Flux Crystal Growth of a Series of Calcium Rare Earth Silicate Chlorides Calnsio₄Cl (Ln = Pr, Nd, Sm, Eu, Gd, and Tb): Mixed Anion Materials with a Spodiosite-Type Structure

Author(s)

Maria Goncalves
Mark D. Smith, University of South CarolinaFollow
Hans Conrad zur Loye, University of South CarolinaFollow

Document Type

Article

Abstract

A series of calcium rare earth silicate chlorides, CaLnSiO4Cl (Ln = Pr, Nd, Sm, Eu, Gd, and Tb), was obtained as single crystals from flux crystal growth. The structures were determined by single crystal X-ray diffraction and were found to be related to the spodiosite/Wagnerite mineral structure, Ca2PO4F. The obtained compositions are variations of the spodiosite structure that result from two simultaneous elemental substitutions. Replacing one calcium for one rare earth element and the simultaneous replacement of one VO4³⁻ or PO4³⁻ with one SiO4⁴⁻. CaEuSiO4Cl was found to luminesce, and its photoluminescence spectrum is reported.

Digital Object Identifier (DOI)

https://doi.org/10.1016/j.solidstatesciences.2025.108105

Publication Info

Published in Solid State Sciences, Volume 170, 2025.

Rights

© 2025 The Authors. Published by Elsevier Masson SAS. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

APA Citation

Goncalves, M., Smith, M. D., & Loye, H.-C. zur. (2025). Flux crystal growth of a series of calcium rare earth silicate chlorides CaLnSiO4Cl (Ln = Pr, Nd, Sm, Eu, Gd, and Tb): Mixed anion materials with a spodiosite-type structure. Solid State Sciences, 170, 108105.https://doi.org/10.1016/j.solidstatesciences.2025.108105