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From a Dense Structure to Open Frameworks: The Structural Plethora of Alkali Metal Iron Fluorophosphates

[Image: see text] By employing the pyridinium hexafluorophosphate task-specific ionic liquids 1-butyl-4-methylpyridinium hexafluorophosphate ([C(4)mpyr][PF(6)]) and 1-ethylpyridinium hexafluorophosphate ([C(2)pyr][PF(6)]) as the reaction medium, mineralizer, structure-directing agent, and, in the ca...

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Autores principales: Siebeneichler, Stefanie, Dorn, Katharina V., Smetana, Volodymyr, Ovchinnikov, Alexander, Mudring, Anja-Verena
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9490823/
https://www.ncbi.nlm.nih.gov/pubmed/35699656
http://dx.doi.org/10.1021/acs.inorgchem.2c01205
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author Siebeneichler, Stefanie
Dorn, Katharina V.
Smetana, Volodymyr
Ovchinnikov, Alexander
Mudring, Anja-Verena
author_facet Siebeneichler, Stefanie
Dorn, Katharina V.
Smetana, Volodymyr
Ovchinnikov, Alexander
Mudring, Anja-Verena
author_sort Siebeneichler, Stefanie
collection PubMed
description [Image: see text] By employing the pyridinium hexafluorophosphate task-specific ionic liquids 1-butyl-4-methylpyridinium hexafluorophosphate ([C(4)mpyr][PF(6)]) and 1-ethylpyridinium hexafluorophosphate ([C(2)pyr][PF(6)]) as the reaction medium, mineralizer, structure-directing agent, and, in the case of the smaller pyridinium cation, even a structural component, it was possible to obtain five new alkali metal iron phosphates featuring interconnected FeX(6) octahedra and PX(4) (X = F, O, or OH) tetrahedra. NaFe(PO(3)F)(2) (1) is a dense 3D structure, RbFe(PO(3)F)(PO(2)(OH)F)(PO(2)(OH)(2)) (2) features 1D strands, (C(2)pyr)LiFe(PO(3)F)(3)(PO(2)F(2))F (3) has 2D layers, and LiFe(PO(3)F)(PO(2)F(2))F (4) as well as Cs(0.75)Fe(PO(2.75)(OH)(0.25)F)(PO(2)F(2))(2) (5) are 3D open frameworks. While in 1–2 as well as in 4 and 5, FeX(6) octahedra and PX(4) (X = F, O, or OH) tetrahedra alternate, 3 features octahedra dimers, Fe(2)X(11) (X = F, O, or OH). The magnetic behavior of all compounds is governed by antiferromagnetic interactions. Interestingly, 3 exhibits a broad maximum in the temperature dependence of the magnetic susceptibility, characteristic of a low-dimensional magnetic system consistent with the presence of Fe–Fe dimers in its crystal structure.
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spelling pubmed-94908232022-09-22 From a Dense Structure to Open Frameworks: The Structural Plethora of Alkali Metal Iron Fluorophosphates Siebeneichler, Stefanie Dorn, Katharina V. Smetana, Volodymyr Ovchinnikov, Alexander Mudring, Anja-Verena Inorg Chem [Image: see text] By employing the pyridinium hexafluorophosphate task-specific ionic liquids 1-butyl-4-methylpyridinium hexafluorophosphate ([C(4)mpyr][PF(6)]) and 1-ethylpyridinium hexafluorophosphate ([C(2)pyr][PF(6)]) as the reaction medium, mineralizer, structure-directing agent, and, in the case of the smaller pyridinium cation, even a structural component, it was possible to obtain five new alkali metal iron phosphates featuring interconnected FeX(6) octahedra and PX(4) (X = F, O, or OH) tetrahedra. NaFe(PO(3)F)(2) (1) is a dense 3D structure, RbFe(PO(3)F)(PO(2)(OH)F)(PO(2)(OH)(2)) (2) features 1D strands, (C(2)pyr)LiFe(PO(3)F)(3)(PO(2)F(2))F (3) has 2D layers, and LiFe(PO(3)F)(PO(2)F(2))F (4) as well as Cs(0.75)Fe(PO(2.75)(OH)(0.25)F)(PO(2)F(2))(2) (5) are 3D open frameworks. While in 1–2 as well as in 4 and 5, FeX(6) octahedra and PX(4) (X = F, O, or OH) tetrahedra alternate, 3 features octahedra dimers, Fe(2)X(11) (X = F, O, or OH). The magnetic behavior of all compounds is governed by antiferromagnetic interactions. Interestingly, 3 exhibits a broad maximum in the temperature dependence of the magnetic susceptibility, characteristic of a low-dimensional magnetic system consistent with the presence of Fe–Fe dimers in its crystal structure. American Chemical Society 2022-06-14 2022-06-27 /pmc/articles/PMC9490823/ /pubmed/35699656 http://dx.doi.org/10.1021/acs.inorgchem.2c01205 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Siebeneichler, Stefanie
Dorn, Katharina V.
Smetana, Volodymyr
Ovchinnikov, Alexander
Mudring, Anja-Verena
From a Dense Structure to Open Frameworks: The Structural Plethora of Alkali Metal Iron Fluorophosphates
title From a Dense Structure to Open Frameworks: The Structural Plethora of Alkali Metal Iron Fluorophosphates
title_full From a Dense Structure to Open Frameworks: The Structural Plethora of Alkali Metal Iron Fluorophosphates
title_fullStr From a Dense Structure to Open Frameworks: The Structural Plethora of Alkali Metal Iron Fluorophosphates
title_full_unstemmed From a Dense Structure to Open Frameworks: The Structural Plethora of Alkali Metal Iron Fluorophosphates
title_short From a Dense Structure to Open Frameworks: The Structural Plethora of Alkali Metal Iron Fluorophosphates
title_sort from a dense structure to open frameworks: the structural plethora of alkali metal iron fluorophosphates
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9490823/
https://www.ncbi.nlm.nih.gov/pubmed/35699656
http://dx.doi.org/10.1021/acs.inorgchem.2c01205
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