Cargando…
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...
Autores principales: | , , |
---|---|
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 |
_version_ | 1782357796883267584 |
---|---|
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. |
format | Online Article Text |
id | pubmed-4331865 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | International Union of Crystallography |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT nasrirawia structurecristallinedetypealluauditek04na36comoo43 AT fakharbourguibanoura structurecristallinedetypealluauditek04na36comoo43 AT zidmohamedfaouzi structurecristallinedetypealluauditek04na36comoo43 |