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The Effect of Crystal Packing and Re(IV) Ions on the Magnetisation Relaxation of [Mn(6)]-Based Molecular Magnets
The energy barrier to magnetisation relaxation in single-molecule magnets (SMMs) proffers potential technological applications in high-density information storage and quantum computation. Leading candidates amongst complexes of 3d metals ions are the hexametallic family of complexes of formula [Mn(6...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
WILEY-VCH Verlag
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4471585/ https://www.ncbi.nlm.nih.gov/pubmed/25951415 http://dx.doi.org/10.1002/chem.201500439 |
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author | Martínez-Lillo, José Cano, Joan Wernsdorfer, Wolfgang Brechin, Euan K |
author_facet | Martínez-Lillo, José Cano, Joan Wernsdorfer, Wolfgang Brechin, Euan K |
author_sort | Martínez-Lillo, José |
collection | PubMed |
description | The energy barrier to magnetisation relaxation in single-molecule magnets (SMMs) proffers potential technological applications in high-density information storage and quantum computation. Leading candidates amongst complexes of 3d metals ions are the hexametallic family of complexes of formula [Mn(6)O(2)(R-sao)(6)(X)(2)(solvent)(y)] (saoH(2)=salicylaldoxime; X=mono-anion; y=4–6; R=H, Me, Et, and Ph). The recent synthesis of cationic [Mn(6)][ClO(4)](2) family members, in which the coordinating X ions were replaced with non-coordinating anions, opened the gateway to constructing families of novel [Mn(6)] salts in which the identity and nature of the charge balancing anions could be employed to alter the physical properties of the complex. Herein we demonstrate initial experiments to show that this is indeed possible. By replacing the diamagnetic ClO(4)(−) anions with the highly anisotropic Re(IV) ion in the form of [Re(IV)Cl(6)](2−), the energy barrier to magnetisation relaxation is increased by up to 30 %. |
format | Online Article Text |
id | pubmed-4471585 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | WILEY-VCH Verlag |
record_format | MEDLINE/PubMed |
spelling | pubmed-44715852015-06-23 The Effect of Crystal Packing and Re(IV) Ions on the Magnetisation Relaxation of [Mn(6)]-Based Molecular Magnets Martínez-Lillo, José Cano, Joan Wernsdorfer, Wolfgang Brechin, Euan K Chemistry Full Papers The energy barrier to magnetisation relaxation in single-molecule magnets (SMMs) proffers potential technological applications in high-density information storage and quantum computation. Leading candidates amongst complexes of 3d metals ions are the hexametallic family of complexes of formula [Mn(6)O(2)(R-sao)(6)(X)(2)(solvent)(y)] (saoH(2)=salicylaldoxime; X=mono-anion; y=4–6; R=H, Me, Et, and Ph). The recent synthesis of cationic [Mn(6)][ClO(4)](2) family members, in which the coordinating X ions were replaced with non-coordinating anions, opened the gateway to constructing families of novel [Mn(6)] salts in which the identity and nature of the charge balancing anions could be employed to alter the physical properties of the complex. Herein we demonstrate initial experiments to show that this is indeed possible. By replacing the diamagnetic ClO(4)(−) anions with the highly anisotropic Re(IV) ion in the form of [Re(IV)Cl(6)](2−), the energy barrier to magnetisation relaxation is increased by up to 30 %. WILEY-VCH Verlag 2015-06-08 2015-05-07 /pmc/articles/PMC4471585/ /pubmed/25951415 http://dx.doi.org/10.1002/chem.201500439 Text en © 2015 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Full Papers Martínez-Lillo, José Cano, Joan Wernsdorfer, Wolfgang Brechin, Euan K The Effect of Crystal Packing and Re(IV) Ions on the Magnetisation Relaxation of [Mn(6)]-Based Molecular Magnets |
title | The Effect of Crystal Packing and Re(IV) Ions on the Magnetisation Relaxation of [Mn(6)]-Based Molecular Magnets |
title_full | The Effect of Crystal Packing and Re(IV) Ions on the Magnetisation Relaxation of [Mn(6)]-Based Molecular Magnets |
title_fullStr | The Effect of Crystal Packing and Re(IV) Ions on the Magnetisation Relaxation of [Mn(6)]-Based Molecular Magnets |
title_full_unstemmed | The Effect of Crystal Packing and Re(IV) Ions on the Magnetisation Relaxation of [Mn(6)]-Based Molecular Magnets |
title_short | The Effect of Crystal Packing and Re(IV) Ions on the Magnetisation Relaxation of [Mn(6)]-Based Molecular Magnets |
title_sort | effect of crystal packing and re(iv) ions on the magnetisation relaxation of [mn(6)]-based molecular magnets |
topic | Full Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4471585/ https://www.ncbi.nlm.nih.gov/pubmed/25951415 http://dx.doi.org/10.1002/chem.201500439 |
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