Rare-earth elements in metal-organic frameworks, or MOFs, are highly attractive due to their different coordination environments, providing the formation of many different topologies. These elements provide an opportunity to utilize them for optical, magnetic, and electrical applications. Recently, the modulator, 2-fluorobenzoic acid, 2, 6-difluorobenzoic acid, and other organofluorine structures have been used to form tri-, hexa-, and nona-clusters of these lanthanides in MOFs. These clusters were previously identified in Zr-MOFs such as Zr-UIO-66, but recently, it was determined that holmium could directly extract fluorine from these fluorinated modulators and form a μ3-fluorine-bridging tri- and hexanuclear cluster MOFs using 2 2'-bipyridine-4 4'- dicarboxylic acid and terephthalic acid, respectively. Holmium ions also formed holmium fluoride precipitation in presence of these modulators. In this work, the mechanistic pathway of direct fluorine extraction from 2-fluorobenzoic acid by holmium ions will be discussed. Different Characterization such as Nuclear magnetic resonance, Powder x-ray diffraction, and mass spectroscopy is used to reveal this pathway.

Mechanistic study of direct extraction of fluorine from 2-fluorobenzoic acid by holmium Ion

Fall 2022 abstracts, posters, and presentations will launch in mid-September.

ACS Fall 2022

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.