Synthèse et étude structrale de lyonsite-type (Na0,4,Li0,6)(Fe,Li2)(MoO4)3

The new compound (Na0.4,Li0.6)(Fe,Li2)(MoO4)3 was synthesized by cooling from the melt. Its anionic framework is built up from two distinct MO6 octahedra, each containing disordered Li+ and Fe3+ ions in 0.6:0.4 and 0.7:0.3 ratios, and two MoO4 tetrahedra, which link by vertex-sharing of their O atom...

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Main Authors: Amira Souilem, Mohamed Faouzi Zid, Ahmed Driss
Format: Article
Language:English
Published: International Union of Crystallography 2015-06-01
Series:Acta Crystallographica Section E: Crystallographic Communications
Subjects:
Online Access:http://scripts.iucr.org/cgi-bin/paper?S2056989015008737
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author Amira Souilem
Mohamed Faouzi Zid
Ahmed Driss
author_facet Amira Souilem
Mohamed Faouzi Zid
Ahmed Driss
author_sort Amira Souilem
collection DOAJ
description The new compound (Na0.4,Li0.6)(Fe,Li2)(MoO4)3 was synthesized by cooling from the melt. Its anionic framework is built up from two distinct MO6 octahedra, each containing disordered Li+ and Fe3+ ions in 0.6:0.4 and 0.7:0.3 ratios, and two MoO4 tetrahedra, which link by vertex-sharing of their O atoms. These tetrameric units are further linked by sharing edges between octahedra and by formation of M—O—Mo (M = Fe/Li) bridges, forming ribbons propagating in the [100] direction. The ribbons are cross-linked in both the b- and c-axis directions, giving rise to a three-dimensional framework having [100] tunnels in which the monovalent Na+/Li+ cations (0.4:0.6 ratio) lie. Bond-valence calculations are consistent with the disorder model for the cations. The structure of the title compound, which is isotypic with Li3Fe(MoO4)3 and Li3Ga(MoO4)3, is compared briefly with those of LiFeMo2O8 and Li1.6Mn2.2(MoO4)3.
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spelling doaj.art-5c2e251af8e6404c898bb9ae4c6de7242022-12-21T19:42:00ZengInternational Union of CrystallographyActa Crystallographica Section E: Crystallographic Communications2056-98902015-06-0171659760110.1107/S2056989015008737hb7397Synthèse et étude structrale de lyonsite-type (Na0,4,Li0,6)(Fe,Li2)(MoO4)3Amira Souilem0Mohamed Faouzi Zid1Ahmed Driss2Laboratoire de Matériaux et Cristallochimie, Faculté des Sciences de Tunis, Université de Tunis ElManar, 2092 Manar II Tunis, TunisieLaboratoire de Matériaux et Cristallochimie, Faculté des Sciences de Tunis, Université de Tunis ElManar, 2092 Manar II Tunis, TunisieLaboratoire de Matériaux et Cristallochimie, Faculté des Sciences de Tunis, Université de Tunis ElManar, 2092 Manar II Tunis, TunisieThe new compound (Na0.4,Li0.6)(Fe,Li2)(MoO4)3 was synthesized by cooling from the melt. Its anionic framework is built up from two distinct MO6 octahedra, each containing disordered Li+ and Fe3+ ions in 0.6:0.4 and 0.7:0.3 ratios, and two MoO4 tetrahedra, which link by vertex-sharing of their O atoms. These tetrameric units are further linked by sharing edges between octahedra and by formation of M—O—Mo (M = Fe/Li) bridges, forming ribbons propagating in the [100] direction. The ribbons are cross-linked in both the b- and c-axis directions, giving rise to a three-dimensional framework having [100] tunnels in which the monovalent Na+/Li+ cations (0.4:0.6 ratio) lie. Bond-valence calculations are consistent with the disorder model for the cations. The structure of the title compound, which is isotypic with Li3Fe(MoO4)3 and Li3Ga(MoO4)3, is compared briefly with those of LiFeMo2O8 and Li1.6Mn2.2(MoO4)3.http://scripts.iucr.org/cgi-bin/paper?S2056989015008737crystal structurelyonsite-typemonovalent cation molybdatebond-valence calculations
spellingShingle Amira Souilem
Mohamed Faouzi Zid
Ahmed Driss
Synthèse et étude structrale de lyonsite-type (Na0,4,Li0,6)(Fe,Li2)(MoO4)3
Acta Crystallographica Section E: Crystallographic Communications
crystal structure
lyonsite-type
monovalent cation molybdate
bond-valence calculations
title Synthèse et étude structrale de lyonsite-type (Na0,4,Li0,6)(Fe,Li2)(MoO4)3
title_full Synthèse et étude structrale de lyonsite-type (Na0,4,Li0,6)(Fe,Li2)(MoO4)3
title_fullStr Synthèse et étude structrale de lyonsite-type (Na0,4,Li0,6)(Fe,Li2)(MoO4)3
title_full_unstemmed Synthèse et étude structrale de lyonsite-type (Na0,4,Li0,6)(Fe,Li2)(MoO4)3
title_short Synthèse et étude structrale de lyonsite-type (Na0,4,Li0,6)(Fe,Li2)(MoO4)3
title_sort synthese et etude structrale de lyonsite type na0 4 li0 6 fe li2 moo4 3
topic crystal structure
lyonsite-type
monovalent cation molybdate
bond-valence calculations
url http://scripts.iucr.org/cgi-bin/paper?S2056989015008737
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