Year: 2025
Type: article
Abstract: A revised crystal structure of La(OH)2Cl is reported. This material is found to crystallize in space group P21/m and is isostructural to a series of Ln(OH)2Cl (Ln = Ce – Lu excluding Pm). The Ln(OH)2Cl series has been thoroughly studied, serving as analogues to proposed actinide structures for used nuclear fuel storage. The P21/m space group has been reported for each isostructural variant in this series. La(OH)2Cl is described in the context of the structural trends identified with this series. A lanthanum variant has previously been reported, however, with symmetry corresponding to the space group P2/m. The data collected herein are compared to the previously published La(OH)2Cl in the space group P2/m. Herein, an updated hydrothermal synthesis and revised crystallographic structure for La(OH)2Cl in P21/m are reported. The reflection conditions of the collected X‐ray diffraction data, the bond valence sums of both structures, and total energy calculations based on density functional theory support the revised space group assignment.
Institutions: Northwestern University, Université de Toulouse
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,960
OpenAlex ID: W4409537954