Crystal structures of the Ln4−xIn5−yS13 (Ln=La, Ce, Pr and Nd; x=0.08–0.12, y=0.21–0.24), La3In1.67S7, Gd3InS6 and La4Ag2In4S13 compounds
| Autor: | M. R. Huch, L. D. Gulay, Marek Daszkiewicz |
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| Rok vydání: | 2008 |
| Předmět: |
Diffraction
chemistry.chemical_element Crystal structure Condensed Matter Physics Electronic Optical and Magnetic Materials Inorganic Chemistry Crystal Crystallography chemistry Octahedron Materials Chemistry Ceramics and Composites Tetrahedron Orthorhombic crystal system Physical and Theoretical Chemistry Ternary operation Indium |
| Zdroj: | Journal of Solid State Chemistry. 181:2626-2632 |
| ISSN: | 0022-4596 |
| Popis: | The orthorhombic crystal structures of the series of Ln{sub 4-x}In{sub 5-y}S{sub 13} (Ln=La, Ce, Pr and Nd; x=0.08-0.12, y=0.21-0.24) compounds were investigated by means of X-ray crystal diffraction. The crystals of La{sub 3}In{sub 1.67}S{sub 7} and Gd{sub 3}InS{sub 6} were also obtained unexpectedly from the La-In-S and Gd-In-S systems and no respective Gd{sub 4-x}In{sub 5-y}S{sub 13} was obtained. In the structures of the orthorhombic Ln{sub 4-x}In{sub 5-y}S{sub 13} series and hexagonal La{sub 3}In{sub 1.67}S{sub 7} indium atoms occupy disordered positions in the octahedral and trigonal antiprismatic arrangement of the sulphur atoms. The crystal structure of the La{sub 4}Ag{sub 2}In{sub 4}S{sub 13} is also given and discussed as an example of quaternary sulphide related to a ternary La-In sulphide. - Graphical abstract: In the series of the Ln{sub 4-x}In{sub 5-y}S{sub 13} (Ln=La, Ce, Pr and Nd; x=0.08-0.12, y=0.21-0.24) compounds the indium atoms occupy disordered position in the octahedral arrangement of the sulphur atoms. The tetrahedral position is ordered. |
| Databáze: | OpenAIRE |
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