Mild Hydrothermal Synthesis, Crystal Structure, and Spectroscopic Analysis of a Highly Luminescent Uranyl Sulfate, K(UO 2 )SO 4 F
Abstract
A new layered uranyl sulfate fluoride compound, K(UO 2 )SO 4 F, was successfully synthesized as both single-crystals and polycrystalline powder under mild hydrothermal conditions. The compound K(UO 2 )SO 4 F crystallizes in the orthorhombic crystal system with the space group Pbca, exhibiting lattice parameters of a = 8.72140(10) Å, b = 10.9204(2) Å, and c = 13.2249(2) Å, with unit cell volume V = 1259.56(3) Å 3 and Z = 8. The K(UO 2 )SO 4 F compound contains bicapped trigonal prismatic UO 5 F 2 polyhedra that are connected to sulfate tetrahedra via vertex sharing to form two-dimensional 2 ∞ [(UO) 2 SO 4 F] − sheets that are separated by K + ions. The photoluminescence emission spectrum of K(UO 2 )SO 4 F is collected by using a confocal 375 nm diode laser and is presented. The TGA and IR data for this compound are discussed.
Fields of Study & Subjects
Radioactive element chemistry and processing
Nuclear Materials and Properties
Radioactive contamination and transfer
Publication details
- Journal / source
- Crystal Growth & Design
- Publisher
- American Chemical Society (ACS)
- Volume
- 26
- Issue
- 4
- Pages
- 1833–1839
- Publication date
- 6 February 2026
- Language
- EN