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Critical analysis of the limitations of Bleaney's theory of magnetic anisotropy in paramagnetic lanthanide coordination complexes
The origins of the breakdown of Bleaney's theory of magnetic anisotropy are described, based on an analysis of eleven different complexes of the second half of the 4f elements that form isostructural series. An examination of the chemical shift and relaxation rate behaviour of resonances locate...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Royal Society of Chemistry
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5812375/ https://www.ncbi.nlm.nih.gov/pubmed/29449916 http://dx.doi.org/10.1039/c4sc03429e |
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author | Funk, Alexander M. Finney, Katie-Louise N. A. Harvey, Peter Kenwright, Alan M. Neil, Emily R. Rogers, Nicola J. Kanthi Senanayake, P. Parker, David |
author_facet | Funk, Alexander M. Finney, Katie-Louise N. A. Harvey, Peter Kenwright, Alan M. Neil, Emily R. Rogers, Nicola J. Kanthi Senanayake, P. Parker, David |
author_sort | Funk, Alexander M. |
collection | PubMed |
description | The origins of the breakdown of Bleaney's theory of magnetic anisotropy are described, based on an analysis of eleven different complexes of the second half of the 4f elements that form isostructural series. An examination of the chemical shift and relaxation rate behaviour of resonances located at least four bonds away from the paramagnetic centre was undertaken, and correlated to theoretical predictions. The key limitations relate to comparability of ligand field splitting with spin–orbit coupling, variation in the position of the principal magnetic axis between Ln complexes and the importance of multipolar terms in describing lanthanide ligand field interactions. |
format | Online Article Text |
id | pubmed-5812375 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-58123752018-02-15 Critical analysis of the limitations of Bleaney's theory of magnetic anisotropy in paramagnetic lanthanide coordination complexes Funk, Alexander M. Finney, Katie-Louise N. A. Harvey, Peter Kenwright, Alan M. Neil, Emily R. Rogers, Nicola J. Kanthi Senanayake, P. Parker, David Chem Sci Chemistry The origins of the breakdown of Bleaney's theory of magnetic anisotropy are described, based on an analysis of eleven different complexes of the second half of the 4f elements that form isostructural series. An examination of the chemical shift and relaxation rate behaviour of resonances located at least four bonds away from the paramagnetic centre was undertaken, and correlated to theoretical predictions. The key limitations relate to comparability of ligand field splitting with spin–orbit coupling, variation in the position of the principal magnetic axis between Ln complexes and the importance of multipolar terms in describing lanthanide ligand field interactions. Royal Society of Chemistry 2015-03-01 2014-12-17 /pmc/articles/PMC5812375/ /pubmed/29449916 http://dx.doi.org/10.1039/c4sc03429e Text en This journal is © The Royal Society of Chemistry 2015 http://creativecommons.org/licenses/by/3.0/ This article is freely available. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence (CC BY 3.0) |
spellingShingle | Chemistry Funk, Alexander M. Finney, Katie-Louise N. A. Harvey, Peter Kenwright, Alan M. Neil, Emily R. Rogers, Nicola J. Kanthi Senanayake, P. Parker, David Critical analysis of the limitations of Bleaney's theory of magnetic anisotropy in paramagnetic lanthanide coordination complexes |
title | Critical analysis of the limitations of Bleaney's theory of magnetic anisotropy in paramagnetic lanthanide coordination complexes
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title_full | Critical analysis of the limitations of Bleaney's theory of magnetic anisotropy in paramagnetic lanthanide coordination complexes
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title_fullStr | Critical analysis of the limitations of Bleaney's theory of magnetic anisotropy in paramagnetic lanthanide coordination complexes
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title_full_unstemmed | Critical analysis of the limitations of Bleaney's theory of magnetic anisotropy in paramagnetic lanthanide coordination complexes
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title_short | Critical analysis of the limitations of Bleaney's theory of magnetic anisotropy in paramagnetic lanthanide coordination complexes
|
title_sort | critical analysis of the limitations of bleaney's theory of magnetic anisotropy in paramagnetic lanthanide coordination complexes |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5812375/ https://www.ncbi.nlm.nih.gov/pubmed/29449916 http://dx.doi.org/10.1039/c4sc03429e |
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