Flux syntheses and single-crystal structures of CsNa10M4(AsO4)9 (M = Zr, Hf)
The isostructural compounds caesium decasodium tetrazirconium nonaarsenate, CsNa10Zr4(AsO4)9, and caesium decasodium tetrahafnium nonaarsenate, CsNa10Hf4(AsO4)9, arose as unexpected single-crystal products from the reactions of Na2CO3, MO2 (M = Zr, Hf) and As2O5 in a eutectic flux of NaCl and CsCl....
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| Format: | Article |
| Language: | English |
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International Union of Crystallography
2022-07-01
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| Series: | Acta Crystallographica Section E: Crystallographic Communications |
| Subjects: | |
| Online Access: | http://scripts.iucr.org/cgi-bin/paper?S2056989022006338 |
| _version_ | 1828775277506854912 |
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| author | William T. A. Harrison |
| author_facet | William T. A. Harrison |
| author_sort | William T. A. Harrison |
| collection | DOAJ |
| description | The isostructural compounds caesium decasodium tetrazirconium nonaarsenate, CsNa10Zr4(AsO4)9, and caesium decasodium tetrahafnium nonaarsenate, CsNa10Hf4(AsO4)9, arose as unexpected single-crystal products from the reactions of Na2CO3, MO2 (M = Zr, Hf) and As2O5 in a eutectic flux of NaCl and CsCl. They consist of MO6 octahedra and AsO4 tetrahedra sharing vertices to generate three-dimensional polyhedral networks encapsulating the caesium and sodium ions. The MO6 groups share all their vertices with adjacent As atoms but the As atoms have one or two `terminal' O atoms not bonded to Zr or Hf. The Cs+ ion adopts a squashed octahedral geometry and the coordination polyhedra of the partially occupied sodium ions are variously trigonal bipyramidal, tetrahedral, square pyramidal and trigonal pyramidal. Site symmetries: Cs \overline{3}; M 3; As 1 and 2; O 1; Na 1, 2 and 3. The M = Zr crystal was refined as an obverse/reverse rhombohedral twin. |
| first_indexed | 2024-12-11T15:37:26Z |
| format | Article |
| id | doaj.art-0b02a623b1554e1c9c6024fb4e0305b6 |
| institution | Directory Open Access Journal |
| issn | 2056-9890 |
| language | English |
| last_indexed | 2024-12-11T15:37:26Z |
| publishDate | 2022-07-01 |
| publisher | International Union of Crystallography |
| record_format | Article |
| series | Acta Crystallographica Section E: Crystallographic Communications |
| spelling | doaj.art-0b02a623b1554e1c9c6024fb4e0305b62022-12-22T00:59:54ZengInternational Union of CrystallographyActa Crystallographica Section E: Crystallographic Communications2056-98902022-07-0178773774110.1107/S2056989022006338pk2665Flux syntheses and single-crystal structures of CsNa10M4(AsO4)9 (M = Zr, Hf)William T. A. Harrison0Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen AB24 3UE, ScotlandThe isostructural compounds caesium decasodium tetrazirconium nonaarsenate, CsNa10Zr4(AsO4)9, and caesium decasodium tetrahafnium nonaarsenate, CsNa10Hf4(AsO4)9, arose as unexpected single-crystal products from the reactions of Na2CO3, MO2 (M = Zr, Hf) and As2O5 in a eutectic flux of NaCl and CsCl. They consist of MO6 octahedra and AsO4 tetrahedra sharing vertices to generate three-dimensional polyhedral networks encapsulating the caesium and sodium ions. The MO6 groups share all their vertices with adjacent As atoms but the As atoms have one or two `terminal' O atoms not bonded to Zr or Hf. The Cs+ ion adopts a squashed octahedral geometry and the coordination polyhedra of the partially occupied sodium ions are variously trigonal bipyramidal, tetrahedral, square pyramidal and trigonal pyramidal. Site symmetries: Cs \overline{3}; M 3; As 1 and 2; O 1; Na 1, 2 and 3. The M = Zr crystal was refined as an obverse/reverse rhombohedral twin.http://scripts.iucr.org/cgi-bin/paper?S2056989022006338crystal structurezirconiumhafniumarsenateionic conduction |
| spellingShingle | William T. A. Harrison Flux syntheses and single-crystal structures of CsNa10M4(AsO4)9 (M = Zr, Hf) Acta Crystallographica Section E: Crystallographic Communications crystal structure zirconium hafnium arsenate ionic conduction |
| title | Flux syntheses and single-crystal structures of CsNa10M4(AsO4)9 (M = Zr, Hf) |
| title_full | Flux syntheses and single-crystal structures of CsNa10M4(AsO4)9 (M = Zr, Hf) |
| title_fullStr | Flux syntheses and single-crystal structures of CsNa10M4(AsO4)9 (M = Zr, Hf) |
| title_full_unstemmed | Flux syntheses and single-crystal structures of CsNa10M4(AsO4)9 (M = Zr, Hf) |
| title_short | Flux syntheses and single-crystal structures of CsNa10M4(AsO4)9 (M = Zr, Hf) |
| title_sort | flux syntheses and single crystal structures of csna10m4 aso4 9 m zr hf |
| topic | crystal structure zirconium hafnium arsenate ionic conduction |
| url | http://scripts.iucr.org/cgi-bin/paper?S2056989022006338 |
| work_keys_str_mv | AT williamtaharrison fluxsynthesesandsinglecrystalstructuresofcsna10m4aso49mzrhf |