Controllable Self-Assembly of Two Luminescent Silver(I) Metal–Organic Frameworks Bearing a Tetradentate Ligand
Controllable Self-Assembly of Two Luminescent Silver(I) Metal–Organic Frameworks Bearing a Tetradentate Ligand
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DOI：
10.1021/cg500757a
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发表时间：
2014-08
影响因子：
3.8
通讯作者：
Lingling Mao;Wei Liu;Quan-Wen Li;J. Jia;M. Tong
中科院分区：
文献类型：
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作者：
Lingling Mao;Wei Liu;Quan-Wen Li;J. Jia;M. Tong
发光金属有机框架（M0 F）是有吸引力的。在这方面，染料分子1，2，4，5-四（4-吡啶基）苯（bztpy），一个四齿配体，可以合理地纳入结构和光化学性能的调制作为一个建筑单元。在CuCl存在下，通过bztpy和K[Ag（CN）2]在NH3·H2O/EtOH溶液中的室温反应，成功地合成了两种具有良好发光性能的新型MOFs。在该反应中，CuCl被证明是重要的催化剂，其使得反应物能够在氨的帮助下生成反应性中间体[Ag（NH3）2]Cl。因此，从中间体释放的Ag+离子促进产物1和2的形成。两种化合物之间的转化可以通过简单的操作实现。拓扑研究表明，1属于一个4重互穿的“moganite”网，但2的一个新发现的（3，4）-连接的网络发生与Schlafli符号{62.104}{62.10}2。固体1和固体2的光致发光行为表现出强烈的荧光。
Luminescent metal–organic frameworks (MOFs) are appealing. In this regard, the dye molecule 1,2,4,5-tetra(4-pyridyl)benzene (bztpy), a tetradentate ligand, can be rationally incorporated for the modulation of structures and photochemical properties as a building unit. By reacting bztpy and K[Ag(CN)2] in the presence of CuCl in a solution of NH3·H2O/EtOH at room temperature, we managed to synthesize two novel MOFs exhibiting good luminescent behavior. In the reaction, CuCl was proven to be important as a catalyst, which enables the reactant to generate reactive intermediate [Ag(NH3)2]Cl with the help of ammonia. Thus, Ag+ ions released from intermediate promote the formation of products 1 and 2. Transformation between two compounds can be realized by simple operations. Topology studies reveal that 1 belongs to a 4-fold interpenetrating “moganite” net, but for 2 a new-found (3,4)-connected net occurred with a Schlafli symbol of {62.104}{62.10}2. Photoluminescent behaviors of solid 1 and 2 exhibit intense em...