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

IF 3.6 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR Solid State Sciences Pub Date : 2025-02-01 Epub Date: 2024-12-07 DOI:10.1016/j.solidstatesciences.2024.107802

Hunter B. Tisdale , Hans-Conrad zur Loye

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Abstract

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 Pna2₁ and lattice parameters a = 18.5645(13) Å, b = 6.7591(4) Å, and c = 10.4217(7) Å. Rb₂Sm[Si₄O₁₀]F forms as a distortion of the known A₂Ln[Si₄O₁₀]F structure, crystallizing in the monoclinic space group P2₁/m, with lattice parameters a = 8.0886(2) Å, b = 8.8000(3) Å, c = 8.2285(3) Å, and β = 90.2350(10)°. The syntheses and structures of these two compositions are discussed as well as the optical behavior of the Eu-doped Rb₃[Sc_1.9Eu_0.1][Si₄O₁₂]F.

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熔盐助熔剂合成两种新型碱性稀土硅酸盐氟化物：Rb3Sc2[Si4O12]F和Rb2Sm[Si4O10]F

在熔融共熔助熔剂RbCl/HRbF2中合成了两种新型的碱性稀土硅酸盐氟化物单晶。Rb3Sc2[Si4O12]F具有正交非中心对称空间群Pna21，晶格参数a = 18.5645（13） Å， b = 6.7591(4) Å， c = 10.4217(7) Å。Rb2Sm[Si4O10]F是已知的A2Ln[Si4O10]F结构的变形，在单斜空间群P21/m中结晶，晶格参数为a = 8.0886(2) Å， b = 8.8000(3) Å， c = 8.2285(3) Å， β = 90.2350（10）°。讨论了这两种组合物的合成和结构，以及铕掺杂Rb3[Sc1.9Eu0.1][Si4O12]F的光学行为。

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来源期刊

Solid State Sciences 化学-无机化学与核化学

CiteScore

6.60

自引率

2.90%

发文量

214

审稿时长

27 days

期刊介绍： Solid State Sciences is the journal for researchers from the broad solid state chemistry and physics community. It publishes key articles on all aspects of solid state synthesis, structure-property relationships, theory and functionalities, in relation with experiments. Key topics for stand-alone papers and special issues: -Novel ways of synthesis, inorganic functional materials, including porous and glassy materials, hybrid organic-inorganic compounds and nanomaterials -Physical properties, emphasizing but not limited to the electrical, magnetical and optical features -Materials related to information technology and energy and environmental sciences. The journal publishes feature articles from experts in the field upon invitation. Solid State Sciences - your gateway to energy-related materials.