- Dual Exchange in PCN-333: A Facile Strategy to Chemically Robust Mesoporous Chromium Metal-Organic Framework with Functional Groups
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A facile preparation of a mesoporous Cr-MOF, PCN-333(Cr) with functional group, has been demonstrated through a dual exchange strategy, involving a sequential ligand exchange and metal metathesis process. After optimization of the exchange system, the functionalized PCN-333(Cr), N3-PCN-333(Cr) shows well maintained crystallinity, porosity, as well as much improved chemical stability. Because of the exceptionally large pores (~5.5 nm) in PCN-333(Cr), a secondary functional moiety, Zn-TEPP with a size of 18 ? × 18 ?, has been successfully clicked into the framework. In this article, we have also analyzed kinetics and thermodynamics during dual exchange process, showing our attempts to interpret the exchange event in the PCN-333. Our findings not only provide a highly stable mesoporous Cr-MOF platform for expanding MOF-based applications, but also suggest a route to functionalized Cr-MOF which may have not been achievable through conventional approaches.
- Park, Jihye,Feng, Dawei,Zhou, Hong-Cai
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- Structure-assisted functional anchor implantation in robust metal-organic frameworks with ultralarge pores
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A facile functionalization assisted by the structural attributes of PCN-333 has been studied while maintaining the integrity of the parent MOF including ultralarge pores, chemical robustness, and crystallinity. Herein we thoroughly analyzed ligand exchange phenomena in PCN-333 and demonstrate that the extent of exchange can be tailored by varying the exchange conditions as potential applications may require. Through this method a variety of functional groups are incorporated into PCN-333. To further show the capabilities of this system introduction of a BODIPY fluorophore as a secondary functionality was performed to the functionalized framework via a click reaction. We anticipate the PCN-333 with functional anchor can serve as a stable platform for further chemistry to be explored in future applications.
- Park, Jihye,Feng, Dawei,Zhou, Hong-Cai
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supporting information
p. 1663 - 1672
(2015/02/19)
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- Aromatic tricarboxylic acid
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PROBLEM TO BE SOLVED: To provide a new aromatic tricarboxylic acid. SOLUTION: This aromatic tricarboxylic acid is represented by general formula (1). [In the formula, X represents a metoxy, amino, isocyano or hydroxy group, and n represents an integer of 0-3]. COPYRIGHT: (C)2012,JPO&INPIT
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Paragraph 0022-0023
(2018/10/31)
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- POROUS METAL COMPLEX, PROCESS FOR PRODUCING SAME, GAS STORAGE METHOD, AND GAS SEPARATION METHOD
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The porous coordination polymer of the invention contains metal complexes formed by coordination bonding between a trivalent metal ion and an aromatic tricarboxylic acid represented by formula (1). The porous coordination polymer also has a pore structure formed by integration of a plurality of the metal complexes. [In formula (1), n represents an integer of 0 to 4.]
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Paragraph 0063; 0064; 0065
(2013/05/09)
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