Redetermination and new description of the crystal structure of vanthoffite, Na6Mg(SO4)4

Publikation: Bidrag til tidsskriftReviewForskningfagfællebedømt

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Redetermination and new description of the crystal structure of vanthoffite, Na6Mg(SO4)4. / Balić-Žunić, Tonči; Pamato, Martha G.; Nestola, Fabrizio.

I: Acta Crystallographica Section E: Crystallographic Communications, Bind 76, Nr. 6, 2020, s. 785-789.

Publikation: Bidrag til tidsskriftReviewForskningfagfællebedømt

Harvard

Balić-Žunić, T, Pamato, MG & Nestola, F 2020, 'Redetermination and new description of the crystal structure of vanthoffite, Na6Mg(SO4)4', Acta Crystallographica Section E: Crystallographic Communications, bind 76, nr. 6, s. 785-789. https://doi.org/10.1107/S2056989020005873

APA

Balić-Žunić, T., Pamato, M. G., & Nestola, F. (2020). Redetermination and new description of the crystal structure of vanthoffite, Na6Mg(SO4)4. Acta Crystallographica Section E: Crystallographic Communications, 76(6), 785-789. https://doi.org/10.1107/S2056989020005873

Vancouver

Balić-Žunić T, Pamato MG, Nestola F. Redetermination and new description of the crystal structure of vanthoffite, Na6Mg(SO4)4. Acta Crystallographica Section E: Crystallographic Communications. 2020;76(6):785-789. https://doi.org/10.1107/S2056989020005873

Author

Balić-Žunić, Tonči ; Pamato, Martha G. ; Nestola, Fabrizio. / Redetermination and new description of the crystal structure of vanthoffite, Na6Mg(SO4)4. I: Acta Crystallographica Section E: Crystallographic Communications. 2020 ; Bind 76, Nr. 6. s. 785-789.

Bibtex

@article{4ac310283a2848fc9f57f10b351085b7,
title = "Redetermination and new description of the crystal structure of vanthoffite, Na6Mg(SO4)4",
abstract = "The crystal structure of vanthoffite {hexasodium magnesium tetrakis-[sulfate(VI)]}, Na6Mg(SO4)4, was solved in the year 1964 on a synthetic sample [Fischer & Hellner (1964). Acta Cryst. 17, 1613]. Here we report a redetermination of its crystal structure on a mineral sample with improved precision. It was refined in the space group P21/c from a crystal originating from Surtsey, Iceland. The unique Mg (site symmetry 1) and the two S atoms are in usual, only slightly distorted octahedral and tetrahedral coordinations, respectively. The three independent Na atoms are in a distorted octahedral coordination (1×) and distorted 7-coordinations intermediate between a ‘split octahedron’ and a pentagonal bipyramid (2×). [MgO6] coordination polyhedra interchange with one half of the sulfate tetrahedra in <011> chains forming a (100) meshed layer, with dimers formed by edge-sharing [NaO7] polyhedra filling the interchain spaces. The other [NaO7] polyhedra are organized in a parallel layer formed by [010] and [001] chains united through edge sharing and bonds to the remaining half of sulfate groups and to [NaO6] octahedra. The two types of layers interconnect through tight bonding, which explains the lack of morphological characteristics typical of layered structures.",
keywords = "Atomic coordinations, Crystal structure, Na-Mg sulfate, Redetermination, Vanthoffite",
author = "Tonči Balić-Žunić and Pamato, {Martha G.} and Fabrizio Nestola",
year = "2020",
doi = "10.1107/S2056989020005873",
language = "English",
volume = "76",
pages = "785--789",
journal = "Acta Crystallographica. Section E: Structure Reports Online",
issn = "1600-5368",
publisher = "Wiley-Blackwell",
number = "6",

}

RIS

TY - JOUR

T1 - Redetermination and new description of the crystal structure of vanthoffite, Na6Mg(SO4)4

AU - Balić-Žunić, Tonči

AU - Pamato, Martha G.

AU - Nestola, Fabrizio

PY - 2020

Y1 - 2020

N2 - The crystal structure of vanthoffite {hexasodium magnesium tetrakis-[sulfate(VI)]}, Na6Mg(SO4)4, was solved in the year 1964 on a synthetic sample [Fischer & Hellner (1964). Acta Cryst. 17, 1613]. Here we report a redetermination of its crystal structure on a mineral sample with improved precision. It was refined in the space group P21/c from a crystal originating from Surtsey, Iceland. The unique Mg (site symmetry 1) and the two S atoms are in usual, only slightly distorted octahedral and tetrahedral coordinations, respectively. The three independent Na atoms are in a distorted octahedral coordination (1×) and distorted 7-coordinations intermediate between a ‘split octahedron’ and a pentagonal bipyramid (2×). [MgO6] coordination polyhedra interchange with one half of the sulfate tetrahedra in <011> chains forming a (100) meshed layer, with dimers formed by edge-sharing [NaO7] polyhedra filling the interchain spaces. The other [NaO7] polyhedra are organized in a parallel layer formed by [010] and [001] chains united through edge sharing and bonds to the remaining half of sulfate groups and to [NaO6] octahedra. The two types of layers interconnect through tight bonding, which explains the lack of morphological characteristics typical of layered structures.

AB - The crystal structure of vanthoffite {hexasodium magnesium tetrakis-[sulfate(VI)]}, Na6Mg(SO4)4, was solved in the year 1964 on a synthetic sample [Fischer & Hellner (1964). Acta Cryst. 17, 1613]. Here we report a redetermination of its crystal structure on a mineral sample with improved precision. It was refined in the space group P21/c from a crystal originating from Surtsey, Iceland. The unique Mg (site symmetry 1) and the two S atoms are in usual, only slightly distorted octahedral and tetrahedral coordinations, respectively. The three independent Na atoms are in a distorted octahedral coordination (1×) and distorted 7-coordinations intermediate between a ‘split octahedron’ and a pentagonal bipyramid (2×). [MgO6] coordination polyhedra interchange with one half of the sulfate tetrahedra in <011> chains forming a (100) meshed layer, with dimers formed by edge-sharing [NaO7] polyhedra filling the interchain spaces. The other [NaO7] polyhedra are organized in a parallel layer formed by [010] and [001] chains united through edge sharing and bonds to the remaining half of sulfate groups and to [NaO6] octahedra. The two types of layers interconnect through tight bonding, which explains the lack of morphological characteristics typical of layered structures.

KW - Atomic coordinations

KW - Crystal structure

KW - Na-Mg sulfate

KW - Redetermination

KW - Vanthoffite

U2 - 10.1107/S2056989020005873

DO - 10.1107/S2056989020005873

M3 - Review

C2 - 32523739

AN - SCOPUS:85086088507

VL - 76

SP - 785

EP - 789

JO - Acta Crystallographica. Section E: Structure Reports Online

JF - Acta Crystallographica. Section E: Structure Reports Online

SN - 1600-5368

IS - 6

ER -

ID: 243377277