| Home > Publications database > Neutral and Ionic Co(II) Metal-Organic Frameworks with 2-Methylimidazole and Trimesate: Design and Evaluation for Molecule Encapsulation and Slow Release > print |
| 001 | 622232 | ||
| 005 | 20251120212623.0 | ||
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| 100 | 1 | _ | |a Velazquez Garcia, Jose |0 P:(DE-H253)PIP1087219 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Neutral and Ionic Co(II) Metal-Organic Frameworks with 2-Methylimidazole and Trimesate: Design and Evaluation for Molecule Encapsulation and Slow Release |
| 260 | _ | _ | |a London |c 2025 |b Soc. |
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| 520 | _ | _ | |a Two Co(II) mixed-ligand metal-organic frameworks (MOFs) based on 2-methylimidazole and trimesate were synthesised at room temperature. The structure and properties of the two MOFs, named material Deutsches Elektronen Synchrotron-1 and -2 (mDESY-1 and mDESY-2), were verified by single crystal X-ray diffraction (SCXRD), powder X-ray diffraction (PXRD), SQUID magnetic susceptibility and N2 adsorption. The structural analysis indicates that mDESY-1 is a 3D ionic framework with 2-methyl-1H-imidazol-3-ium counterions residing in its pores, while mDESY-2 is a 2D neutral framework isostructural to ITH-1, with water as a co-crystallising solvent. PXRD data demonstrates that mDESY-1 exhibits better crystallinity than mDESY-2. Magnetic measurements indicate that both MOFs are paramagnetic with a weak ferromagnetic transition above room temperature. Although both structures suggest the presence of voids, N2 adsorption data confirms that these voids are not accessible in either MOF. Nevertheless, mDESY-1 was capable of encapsulating azobenzene during synthesis, which was observed via SCXRD. The encapsulated molecules were then slowly released in ethanol, with a release of up to 30mg of azobenzene per g of MOF in a period of 60 days. |
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