Fluoro-bridged rare-earth metal-organic frameworks.

Dalton Trans

Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Rd, Richardson, TX 75080, USA.

Published: February 2024

AI Article Synopsis

  • Rare-earth metal-organic frameworks (RE-MOFs) possess distinct optical, electronic, and magnetic characteristics due to their unique structural properties.
  • The successful development of three-dimensional porous RE-MOFs relies on creating larger metal nodes or clusters, which often incorporate fluorinated organic molecules that serve as reactants rather than modulators.
  • The presence of fluorine in these clusters enhances their connectivity and results in MOFs with improved attributes, such as increased thermal stability and better fluorescence; the article highlights advances in this field and outlines potential future directions.

Article Abstract

Rare-earth (RE) metal-organic frameworks (MOFs) offer unique optical, electronic, and magnetic properties. RE metals tend to make binuclear metal nodes resulting in dense nonporous coordination networks. Three dimensional porous RE-MOFs have been reported by preparing bigger metal nodes based on metal clusters often found as hexaclusters or nonaclusters. The formation of metal clusters (>2 metal ions) generally requires the use of fluorinated organic molecules reported as modulators. However, it was recently discovered that these molecules are not modulators, rather they act as reactants and leave fluorine in the metal clusters. The formation and types of fluorinated RE metal clusters have been discussed. These fluorinated clusters offer higher connectivity which results in porous MOFs. The presence of fluorine in these metal clusters offers unique properties, such as higher thermal stability and improved fluorescence. This frontier summarizes recent progress and gives future perspective on the fluorinated metal clusters in the RE-MOFs.

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Source
http://dx.doi.org/10.1039/d3dt03814aDOI Listing

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