The β-polymorph of uranium phosphide selenide
β-UPSe was synthesized from the reaction of U2Se3, P and Se in a CsCl flux in a fused-silica tube. It crystallizes with four formula units in the tetragonal space group I4/mmm in the UGeTe structure type. The asymmetric unit comprises one U (site symmetry 4mm), one Se (4mm), and one P (...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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International Union of Crystallography
2011-12-01
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| Series: | Acta Crystallographica Section E |
| Online Access: | http://scripts.iucr.org/cgi-bin/paper?S1600536811049592 |
| _version_ | 1818321499296104448 |
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| author | George N. Oh James A. Ibers |
| author_facet | George N. Oh James A. Ibers |
| author_sort | George N. Oh |
| collection | DOAJ |
| description | β-UPSe was synthesized from the reaction of U2Se3, P and Se in a CsCl flux in a fused-silica tube. It crystallizes with four formula units in the tetragonal space group I4/mmm in the UGeTe structure type. The asymmetric unit comprises one U (site symmetry 4mm), one Se (4mm), and one P (mmm.) atom. The U atom is coordinated in a monocapped square-antiprismatic arrangement, where the square face is formed by P atoms and the other five vertices are Se atoms. The P site is disordered about a mirror plane, showing half-ocupancy for each of the two resulting P atoms. The title structure is related to that of α-UPSe, which crystallizes with two formula units in the tetragonal space group P4/nmm in the PbFCl structure type. |
| first_indexed | 2024-12-13T10:41:52Z |
| format | Article |
| id | doaj.art-69d281ba03d64e6ca2cdaf24b799ff03 |
| institution | Directory Open Access Journal |
| issn | 1600-5368 |
| language | English |
| last_indexed | 2024-12-13T10:41:52Z |
| publishDate | 2011-12-01 |
| publisher | International Union of Crystallography |
| record_format | Article |
| series | Acta Crystallographica Section E |
| spelling | doaj.art-69d281ba03d64e6ca2cdaf24b799ff032022-12-21T23:50:28ZengInternational Union of CrystallographyActa Crystallographica Section E1600-53682011-12-016712i75i7510.1107/S1600536811049592The β-polymorph of uranium phosphide selenideGeorge N. OhJames A. Ibersβ-UPSe was synthesized from the reaction of U2Se3, P and Se in a CsCl flux in a fused-silica tube. It crystallizes with four formula units in the tetragonal space group I4/mmm in the UGeTe structure type. The asymmetric unit comprises one U (site symmetry 4mm), one Se (4mm), and one P (mmm.) atom. The U atom is coordinated in a monocapped square-antiprismatic arrangement, where the square face is formed by P atoms and the other five vertices are Se atoms. The P site is disordered about a mirror plane, showing half-ocupancy for each of the two resulting P atoms. The title structure is related to that of α-UPSe, which crystallizes with two formula units in the tetragonal space group P4/nmm in the PbFCl structure type.http://scripts.iucr.org/cgi-bin/paper?S1600536811049592 |
| spellingShingle | George N. Oh James A. Ibers The β-polymorph of uranium phosphide selenide Acta Crystallographica Section E |
| title | The β-polymorph of uranium phosphide selenide |
| title_full | The β-polymorph of uranium phosphide selenide |
| title_fullStr | The β-polymorph of uranium phosphide selenide |
| title_full_unstemmed | The β-polymorph of uranium phosphide selenide |
| title_short | The β-polymorph of uranium phosphide selenide |
| title_sort | amp 946 polymorph of uranium phosphide selenide |
| url | http://scripts.iucr.org/cgi-bin/paper?S1600536811049592 |
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