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Influencing the properties of dysprosium single-molecule magnets with phosphine, phosphide and phosphinidene ligands
journal contribution
posted on 2023-06-09, 14:40 authored by Thomas Pugh, Floriana Tuna, Liviu Ungur, David Collison, Eric J L McInnes, Liviu Chibotaru, Richard LayfieldRichard LayfieldSingle-molecule magnets are a type of coordination compound that can retain magnetic information at low temperatures. Single-molecule magnets based on lanthanides have accounted for many important advances, including systems with very large energy barriers to reversal of the magnetization, and a di-terbium complex that displays magnetic hysteresis up to 14 K and shows strong coercivity. Ligand design is crucial for the development of new single-molecule magnets: organometallic chemistry presents possibilities for using unconventional ligands, particularly those with soft donor groups. Here we report dysprosium single-molecule magnets with neutral and anionic phosphorus donor ligands, and show that their properties change dramatically when varying the ligand from phosphine to phosphide to phosphinidene. A phosphide-ligated, trimetallic dysprosium single-molecule magnet relaxes via the second-excited Kramers’ doublet, and, when doped into a diamagnetic matrix at the single-ion level, produces a large energy barrier of 256 cm1 and magnetic hysteresis up to 4.4 K.
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- Published
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- Published version
Journal
Nature CommunicationsISSN
2041-1723Publisher
Nature Publishing GroupExternal DOI
Issue
7492Volume
6Page range
1-8Department affiliated with
- Chemistry Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2018-08-22First Open Access (FOA) Date
2018-08-22First Compliant Deposit (FCD) Date
2018-08-20Usage metrics
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