{"title":"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","authors":"Hunter B. Tisdale , Hans-Conrad zur Loye","doi":"10.1016/j.solidstatesciences.2024.107802","DOIUrl":null,"url":null,"abstract":"<div><div>Two new alkali rare earth silicate fluorides have been synthesized as single crystals in a molten eutectic flux, RbCl/HRbF<sub>2</sub>. Rb<sub>3</sub>Sc<sub>2</sub>[Si<sub>4</sub>O<sub>12</sub>]F crystallizes in a novel structure type with the orthorhombic, noncentrosymmetric space group <em>Pna</em>2<sub>1</sub> and lattice parameters <em>a</em> = 18.5645(13) Å, <em>b</em> = 6.7591(4) Å, and <em>c</em> = 10.4217(7) Å. Rb<sub>2</sub>Sm[Si<sub>4</sub>O<sub>10</sub>]F forms as a distortion of the known A<sub>2</sub>Ln[Si<sub>4</sub>O<sub>10</sub>]F structure, crystallizing in the monoclinic space group <em>P</em>2<sub>1</sub>/<em>m</em>, with lattice parameters <em>a</em> = 8.0886(2) Å, <em>b</em> = 8.8000(3) Å, <em>c</em> = 8.2285(3) Å, and <em>β</em> <em>=</em> 90.2350(10)°. The syntheses and structures of these two compositions are discussed as well as the optical behavior of the Eu-doped Rb<sub>3</sub>[Sc<sub>1.9</sub>Eu<sub>0.1</sub>][Si<sub>4</sub>O<sub>12</sub>]F.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107802"},"PeriodicalIF":3.6000,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Molten salt flux synthesis of two new alkali rare earth silicate fluorides: Rb3Sc2[Si4O12]F and Rb2Sm[Si4O10]F\",\"authors\":\"Hunter B. Tisdale , Hans-Conrad zur Loye\",\"doi\":\"10.1016/j.solidstatesciences.2024.107802\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Two new alkali rare earth silicate fluorides have been synthesized as single crystals in a molten eutectic flux, RbCl/HRbF<sub>2</sub>. Rb<sub>3</sub>Sc<sub>2</sub>[Si<sub>4</sub>O<sub>12</sub>]F crystallizes in a novel structure type with the orthorhombic, noncentrosymmetric space group <em>Pna</em>2<sub>1</sub> and lattice parameters <em>a</em> = 18.5645(13) Å, <em>b</em> = 6.7591(4) Å, and <em>c</em> = 10.4217(7) Å. Rb<sub>2</sub>Sm[Si<sub>4</sub>O<sub>10</sub>]F forms as a distortion of the known A<sub>2</sub>Ln[Si<sub>4</sub>O<sub>10</sub>]F structure, crystallizing in the monoclinic space group <em>P</em>2<sub>1</sub>/<em>m</em>, with lattice parameters <em>a</em> = 8.0886(2) Å, <em>b</em> = 8.8000(3) Å, <em>c</em> = 8.2285(3) Å, and <em>β</em> <em>=</em> 90.2350(10)°. The syntheses and structures of these two compositions are discussed as well as the optical behavior of the Eu-doped Rb<sub>3</sub>[Sc<sub>1.9</sub>Eu<sub>0.1</sub>][Si<sub>4</sub>O<sub>12</sub>]F.</div></div>\",\"PeriodicalId\":432,\"journal\":{\"name\":\"Solid State Sciences\",\"volume\":\"160 \",\"pages\":\"Article 107802\"},\"PeriodicalIF\":3.6000,\"publicationDate\":\"2025-02-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Solid State Sciences\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1293255824003674\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2024/12/7 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, INORGANIC & NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solid State Sciences","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1293255824003674","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/12/7 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
摘要
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。
Molten salt flux synthesis of two new alkali rare earth silicate fluorides: Rb3Sc2[Si4O12]F and Rb2Sm[Si4O10]F
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[Sc1.9Eu0.1][Si4O12]F.
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