Molten salt flux synthesis of two new alkali rare earth silicate fluorides: Rb3Sc2[Si4O12]F and Rb2Sm[Si4O10]F

被引：0

作者：

Tisdale, Hunter B. ^{[1
,2
]}

zur Loye, Hans-Conrad ^{[1
,2
]}

机构：

[1] Ctr Hierarch Waste Form Mat, Columbia, SC 29208 USA

[2] Univ South Carolina, Dept Chem & Biochem, Columbia, SC 29208 USA

来源：

SOLID STATE SCIENCES | 2025年 / 160卷

关键词：

CRYSTAL-STRUCTURE; GROWTH; EU; LUMINESCENCE; TEMPERATURE; LANTHANIDE; SM; LN;

D O I：

10.1016/j.solidstatesciences.2024.107802

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two new alkali rare earth silicate fluorides have been synthesized as single crystals in a molten eutectic flux, RbCl/HRbF2. Rb3Sc2[Si4O12]F crystallizes in a novel structure type with the orthorhombic, noncentrosymmetric space group Pna 2 1 and lattice parameters a = 18.5645(13) & Aring;, b = 6.7591(4) & Aring;, and c = 10.4217(7) & Aring;. Rb2Sm[Si4O10]F forms as a distortion of the known A2Ln[Si4O10]F structure, crystallizing in the monoclinic space group P 2 1 / m , with lattice parameters a = 8.0886 (2) & Aring;, b = 8.8000(3) & Aring;, c = 8.2285(3) & Aring;, and beta = 90.2350(10)degrees. The syntheses and structures of these two compositions are discussed as well as the optical behavior of the Eu-doped Rb3[Sc1.9Eu0.1][Si4O12]F.

引用

页数：6