Pentanary and Hexanary Alkali Lanthanide Germanates Grown from Lanthanide Rich Flux Growth Reactions

Author(s)

Gregory Morrison
K. Pilar Zamorano
Virginia G. Jones
Ethan N. Adams
Hans Conrad zur Loye, University of South CarolinaFollow

Document Type

Article

Abstract

Single crystals of five compounds of a new structure type, the K3Nd52Ge12O100F7 type, were grown from lanthanide rich reactions using a KF/KCl flux: K3Ln52Ge12O100F7 (Ln = Nd, Eu), K3Ln52Ge12O100+δF7-δ (Ln = Pr, Tb), and K3Ca0.872Nd51.128Ge12O99.128F7.872. The five compounds crystallize in the cubic space group I-43d with lattice parameter 22.0350(2) Å for K3Nd52Ge12O100F7. The structure consists of a 3D checkerboard of LnX8, LnX7, LnX6, and GeO4 polyhedra, where X = O/F, and can be conceptually derived from the fluorite structure. K3Eu52Ge12O100F7 exhibits the fluorescence typical of Eu³⁺.

Digital Object Identifier (DOI)

https://doi.org/10.1016/j.solidstatesciences.2025.108055

Publication Info

Published in Solid State Sciences, Volume 168, 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

Morrison, G., Zamorano, K. P., Jones, V. G., Adams, E. N., & Loye, H.-C. zur. (2025). Pentanary and hexanary alkali lanthanide germanates grown from lanthanide rich flux growth reactions. Solid State Sciences, 168, 108055.https://doi.org/10.1016/j.solidstatesciences.2025.108055