A General Model of Sensitized Luminescence in Lanthanide-Based Coordination Polymers and Metal–Organic Framework Materials,Inorganic Chemistry

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A General Model of Sensitized Luminescence in Lanthanide-Based Coordination Polymers and Metal–Organic Framework Materials
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2017-05-02 00:00:00 , DOI: 10.1021/acs.inorgchem.6b02838
Jeffrey D. Einkauf ₁ , Jessica M. Clark ₁ , Alec Paulive ₁ , Garrett P. Tanner ₁ , Daniel T. de Lill ₁

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Luminescent lanthanides containing coordination polymers and metal–organic frameworks hold great potential in many applications due to their distinctive spectroscopic properties. While the ability to design coordination polymers for specific functions is often mentioned as a major benefit bestowed on these compounds, the lack of a meaningful understanding of the luminescence in lanthanide coordination polymers remains a significant challenge toward functional design. Currently, the study of these compounds is based on the antenna effect as derived from molecular systems, where organic antennae are used to facilitate lanthanide-centered luminescence. This molecular-based approach does not take into account the unique features of extended network solids, particularly the formation of band structure. While guidelines for the antenna effect are well established, they require modification before being applied to coordination polymers. A series of nine coordination polymers with varying topologies and organic linkers were studied to investigate the accuracy of the antenna effect in coordination polymer systems. By comparing a molecular-based approach to a band-based one, it was determined that the band structure that occurs in aggregated organic solids needs to be considered when evaluating the luminescence of lanthanide coordination polymers.

中文翻译：

镧系元素配位聚合物和金属有机骨架材料中敏化发光的一般模型

包含配位聚合物和金属有机骨架的发光镧系元素由于其独特的光谱特性而在许多应用中具有巨大的潜力。尽管通常提到设计具有特定功能的配位聚合物的能力是这些化合物的主要优点，但对镧系配位聚合物的发光缺乏有意义的理解仍然是功能设计的重大挑战。当前，对这些化合物的研究基于分子系统产生的天线效应，其中有机天线用于促进以镧系元素为中心的发光。这种基于分子的方法没有考虑到扩展网络固体的独特特征，特别是带结构的形成。虽然已经很好地确定了天线效应的准则，但在将其应用于配位聚合物之前需要对其进行修改。研究了一系列具有不同拓扑结构和有机连接基的九种配位聚合物，以研究配位聚合物系统中天线效应的准确性。通过将基于分子的方法与基于能带的方法进行比较，可以确定在评估镧系元素配位聚合物的发光时需要考虑聚集有机固体中出现的能带结构。

更新日期：2017-05-02

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