.24
Structurally well-defined discrete d/f heterometallic complexes show diverse application potential in electrooptic and magnetic materials. However, precise control of the component and topology of such heterometallic compounds with fine-tuned photophysical properties is still challenging. Herein, we report the stereocontrolled syntheses of a series of LnIII–PtII heterometallic cages through coordination-driven
结构明确的离散 d/f 异质金属配合物在电光和磁性材料中显示出不同的应用潜力。然而,精确控制这种具有微调光物理性质的异金属化合物的成分和拓扑结构仍然具有挑战性。在此,我们报道了一系列 Ln III -Pt II异质金属笼的立体控制合成,通过对映纯炔基铂基金属配体 (L 1 R / S , L 2 R / S ) 与镧系元素离子 (Ln = Eu III , Yb III , Nd III , Lu III)。利用设计的炔基铂配体上的金属-配体电荷转移 (MLCT) 激发态,可以将含 Yb III和 Nd III笼上的敏化近红外 (NIR) 发光的激发窗口扩展到可见区域(高达 500 nm)。在 Ln 4 (L 2 R / S ) 6 (Ln III = Eu III和 Yb III ) 配合物上观察到的线性温度相关的红色和 NIR 发射表明它们具有作为发光温度传感器的潜在应用,灵敏度为 -0