Importance of Axial Symmetry in Elucidating Lanthanide-Transition Metal Interactions
In this paper, we experimentally study and model the electron donating character of an axial diamagnetic Pd ion in four metalloligated lanthanide complexes of formula [PPh ][Ln{Pd(SAc) } ] (SAc = thioacetate, Ln = Tb, Dy, Ho, and Er). A global model encompassing inelastic neutron scattering, torque...
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| Published in: | Inorganic chemistry Vol. 59; no. 1; p. 235 |
|---|---|
| Main Authors: | , , , , , , , , , |
| Format: | Journal Article |
| Language: | English |
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United States
06.01.2020
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| ISSN: | 1520-510X, 1520-510X |
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| Abstract | In this paper, we experimentally study and model the electron donating character of an axial diamagnetic Pd
ion in four metalloligated lanthanide complexes of formula [PPh
][Ln{Pd(SAc)
}
] (SAc
= thioacetate, Ln = Tb, Dy, Ho, and Er). A global model encompassing inelastic neutron scattering, torque magnetometry, and dc magnetometry allows to precisely determine the energy level structure of the complexes. Solid state nuclear magnetic resonance reveals a less donating character of Pd
compared to the previously reported isostructural Pt
-based complexes. Consequently, all complexes invariably show a lower crystal field strength compared to their Pt
-analogues. The dynamic properties show an enhanced single molecule magnet behavior due to the suppression of quantum tunneling, in agreement with our model. |
|---|---|
| AbstractList | In this paper, we experimentally study and model the electron donating character of an axial diamagnetic Pd
ion in four metalloligated lanthanide complexes of formula [PPh
][Ln{Pd(SAc)
}
] (SAc
= thioacetate, Ln = Tb, Dy, Ho, and Er). A global model encompassing inelastic neutron scattering, torque magnetometry, and dc magnetometry allows to precisely determine the energy level structure of the complexes. Solid state nuclear magnetic resonance reveals a less donating character of Pd
compared to the previously reported isostructural Pt
-based complexes. Consequently, all complexes invariably show a lower crystal field strength compared to their Pt
-analogues. The dynamic properties show an enhanced single molecule magnet behavior due to the suppression of quantum tunneling, in agreement with our model. In this paper, we experimentally study and model the electron donating character of an axial diamagnetic Pd2+ ion in four metalloligated lanthanide complexes of formula [PPh4][Ln{Pd(SAc)4}2] (SAc- = thioacetate, Ln = Tb, Dy, Ho, and Er). A global model encompassing inelastic neutron scattering, torque magnetometry, and dc magnetometry allows to precisely determine the energy level structure of the complexes. Solid state nuclear magnetic resonance reveals a less donating character of Pd2+ compared to the previously reported isostructural Pt2+-based complexes. Consequently, all complexes invariably show a lower crystal field strength compared to their Pt2+-analogues. The dynamic properties show an enhanced single molecule magnet behavior due to the suppression of quantum tunneling, in agreement with our model.In this paper, we experimentally study and model the electron donating character of an axial diamagnetic Pd2+ ion in four metalloligated lanthanide complexes of formula [PPh4][Ln{Pd(SAc)4}2] (SAc- = thioacetate, Ln = Tb, Dy, Ho, and Er). A global model encompassing inelastic neutron scattering, torque magnetometry, and dc magnetometry allows to precisely determine the energy level structure of the complexes. Solid state nuclear magnetic resonance reveals a less donating character of Pd2+ compared to the previously reported isostructural Pt2+-based complexes. Consequently, all complexes invariably show a lower crystal field strength compared to their Pt2+-analogues. The dynamic properties show an enhanced single molecule magnet behavior due to the suppression of quantum tunneling, in agreement with our model. |
| Author | Ollivier, Jacques Bonde, Niels A Weihe, Høgni Bendix, Jesper Fåk, Björn Perfetti, Mauro Sørensen, Mikkel A Petersen, Jonatan B Rols, Stéphane Nielsen, Ulla G |
| Author_xml | – sequence: 1 givenname: Niels A surname: Bonde fullname: Bonde, Niels A organization: Institut Laue-Langevin , 71 avenue des Martyrs, CS 20156 , 38042 Grenoble Cedex 9 , France – sequence: 2 givenname: Jonatan B surname: Petersen fullname: Petersen, Jonatan B organization: Department of Chemistry , University of Copenhagen , Universitetsparken 5 , DK-2100 Copenhagen , Denmark – sequence: 3 givenname: Mikkel A surname: Sørensen fullname: Sørensen, Mikkel A organization: Department of Chemistry , University of Copenhagen , Universitetsparken 5 , DK-2100 Copenhagen , Denmark – sequence: 4 givenname: Ulla G orcidid: 0000-0002-2336-3061 surname: Nielsen fullname: Nielsen, Ulla G organization: Department of Physics, Chemistry and Pharmacy , University of Southern Denmark , Campusvej 55 , 5230 Odense M , Denmark – sequence: 5 givenname: Björn surname: Fåk fullname: Fåk, Björn organization: Institut Laue-Langevin , 71 avenue des Martyrs, CS 20156 , 38042 Grenoble Cedex 9 , France – sequence: 6 givenname: Stéphane surname: Rols fullname: Rols, Stéphane organization: Institut Laue-Langevin , 71 avenue des Martyrs, CS 20156 , 38042 Grenoble Cedex 9 , France – sequence: 7 givenname: Jacques surname: Ollivier fullname: Ollivier, Jacques organization: Institut Laue-Langevin , 71 avenue des Martyrs, CS 20156 , 38042 Grenoble Cedex 9 , France – sequence: 8 givenname: Høgni surname: Weihe fullname: Weihe, Høgni organization: Department of Chemistry , University of Copenhagen , Universitetsparken 5 , DK-2100 Copenhagen , Denmark – sequence: 9 givenname: Jesper orcidid: 0000-0003-1255-2868 surname: Bendix fullname: Bendix, Jesper organization: Department of Chemistry , University of Copenhagen , Universitetsparken 5 , DK-2100 Copenhagen , Denmark – sequence: 10 givenname: Mauro orcidid: 0000-0001-5649-0449 surname: Perfetti fullname: Perfetti, Mauro organization: Department of Chemistry , University of Copenhagen , Universitetsparken 5 , DK-2100 Copenhagen , Denmark |
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| Snippet | In this paper, we experimentally study and model the electron donating character of an axial diamagnetic Pd
ion in four metalloligated lanthanide complexes of... In this paper, we experimentally study and model the electron donating character of an axial diamagnetic Pd2+ ion in four metalloligated lanthanide complexes... |
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| Title | Importance of Axial Symmetry in Elucidating Lanthanide-Transition Metal Interactions |
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