Journal article
Approaching the 1000 K energy barrier in high coordinate lanthanide single-ion magnets: Increasing Ueff in the [Dy(Tp2-py)F] moiety with tetrahydrofuran
JR Thomas, MJ Giansiracusa, SA Sulway
Dalton Transactions | ROYAL SOC CHEMISTRY | Published : 2024
DOI: 10.1039/d4dt01194e
Abstract
Using the existing architecture of [Dy(Tp2-py)F]+ that supports a terminal Dy-F bond, the synthesis and isolation of [Dy(Tp2-py)F(THF)2](PF6) and its diamagnetic yttrium analogue have been achieved. Alternating current magnetic susceptibility studies show an increased effective energy barrier of Ueff = 661(6) cm−1 (951(8) K), the highest yet reported for a high coordinate (n > 8) lanthanide single-ion magnet.
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Awarded by University of New South Wales
Funding Acknowledgements
S. A. S and J. R. T. would like to thank UNSW for their funding through their Faculty Research Grant. M. J. G. would like to thank The University of Melbourne for a Melbourne Postdoctoral Fellowship. This research was supported by The University of Melbourne's Research Computing Services and the Petascale Campus Initiative. This work was performed in part at the Trace Analysis for Chemical, Earth and Environmental Sciences (TrACEES) Platform at the University of Melbourne. We acknowledge the Australian Research Council for an equipment grant (LE210100009). All authors would like to thank the Mark Wainwright Analytical Centre (MWAC) for the use of their instrumentation for the collection of single crystal X-ray diffraction for 1-THF and 2-THF, the NMR facility for NMR Data for 2-THF, and element analysis collected by the XRF laboratory. The authors would also like to thank ANSTO (PPMS, proposal number P13539).