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.
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页数：6
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