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Phase transition and structures of the twinned low-temperature phases of (Et(4)N)[ReS(4)]
The title compound, tetraethylammonium tetrathiorhenate, [(C(2)H(5))(4)N][ReS(4)], has, at room temperature, a disordered structure in the space group P6(3) mc (Z = 2, α-phase). A phase transition to the monoclinic space group P2(1) (Z = 2, γ-phase) at 285 K leads to a pseudo-merohedral twin. T...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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International Union of Crystallography
2020
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7057183/ https://www.ncbi.nlm.nih.gov/pubmed/32132280 http://dx.doi.org/10.1107/S205322961901725X |
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author | Bernhardt, Eduard Herbst-Irmer, Regine |
author_facet | Bernhardt, Eduard Herbst-Irmer, Regine |
author_sort | Bernhardt, Eduard |
collection | PubMed |
description | The title compound, tetraethylammonium tetrathiorhenate, [(C(2)H(5))(4)N][ReS(4)], has, at room temperature, a disordered structure in the space group P6(3) mc (Z = 2, α-phase). A phase transition to the monoclinic space group P2(1) (Z = 2, γ-phase) at 285 K leads to a pseudo-merohedral twin. The high deviation from the hexagonal metric causes split reflections. However, the different orientations could not be separated, but were integrated using a large integration box. Rapid cooling to 110–170 K produces a metastable β-phase (P6(3), Z = 18) in addition to the γ-phase. All crystals of the β-phase are contaminated with the γ-phase. Additionally, the crystals of the β-phase are merohedrally twinned. In contrast to the α-phase, the β- and γ-phases do not show disorder. |
format | Online Article Text |
id | pubmed-7057183 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | International Union of Crystallography |
record_format | MEDLINE/PubMed |
spelling | pubmed-70571832020-03-06 Phase transition and structures of the twinned low-temperature phases of (Et(4)N)[ReS(4)] Bernhardt, Eduard Herbst-Irmer, Regine Acta Crystallogr C Struct Chem Research Papers The title compound, tetraethylammonium tetrathiorhenate, [(C(2)H(5))(4)N][ReS(4)], has, at room temperature, a disordered structure in the space group P6(3) mc (Z = 2, α-phase). A phase transition to the monoclinic space group P2(1) (Z = 2, γ-phase) at 285 K leads to a pseudo-merohedral twin. The high deviation from the hexagonal metric causes split reflections. However, the different orientations could not be separated, but were integrated using a large integration box. Rapid cooling to 110–170 K produces a metastable β-phase (P6(3), Z = 18) in addition to the γ-phase. All crystals of the β-phase are contaminated with the γ-phase. Additionally, the crystals of the β-phase are merohedrally twinned. In contrast to the α-phase, the β- and γ-phases do not show disorder. International Union of Crystallography 2020-02-07 /pmc/articles/PMC7057183/ /pubmed/32132280 http://dx.doi.org/10.1107/S205322961901725X Text en © Bernhardt and Herbst-Irmer 2020 http://creativecommons.org/licenses/by/4.0/ 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/4.0/ |
spellingShingle | Research Papers Bernhardt, Eduard Herbst-Irmer, Regine Phase transition and structures of the twinned low-temperature phases of (Et(4)N)[ReS(4)] |
title | Phase transition and structures of the twinned low-temperature phases of (Et(4)N)[ReS(4)] |
title_full | Phase transition and structures of the twinned low-temperature phases of (Et(4)N)[ReS(4)] |
title_fullStr | Phase transition and structures of the twinned low-temperature phases of (Et(4)N)[ReS(4)] |
title_full_unstemmed | Phase transition and structures of the twinned low-temperature phases of (Et(4)N)[ReS(4)] |
title_short | Phase transition and structures of the twinned low-temperature phases of (Et(4)N)[ReS(4)] |
title_sort | phase transition and structures of the twinned low-temperature phases of (et(4)n)[res(4)] |
topic | Research Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7057183/ https://www.ncbi.nlm.nih.gov/pubmed/32132280 http://dx.doi.org/10.1107/S205322961901725X |
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