Bicalho Hudson A, Copeman Christopher, Barbosa Helliomar P, Rafael Donnarumma P, Davis Zoey, Quezada-Novoa Victor, Velazquez-Garcia Jose de J, Liu Nan, Hemmer Eva, Howarth Ashlee J
Department of Chemistry and Biochemistry, Concordia University, 7141 Sherbrooke St W., Montréal, QC, Canada.
Centre for NanoScience Research, Concordia University, Montréal, QC, Canada.
Chemistry. 2024 Oct 28;30(60):e202402363. doi: 10.1002/chem.202402363. Epub 2024 Sep 24.
In this work, nine new rare-earth metal-organic frameworks (RE-MOFs, where RE=Lu(III), Yb(III), Tm(III), Er(III), Ho(III), Dy(III), Tb(III), Gd(III), and Eu(III)) isostructural to Zr-MOF-808 are synthesized, characterized, and studied regarding their photophysical properties. Materials with high crystallinity and surface area are obtained from a reproducible synthetic procedure that involves the use of two fluorinated modulators. At the same time, these new RE-MOFs display tunable photoluminescent properties due to efficient linker-to-metal energy transfer promoted by the antenna effect, resulting in a series of RE-MOFs displaying lanthanoid-based emissions spanning the visible and near-infrared regions of the electromagnetic spectrum.
在这项工作中，合成了9种与Zr-MOF-808同构的新型稀土金属有机框架材料（RE-MOFs，其中RE = 镥（III）、镱（III）、铥（III）、铒（III）、钬（III）、镝（III）、铽（III）、钆（III）和铕（III）），对其进行了表征，并研究了它们的光物理性质。通过一种可重复的合成方法获得了具有高结晶度和高表面积的材料，该方法涉及使用两种氟化调节剂。同时，由于天线效应促进了配体到金属的高效能量转移，这些新型RE-MOFs表现出可调谐的光致发光性质，从而产生了一系列在电磁光谱的可见光和近红外区域呈现基于镧系元素发射的RE-MOFs。
