{"title":"Hydrothermal synthesis and crystal structure of SrAl2(PO4)2F2: A new three-dimensional framework with channels delimited by a helical anionic border","authors":"J.-M. Le Meins, G. Courbion","doi":"10.1016/S0992-4361(99)80005-8","DOIUrl":null,"url":null,"abstract":"<div><p>The new compound SrAl<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>F<sub>2</sub> has been synthesised by a hydrothermal method (700°C, 195 MPa, 24 h). The structure was determinated by X-ray diffraction on single crystal. SrAl<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>F<sub>2</sub> crystallises in the non-centrosymmetric space group P2<sub>1</sub>2<sub>1</sub>2<sub>1</sub> (N<sup>o</sup>19) with a = 12.026(1) Å, b = 12.199(1) Å, c = 4.666(1) Å, V = 684.6(5) Å<sup>3</sup> and Z = 4. Its structure is built up from corner-linkage between octahedral and tetrahedral units. The resulting tridimensional framework exhibits channels along [001] delimited by oxygen anions helically distributed. The Sr<sup>2+</sup> cations are inserted inside the channels.</p></div>","PeriodicalId":100507,"journal":{"name":"European Journal of Solid State and Inorganic Chemistry","volume":"35 10","pages":"Pages 639-653"},"PeriodicalIF":0.0000,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0992-4361(99)80005-8","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"European Journal of Solid State and Inorganic Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0992436199800058","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
Abstract
The new compound SrAl2(PO4)2F2 has been synthesised by a hydrothermal method (700°C, 195 MPa, 24 h). The structure was determinated by X-ray diffraction on single crystal. SrAl2(PO4)2F2 crystallises in the non-centrosymmetric space group P212121 (No19) with a = 12.026(1) Å, b = 12.199(1) Å, c = 4.666(1) Å, V = 684.6(5) Å3 and Z = 4. Its structure is built up from corner-linkage between octahedral and tetrahedral units. The resulting tridimensional framework exhibits channels along [001] delimited by oxygen anions helically distributed. The Sr2+ cations are inserted inside the channels.
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