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Crystal structure of a silver-, cobalt- and iron-based phosphate with an alluaudite-like structure: Ag(1.655)Co(1.64)Fe(1.36)(PO(4))(3)

The new silver-, cobalt- and iron-based phosphate, silver cobalt iron tris(ortho­phosphate), Ag(1.655)Co(1.64)Fe(1.36)(PO(4))(3), was synthesized by solid-state reactions. Its structure is isotypic to that of Na(2)Co(2)Fe(PO(4))(3), and belongs to the alluaudite family, with a partial cationic disor...

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Autores principales: Bouraima, Adam, Makani, Thomas, Assani, Abderrazzak, Saadi, Mohamed, El Ammari, Lahcen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5458317/
https://www.ncbi.nlm.nih.gov/pubmed/28638652
http://dx.doi.org/10.1107/S205698901700740X
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author Bouraima, Adam
Makani, Thomas
Assani, Abderrazzak
Saadi, Mohamed
El Ammari, Lahcen
author_facet Bouraima, Adam
Makani, Thomas
Assani, Abderrazzak
Saadi, Mohamed
El Ammari, Lahcen
author_sort Bouraima, Adam
collection PubMed
description The new silver-, cobalt- and iron-based phosphate, silver cobalt iron tris(ortho­phosphate), Ag(1.655)Co(1.64)Fe(1.36)(PO(4))(3), was synthesized by solid-state reactions. Its structure is isotypic to that of Na(2)Co(2)Fe(PO(4))(3), and belongs to the alluaudite family, with a partial cationic disorder, the Ag(I) atoms being located on an inversion centre and twofold rotation axis sites (Wyckoff positions 4a and 4e), with partial occupancies of 0.885 (2) and 0.7688 (19), respectively. One of the two P atoms in the asymmetric unit completely fills one 4e site while the Co and Fe atoms fill another 4e site, with partial occupancies of 0.86 (5) and 0.14 (5), respectively. The remaining Co(2+) and Fe(3+) cations are distributed on a general position, 8f, in a 0.39 (4):0.61 (4) ratio. All O atoms and the other P atoms are in general positions. The structure is built up from zigzag chains of edge-sharing [MO(6)] (M = Fe/Co) octa­hedra stacked parallel to [101]. These chains are linked together through PO(4) tetra­hedra, forming polyhedral sheets perpendicular to [010]. The resulting framework displays two types of channels running along [001], in which the Ag(I) atoms (coordination number eight) are located.
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spelling pubmed-54583172017-06-21 Crystal structure of a silver-, cobalt- and iron-based phosphate with an alluaudite-like structure: Ag(1.655)Co(1.64)Fe(1.36)(PO(4))(3) Bouraima, Adam Makani, Thomas Assani, Abderrazzak Saadi, Mohamed El Ammari, Lahcen Acta Crystallogr E Crystallogr Commun Research Communications The new silver-, cobalt- and iron-based phosphate, silver cobalt iron tris(ortho­phosphate), Ag(1.655)Co(1.64)Fe(1.36)(PO(4))(3), was synthesized by solid-state reactions. Its structure is isotypic to that of Na(2)Co(2)Fe(PO(4))(3), and belongs to the alluaudite family, with a partial cationic disorder, the Ag(I) atoms being located on an inversion centre and twofold rotation axis sites (Wyckoff positions 4a and 4e), with partial occupancies of 0.885 (2) and 0.7688 (19), respectively. One of the two P atoms in the asymmetric unit completely fills one 4e site while the Co and Fe atoms fill another 4e site, with partial occupancies of 0.86 (5) and 0.14 (5), respectively. The remaining Co(2+) and Fe(3+) cations are distributed on a general position, 8f, in a 0.39 (4):0.61 (4) ratio. All O atoms and the other P atoms are in general positions. The structure is built up from zigzag chains of edge-sharing [MO(6)] (M = Fe/Co) octa­hedra stacked parallel to [101]. These chains are linked together through PO(4) tetra­hedra, forming polyhedral sheets perpendicular to [010]. The resulting framework displays two types of channels running along [001], in which the Ag(I) atoms (coordination number eight) are located. International Union of Crystallography 2017-05-26 /pmc/articles/PMC5458317/ /pubmed/28638652 http://dx.doi.org/10.1107/S205698901700740X Text en © Bouraima et al. 2017 http://creativecommons.org/licenses/by/2.0/uk/ This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.http://creativecommons.org/licenses/by/2.0/uk/
spellingShingle Research Communications
Bouraima, Adam
Makani, Thomas
Assani, Abderrazzak
Saadi, Mohamed
El Ammari, Lahcen
Crystal structure of a silver-, cobalt- and iron-based phosphate with an alluaudite-like structure: Ag(1.655)Co(1.64)Fe(1.36)(PO(4))(3)
title Crystal structure of a silver-, cobalt- and iron-based phosphate with an alluaudite-like structure: Ag(1.655)Co(1.64)Fe(1.36)(PO(4))(3)
title_full Crystal structure of a silver-, cobalt- and iron-based phosphate with an alluaudite-like structure: Ag(1.655)Co(1.64)Fe(1.36)(PO(4))(3)
title_fullStr Crystal structure of a silver-, cobalt- and iron-based phosphate with an alluaudite-like structure: Ag(1.655)Co(1.64)Fe(1.36)(PO(4))(3)
title_full_unstemmed Crystal structure of a silver-, cobalt- and iron-based phosphate with an alluaudite-like structure: Ag(1.655)Co(1.64)Fe(1.36)(PO(4))(3)
title_short Crystal structure of a silver-, cobalt- and iron-based phosphate with an alluaudite-like structure: Ag(1.655)Co(1.64)Fe(1.36)(PO(4))(3)
title_sort crystal structure of a silver-, cobalt- and iron-based phosphate with an alluaudite-like structure: ag(1.655)co(1.64)fe(1.36)(po(4))(3)
topic Research Communications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5458317/
https://www.ncbi.nlm.nih.gov/pubmed/28638652
http://dx.doi.org/10.1107/S205698901700740X
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