Synthesis and Study of Uranates of Rare-Earth Elements of Compositions LnU3O10.5·6H2O (Ln = La, Ce, Pr, Nd, Sm), LnU6O19.5·10H2O (Ln = Nd, Sm, Eu, Gd, Tb, Dy), and LnU2O7.5 (Ln = Dy, Ho, Er, Tm, Yb, Lu)

Exploring the influence of pH on the structural intricacies of uranium oxide hydrates containing both Cd(ii) and K(i) ions

“…These ratios match those expected for layered UOH materials, with uranium to metal ratios of 2 : 1–4 : 1 most typically observed. 19,39,40 The PXRD pattern matches the calculated pattern from the single crystal data (Fig. S3, ESI†) suggesting a pure phase compound was obtained.…”

Uranium oxide hydrate frameworks with Er(iii) or Y(iii) ions: revealing structural insights leading to the low symmetry

“…Of significant interest is the identified P 1̄ space group. Whilst layered UOH structures have been reported in the same space group, 30,45 no triclinic UOF has been identified yet in the literature. Looking along the channels of the framework (Fig.…”

“…Only one synthesis of a UOH-Er material has been reported, however no single-crystal analysis was done on the material which prevented any structural insights from being explored. 30 Yttrium was a second candidate that was identified for this study, with no previously reported structures containing Y having been found. Being chemically similar to Ln 3+ ions and having an ionic radius close to that of erbium, it was selected as a possible UOH/F-Ln surrogate which could further aid in the understanding of the chemistry driving the formation of these materials.…”