Crystal structures of five compounds in the aluminium–ruthenium–silicon system
Single crystals of five compounds with approximate compositions ∼Ru16(Al0.78Si0.22)47, (I), ∼Ru9(Al0.70Si0.30)32, (II), ∼Ru10(Al0.67Si0.33)41, (III), ∼Ru(Al0.57Si0.43)5, (IV), and ∼Ru2(Al0.46Si0.54)9, (V), were obtained from polycrystalline lumps mainly composed of the target compounds, and their cr...
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| Format: | Article |
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International Union of Crystallography
2023-10-01
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| Series: | Acta Crystallographica Section E: Crystallographic Communications |
| Subjects: | |
| Online Access: | http://scripts.iucr.org/cgi-bin/paper?S2056989023008393 |
| _version_ | 1797641071301230592 |
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| author | Koichi Kitahara Hiroyuki Takakura Yutaka Iwasaki Kaoru Kimura |
| author_facet | Koichi Kitahara Hiroyuki Takakura Yutaka Iwasaki Kaoru Kimura |
| author_sort | Koichi Kitahara |
| collection | DOAJ |
| description | Single crystals of five compounds with approximate compositions ∼Ru16(Al0.78Si0.22)47, (I), ∼Ru9(Al0.70Si0.30)32, (II), ∼Ru10(Al0.67Si0.33)41, (III), ∼Ru(Al0.57Si0.43)5, (IV), and ∼Ru2(Al0.46Si0.54)9, (V), were obtained from polycrystalline lumps mainly composed of the target compounds, and their crystal structures were determined by means of single-crystal X-ray diffraction. The crystal structure of (I) can be related to that of a cubic rational crystalline approximant to an icosahedral quasicrystal through crystallographic shear and then unit-cell twinning. The crystal structure of (II) is isotypic with that of a phase with composition ∼Fe9(Al,Si)32. The crystal structure of (III) is comprised of edge-sharing Ru(Al,Si)9–11 polyhedra with disordered chains along edges of polyhedra. The crystal structure of (IV) is of the LiIrSn4 type. The crystal structure of (V) can be viewed as a crystallographic shear structure derived from that of (IV). |
| first_indexed | 2024-03-11T13:40:15Z |
| format | Article |
| id | doaj.art-51751eec0aec4e55ace11a278b7d9a0d |
| institution | Directory Open Access Journal |
| issn | 2056-9890 |
| language | English |
| last_indexed | 2024-03-11T13:40:15Z |
| publishDate | 2023-10-01 |
| publisher | International Union of Crystallography |
| record_format | Article |
| series | Acta Crystallographica Section E: Crystallographic Communications |
| spelling | doaj.art-51751eec0aec4e55ace11a278b7d9a0d2023-11-02T13:44:32ZengInternational Union of CrystallographyActa Crystallographica Section E: Crystallographic Communications2056-98902023-10-01791094695110.1107/S2056989023008393wm5690Crystal structures of five compounds in the aluminium–ruthenium–silicon systemKoichi Kitahara0Hiroyuki Takakura1Yutaka Iwasaki2Kaoru Kimura3Department of Materials Science and Engineering, School of Electrical and Computer Engineering, National Defense Academy, Yokosuka 239-8686, JapanDivision of Applied Physics, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, JapanDepartment of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, JapanDepartment of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, JapanSingle crystals of five compounds with approximate compositions ∼Ru16(Al0.78Si0.22)47, (I), ∼Ru9(Al0.70Si0.30)32, (II), ∼Ru10(Al0.67Si0.33)41, (III), ∼Ru(Al0.57Si0.43)5, (IV), and ∼Ru2(Al0.46Si0.54)9, (V), were obtained from polycrystalline lumps mainly composed of the target compounds, and their crystal structures were determined by means of single-crystal X-ray diffraction. The crystal structure of (I) can be related to that of a cubic rational crystalline approximant to an icosahedral quasicrystal through crystallographic shear and then unit-cell twinning. The crystal structure of (II) is isotypic with that of a phase with composition ∼Fe9(Al,Si)32. The crystal structure of (III) is comprised of edge-sharing Ru(Al,Si)9–11 polyhedra with disordered chains along edges of polyhedra. The crystal structure of (IV) is of the LiIrSn4 type. The crystal structure of (V) can be viewed as a crystallographic shear structure derived from that of (IV).http://scripts.iucr.org/cgi-bin/paper?S2056989023008393crystal structurealuminium–ruthenium–silicon systemsingle-crystal x-ray diffractionisotypismstructural similaritycrystallographic shearunit-cell twinningquasicrystal approximant |
| spellingShingle | Koichi Kitahara Hiroyuki Takakura Yutaka Iwasaki Kaoru Kimura Crystal structures of five compounds in the aluminium–ruthenium–silicon system Acta Crystallographica Section E: Crystallographic Communications crystal structure aluminium–ruthenium–silicon system single-crystal x-ray diffraction isotypism structural similarity crystallographic shear unit-cell twinning quasicrystal approximant |
| title | Crystal structures of five compounds in the aluminium–ruthenium–silicon system |
| title_full | Crystal structures of five compounds in the aluminium–ruthenium–silicon system |
| title_fullStr | Crystal structures of five compounds in the aluminium–ruthenium–silicon system |
| title_full_unstemmed | Crystal structures of five compounds in the aluminium–ruthenium–silicon system |
| title_short | Crystal structures of five compounds in the aluminium–ruthenium–silicon system |
| title_sort | crystal structures of five compounds in the aluminium ruthenium silicon system |
| topic | crystal structure aluminium–ruthenium–silicon system single-crystal x-ray diffraction isotypism structural similarity crystallographic shear unit-cell twinning quasicrystal approximant |
| url | http://scripts.iucr.org/cgi-bin/paper?S2056989023008393 |
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