Substrate templated synthesis of single-phase and uniform Zr-porphyrin-based metal–organic frameworks†,Inorganic Chemistry Frontiers

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Substrate templated synthesis of single-phase and uniform Zr-porphyrin-based metal–organic frameworks†
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2019-10-24 , DOI: 10.1039/c9qi01045a
Seong Won Hong _{1,

2,

3,

4} , Ju Won Paik _{1,

2,

3,

4,

5} , Dongju Seo _{1,

2,

3,

4} , Jae-Min Oh _{4,

6,

7,

8} , Young Kyu Jeong _{4,

5,

9} , Jin Kuen Park _{1,

2,

3,

4}

Affiliation

In the synthesis of highly applicable metal–organic frameworks (MOFs), obtaining pure phases poses a great challenge since some MOFs have diverse phases with the same metal sources and ligands. Among such MOFs, PCN-223 and PCN-221 can easily be formed together in a one-pot reaction, making it hard to separate them in a single phase. It is known that some PCN series have a kinetic relationship in the early stages of their formation mechanisms. Thus, we have dedicated our efforts to finding the kinetic relationship between PCN-223 and PCN-221 by utilizing the chemical bath deposition (CBD) method to establish reaction parameters for their pure phases. We found that one out of the two phases can be transformed into the other phase by varying the Zr precursors, water amount, modulators, substrates, and reaction time. Furthermore, the pure phase of PCN-221 with a distinct open-pore channel of 100 nm, which has not been obtained previously, can be synthesized through the CBD method. In this work, we successfully demonstrate that the CBD method is a versatile method for synthesizing phase-pure and uniform MOFs by controlling their nucleation stage and pore structures.

中文翻译：

单相且均一的基于Zr-卟啉的金属-有机骨架的基质模板合成†

在合成高度适用的金属有机骨架（MOF）时，要获得纯相是一个巨大的挑战，因为某些MOF具有相同的金属来源和配体的不同相。在这样的MOF中，PCN-223和PCN-221可以容易地通过一锅法反应一起形成，使得难以在单相中将它们分离。已知某些PCN系列在其形成机理的早期阶段具有动力学关系。因此，我们致力于通过利用化学浴沉积（CBD）方法建立PCN-223和PCN-221的纯相的反应参数来发现它们之间的动力学关系。我们发现，通过改变Zr前体，水量，调节剂，底物和反应时间，可以将两相中的一相转变为另一相。此外，可以通过CBD方法合成PCN-221的纯相，该纯相具有100nm的独特开孔通道，这是以前无法获得的。在这项工作中，我们成功地证明了CBD方法是通过控制相的成核阶段和孔结构来合成纯相和均匀MOF的通用方法。

更新日期：2019-12-18

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