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可调节的混合兰坦化MOF双发射,没有天线效应

Franco Castro¹, Fernando Igoa Saldaña¹, Mariela Pistón²

¹Área Química Inorgánica, Departamento Estrella Campos (DEC), Facultad de Química, Universidad de la República, Gral. Flores 2124, 11400, Montevideo, Uruguay.

Chemistry, an Asian journal

|February 24, 2025

概括

新的金属有机框架 (MOFs) 含有和化物被合成. 这些材料表现出可调节的双发射发光,允许通过准特定的丹化物激发波长来控制色彩输出.

科学领域:

材料科学材料科学材料科学
无机化学无机化学
晶体学晶体学是指结晶学.

背景情况:

金属有机框架 (MOF) 为各种应用提供可调节的特性.
包含兰坦化物的异核MOF因其发光特性而引起人们的兴趣.

研究的目的:

为了合成和表征新型异核:混合兰坦化:金属有机框架 (MOFs).
研究这些合成的MOF的发光特性,特别是双重发射.

主要方法:

金属离子盐和氧化乙酸盐在水溶液中的直接反应,然后是溶剂扩散.
单晶X射线衍射用于结构特征.
微波诱导等离子体原子发射光谱仪用于确定金属的数比.

主要成果:

13个纯晶体,同结构六角MOF的隔离.
经过实验确定的金属摩尔比率系统地高于预期,特别是在大尺寸差异的兰坦化物中.
有着可见发射兰坦化物 (Sm,Eu,Tb,Dy) 组合的化合物表现出双发射发光.
可调色色发光,通过准特定的丁化物激发波长来实现.
CeEu和GdEu混合MOF显示双排放,即使只有Gd被激发,GdEu也会表现出双排放.

结论:

合成策略成功地产生了新的异核(II):混合-兰坦化物(III) MOFs.
这些MOF显示可调节的双发射发光,为照明和传感领域的应用提供了潜力.
观察到的发光量取决于特定的兰坦化物组合及其激发波长.

关键词:

协调化学协调化学晶体结构晶体结构发光效应的发光效应混合的兰他化物.

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