Publications by authors named "V Bon"
The catalytic potential of flexible metal-organic frameworks (MOFs) remains underexplored, particularly in solution-phase reactions. This study employs MIL-53(Cr), a prototypical "breathing" MOF capable of structural adaptation via pore size modulation, as a photocatalyst for the dehalogenation of aryl halides. Powder X-ray diffraction and pair distribution function analyses reveal that organic solvents influence pore opening, while substrates and products dynamically adjust the framework configuration during catalysis.
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- Dynamic covalent organic frameworks (COFs) can reversibly change their structure and porosity based on absorbed guest molecules, but earlier advancements primarily focused on 3D frameworks.
- Recent research has produced a set of 2D COFs by varying the lengths of bridge units, resulting in significant solvent-induced volume expansions of up to 85% while maintaining structural integrity.
- These reversible structural changes suggest a promising design approach for 2D COFs that could lead to new applications in areas such as gas separation and sensing technologies.
Article Synopsis
- The research introduces a new method to create electrochromic materials using a specific Piccard-type system within Zr-MOFs, breaking the reliance on a limited set of building blocks in the field.
- The newly developed material offers advantages such as fast switching rates, high contrast ratios, long-term stability, and comparable performance to traditional inorganic electrochromic materials.
- The design of the framework allows for unique control of the oxidation process due to locked conformations of the electrochromic ligand, enabling the development of frameworks with distinct redox properties.
The approach of employing multivariate MOFs was used to fine-tune the mechanical properties of the flexible framework DUT-49. XRD, NMR and physisorption studies showed that the partial incorporation of a more rigid linker into the DUT-49 framework enables stabilization of the metastable open pore phase, which led to a two-fold amplification of the expelled gas amount upon the "negative gas adsorption" transition.
View Article and Find Full Text PDFCrystal size engineering allows tailoring of flexible metal-organic frameworks (MOFs) to achieve new properties. The gating type flexibility of the DUT-8(Zn) ([Zn(2,6-ndc)(dabco)], 2,6-ndc = 2,6-naphthalene dicarboxylate, dabco = 1,4-diazabicyclo-[2.2.
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