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Structure cristalline de type alluaudite K(0.4)Na(3.6)Co(MoO(4))(3)

A new triple molybdate, potassium sodium cobalt tris­(molybdate), K(0.4)Na(3.6)Co(MoO(4))(3), was synthesized using solid-state reactions. The Co(2+) and one Na(+) cation are located at the same general site, each with occupancy 0.5. Another site (site symmetry 2) is occupied by Na(+) and K(+) catio...

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Autores principales: Nasri, Rawia, Fakhar Bourguiba, Noura, Zid, Mohamed Faouzi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4331865/
https://www.ncbi.nlm.nih.gov/pubmed/25705436
http://dx.doi.org/10.1107/S2056989014025894
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author Nasri, Rawia
Fakhar Bourguiba, Noura
Zid, Mohamed Faouzi
author_facet Nasri, Rawia
Fakhar Bourguiba, Noura
Zid, Mohamed Faouzi
author_sort Nasri, Rawia
collection PubMed
description A new triple molybdate, potassium sodium cobalt tris­(molybdate), K(0.4)Na(3.6)Co(MoO(4))(3), was synthesized using solid-state reactions. The Co(2+) and one Na(+) cation are located at the same general site, each with occupancy 0.5. Another site (site symmetry 2) is occupied by Na(+) and K(+) cations, with occupancies of 0.597 (7) and 0.402 (6), respectively. The other two Na(+) cations and one of the two Mo atoms lie on special positions (site symmetries -1, 2 and 2, respectively). The structure is characterized by M (2)O(10) (M = Co/Na) dimers, which are linked by MoO(4) tetra­hedra, forming infinite layers. The latter are connected firstly by insertion of one type of MoO(4) tetra­hedra and secondly by sharing corners with the other type of MoO(4) tetra­hedra. This results in an open three-dimensional framework with the cavities occupied by the Na(+) and K(+) cations. The structure is isotypic with Na(3)In(2)As(3)O(12) and Na(3)In(2)P(3)O(12). A comparison is made with structures such as K(2)Co(2)(MoO(4))(3) and β-NaFe(2)(MoO(4))(3) and their differences are discussed.
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spelling pubmed-43318652015-02-20 Structure cristalline de type alluaudite K(0.4)Na(3.6)Co(MoO(4))(3) Nasri, Rawia Fakhar Bourguiba, Noura Zid, Mohamed Faouzi Acta Crystallogr E Crystallogr Commun Research Communications A new triple molybdate, potassium sodium cobalt tris­(molybdate), K(0.4)Na(3.6)Co(MoO(4))(3), was synthesized using solid-state reactions. The Co(2+) and one Na(+) cation are located at the same general site, each with occupancy 0.5. Another site (site symmetry 2) is occupied by Na(+) and K(+) cations, with occupancies of 0.597 (7) and 0.402 (6), respectively. The other two Na(+) cations and one of the two Mo atoms lie on special positions (site symmetries -1, 2 and 2, respectively). The structure is characterized by M (2)O(10) (M = Co/Na) dimers, which are linked by MoO(4) tetra­hedra, forming infinite layers. The latter are connected firstly by insertion of one type of MoO(4) tetra­hedra and secondly by sharing corners with the other type of MoO(4) tetra­hedra. This results in an open three-dimensional framework with the cavities occupied by the Na(+) and K(+) cations. The structure is isotypic with Na(3)In(2)As(3)O(12) and Na(3)In(2)P(3)O(12). A comparison is made with structures such as K(2)Co(2)(MoO(4))(3) and β-NaFe(2)(MoO(4))(3) and their differences are discussed. International Union of Crystallography 2015-01-01 /pmc/articles/PMC4331865/ /pubmed/25705436 http://dx.doi.org/10.1107/S2056989014025894 Text en © Nasri et al. 2015 http://creativecommons.org/licenses/by/2.0/uk/ This is an open-access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
spellingShingle Research Communications
Nasri, Rawia
Fakhar Bourguiba, Noura
Zid, Mohamed Faouzi
Structure cristalline de type alluaudite K(0.4)Na(3.6)Co(MoO(4))(3)
title Structure cristalline de type alluaudite K(0.4)Na(3.6)Co(MoO(4))(3)
title_full Structure cristalline de type alluaudite K(0.4)Na(3.6)Co(MoO(4))(3)
title_fullStr Structure cristalline de type alluaudite K(0.4)Na(3.6)Co(MoO(4))(3)
title_full_unstemmed Structure cristalline de type alluaudite K(0.4)Na(3.6)Co(MoO(4))(3)
title_short Structure cristalline de type alluaudite K(0.4)Na(3.6)Co(MoO(4))(3)
title_sort structure cristalline de type alluaudite k(0.4)na(3.6)co(moo(4))(3)
topic Research Communications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4331865/
https://www.ncbi.nlm.nih.gov/pubmed/25705436
http://dx.doi.org/10.1107/S2056989014025894
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