Three new isostructural 3D lanthanide metal-organic frameworks (Ln-MOFs), {H[LnL(H2 O)]⋅2 H2 O}n (1-Ln) (Ln=Eu3+ , Gd3+ and Tb3+ ), based on infinite lanthanide-carboxylate chains were constructed by employing an ether-separated 5,5'-oxydiisophthalic acid (H4 L) ligand under solvothermal reaction. 1-Eu and 1-Tb exhibit strong red and green emission, respectively, through the antenna effect, as demonstrated through a combination of calculation and experimental results. Moreover, a series of dichromatic doped 1-Eux Tby MOFs were fabricated by introducing different concentrations of Eu3+ and Tb3+ ions, and they display an unusual variation of luminescent colors from green, yellow, orange to red. 1-Eu with channels decorated by ether O atoms and the open metal sites displays good performance for CO2 capture and conversion between CO2 and epoxides into cyclic carbonates.

中文翻译：

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基于醚修饰的多元羧酸连接基的三种镧系金属有机骨架：发光调节，CO2捕获和转化特性。

基于无限镧系元素-的三个新的等结构3D镧系金属有机骨架（Ln-MOF）{H [LnL（H2 O）]⋅2H2 O} n（1-Ln）（Ln = Eu3 +，Gd3 +和Tb3 +）通过在溶剂热反应下使用醚分离的5,5'-氧基二间苯二甲酸（H4 L）配体来构建羧酸酯链。计算和实验结果相结合，通过天线效应，1-Eu和1-Tb分别显示出强烈的红色和绿色发射。此外，通过引入不同浓度的Eu3 +和Tb3 +离子，制造了一系列双色掺杂的1-Eux Tby MOF，它们显示出从绿色，黄色，橙色到红色的不寻常的发光颜色变化。