6533b860fe1ef96bd12c2f8d
RESEARCH PRODUCT
Lanthanide Discrimination with Hydroxyl-Decorated Flexible Metal–Organic Frameworks
Antonio TagarelliRosangela EllianiEmilio PardoXiaoni QuXiaoni QuJesús Ferrando-soriaDonatella ArmentanoRosaria BrunoMarta MonSanping Chensubject
Steric effectschemistry.chemical_classificationLanthanideSubstrate (chemistry)02 engineering and technologyCrystal structure010402 general chemistry021001 nanoscience & nanotechnology01 natural sciencesChloride0104 chemical sciencesAmino acidInorganic ChemistryCrystallographychemistryChemical affinitymedicineMetal-organic frameworkPhysical and Theoretical Chemistry0210 nano-technologymedicine.drugdescription
We report two new highly crystalline metal-organic frameworks (MOFs), derived from the natural amino acids serine (1) and threonine (2), featuring hexagonal channels densely decorated with hydroxyl groups belonging to the amino acid residues. Both 1 and 2 are capable of discriminating, via solid-phase extraction, a mixture of selected chloride salts of lanthanides on the basis of their size, chemical affinity, and/or the flexibility of the network. In addition, this discrimination follows a completely different trend for 1 and 2 because of the different locations of the hydroxyl groups in each compound, which is evocative of steric complementarity between the substrate and receptor. Last but not least, the crystal structures of selected adsorbates could be resolved, offering unprecedented snapshots on the capture process and enabling structural correlations with the separation mechanism.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-10-16 | Inorganic Chemistry |