June 16, 2022
Journal Article

Synthesis of dysprosium oxychloride (DyOCl)

Abstract

Dysprosium oxychloride, DyOCl, was synthesized using a simple dehydration method with DyCl3·6H2O. X-ray powder diffraction data was used to determine the crystal structure. The DyOCl compound is isostructural to the matlockite (PbFCl) crystal structure and crystallizes in the tetragonal P4/nmm (#129) space group. The crystal structure contains the alternating cationic layers of (DyO)n and anionic layers of nCl– along the c-axis. The structural data including unit cell, volume, and density of DyOCl were compared to other REOCl data from Inorganic Crystal Structure Database (ICSD) and our previous study on TbOCl. Fourier-transform infrared spectroscopy (FTIR) was performed, and the vibrations of DyOCl possibly from Dy–O and Dy–Cl were observed at 543 and 744 cm-1. Scanning electron microscopy analysis (SEM) showed irregularly shaped crystals.

Published: June 16, 2022

Citation

Chong S., B.J. Riley, J. Marcial, C.E. Lonergan, and D.A. Cutforth. 2022. Synthesis of dysprosium oxychloride (DyOCl). Journal of Chemical Crystallography 52, no. 2:185-193. PNNL-SA-158753. doi:10.1007/s10870-021-00904-2