2016/01/20 by Thomas Vent‐Schmidt, Zongtang Fang, Zachary Lee +2 · 1 citation
Chemistry · Materials Science · Physics and Astronomy · #Actinide #Advanced Chemical Physics Studies #Chemistry #Infrared spectroscopy #Inorganic Fluorides and Related Compounds #Inorganic chemistry #Ion #Lanthanide #Luminescence Properties of Advanced Materials #Matrix (chemical analysis) #Matrix isolation #Metal #Molecule #Organic chemistry #Oxidation state #Oxidizing agent #Physical chemistry #Quantum chemical #Spectroscopy
paper · doi:10.1002/chem.201504182
openalex publication_date 2016/01/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04
Only the neutral tetrafluorides of Ce, Pr, and Tb as well as the [LnF7 ](3-) anions of Dy and Nd, with the metal in the +IV oxidation state, have been previously reported. We report our attempts to extend the row of neutral lanthanide tetrafluorides through the reaction of laser-ablated metal atoms with fluorine and their stabilization and characterization by matrix-isolation IR spectroscopy. In addition to the above three tetrafluorides, we found two new tetrafluorides, (3) NdF4 and (7) DyF4 , both of which are in the +IV oxidation state, which extends this lanthanide oxidation state to two new metals. Our experimental results are supported by quantum-chemical calculations and the role of the lanthanide oxidation state is discussed for both the LnF4 and [LnF4 ](-) species. Most of the LnF4 species are predicted to be in the +IV oxidation state and all of the [LnF4 ](-) anions are predicted to be in the +III oxidation state. The LnF4 species are predicted to be strong oxidizing agents and the LnF3 species are predicted to be moderate to strong Lewis acids.