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Single-Ion Behavior in New 2-D and 3-D Gadolinium 4f(7) Materials: CsGd(SO(4))(2) and Cs[Gd(H(2)O)(3)(SO(4))(2)]·H(2)O
[Image: see text] The recent creation of 4f(7) gadolinium materials has enabled vital studies of the free-ion properties of the Gd(III) cations. While the (8)S ground state in a trivalent Gd compound is, in principle, isotropic, it has been demonstrated that there is a residual orbital angular momen...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9955392/ https://www.ncbi.nlm.nih.gov/pubmed/36855531 http://dx.doi.org/10.1021/acsorginorgau.2c00031 |
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author | Oyeka, Ebube E. Tran, Thao T. |
author_facet | Oyeka, Ebube E. Tran, Thao T. |
author_sort | Oyeka, Ebube E. |
collection | PubMed |
description | [Image: see text] The recent creation of 4f(7) gadolinium materials has enabled vital studies of the free-ion properties of the Gd(III) cations. While the (8)S ground state in a trivalent Gd compound is, in principle, isotropic, it has been demonstrated that there is a residual orbital angular momentum affected by the crystal field and structural distortion in certain systems. By exploiting the atomistic control innate to material growth, we address a fundamental question of how the isotropic nature of Gd(III) is preserved in different dimensionalities of crystal structures. To achieve this, we designed two new trivalent Gd materials possessing two structurally distinct features, a 2-D CsGd(SO(4))(2) and a 3-D Cs[Gd(H(2)O)(3)(SO(4))(2)]·H(2)O. The tunability of the structural dimension is facilitated by O–H---O hydrogen bonds. The structural divergence between the two compounds allows us to investigate each material individually and make a comparison between them regarding their physical properties as a function of lattice dimension. Our results demonstrate that structural dimensions have a negligible effect on the single-ion behavior of the materials. Magnetization measurements for the Gd(III) complexes yielded paramagnetic states with the isotropic spin-only nature. Specific heat data suggest that there is a lack of magnetic phase transition down to T = 1.8 K, and coupled lattice vibrations in the materials are attributable to strong covalent bonding characters of the (SO(4))(2–) and H(2)O ligands. This work offers a pathway for retaining the single-ion property of Gd(III) while constructing the large spin magnetic moment S = 7/2 in large-scale extended frameworks. |
format | Online Article Text |
id | pubmed-9955392 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-99553922023-02-27 Single-Ion Behavior in New 2-D and 3-D Gadolinium 4f(7) Materials: CsGd(SO(4))(2) and Cs[Gd(H(2)O)(3)(SO(4))(2)]·H(2)O Oyeka, Ebube E. Tran, Thao T. ACS Org Inorg Au [Image: see text] The recent creation of 4f(7) gadolinium materials has enabled vital studies of the free-ion properties of the Gd(III) cations. While the (8)S ground state in a trivalent Gd compound is, in principle, isotropic, it has been demonstrated that there is a residual orbital angular momentum affected by the crystal field and structural distortion in certain systems. By exploiting the atomistic control innate to material growth, we address a fundamental question of how the isotropic nature of Gd(III) is preserved in different dimensionalities of crystal structures. To achieve this, we designed two new trivalent Gd materials possessing two structurally distinct features, a 2-D CsGd(SO(4))(2) and a 3-D Cs[Gd(H(2)O)(3)(SO(4))(2)]·H(2)O. The tunability of the structural dimension is facilitated by O–H---O hydrogen bonds. The structural divergence between the two compounds allows us to investigate each material individually and make a comparison between them regarding their physical properties as a function of lattice dimension. Our results demonstrate that structural dimensions have a negligible effect on the single-ion behavior of the materials. Magnetization measurements for the Gd(III) complexes yielded paramagnetic states with the isotropic spin-only nature. Specific heat data suggest that there is a lack of magnetic phase transition down to T = 1.8 K, and coupled lattice vibrations in the materials are attributable to strong covalent bonding characters of the (SO(4))(2–) and H(2)O ligands. This work offers a pathway for retaining the single-ion property of Gd(III) while constructing the large spin magnetic moment S = 7/2 in large-scale extended frameworks. American Chemical Society 2022-09-04 /pmc/articles/PMC9955392/ /pubmed/36855531 http://dx.doi.org/10.1021/acsorginorgau.2c00031 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 | Oyeka, Ebube E. Tran, Thao T. Single-Ion Behavior in New 2-D and 3-D Gadolinium 4f(7) Materials: CsGd(SO(4))(2) and Cs[Gd(H(2)O)(3)(SO(4))(2)]·H(2)O |
title | Single-Ion
Behavior in New 2-D and 3-D
Gadolinium 4f(7) Materials: CsGd(SO(4))(2) and Cs[Gd(H(2)O)(3)(SO(4))(2)]·H(2)O |
title_full | Single-Ion
Behavior in New 2-D and 3-D
Gadolinium 4f(7) Materials: CsGd(SO(4))(2) and Cs[Gd(H(2)O)(3)(SO(4))(2)]·H(2)O |
title_fullStr | Single-Ion
Behavior in New 2-D and 3-D
Gadolinium 4f(7) Materials: CsGd(SO(4))(2) and Cs[Gd(H(2)O)(3)(SO(4))(2)]·H(2)O |
title_full_unstemmed | Single-Ion
Behavior in New 2-D and 3-D
Gadolinium 4f(7) Materials: CsGd(SO(4))(2) and Cs[Gd(H(2)O)(3)(SO(4))(2)]·H(2)O |
title_short | Single-Ion
Behavior in New 2-D and 3-D
Gadolinium 4f(7) Materials: CsGd(SO(4))(2) and Cs[Gd(H(2)O)(3)(SO(4))(2)]·H(2)O |
title_sort | single-ion
behavior in new 2-d and 3-d
gadolinium 4f(7) materials: csgd(so(4))(2) and cs[gd(h(2)o)(3)(so(4))(2)]·h(2)o |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9955392/ https://www.ncbi.nlm.nih.gov/pubmed/36855531 http://dx.doi.org/10.1021/acsorginorgau.2c00031 |
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