Journal article
Modulation of Slow Magnetic Relaxation in Gd(III)-Tetrahalosemiquinonate Complexes
MA Dunstan, DS Brown, L Sorace, RA Mole, C Boskovic
Chemistry an Asian Journal | WILEY-V C H VERLAG GMBH | Published : 2022
Open access
Abstract
Incorporating lanthanoid(III)-radical magnetic exchange coupling is a possible route to improving the performance of lanthanoid (Ln) single-molecule magnets (SMMs), molecular materials that exhibit slow relaxation and low temperature quantum tunnelling of the magnetization. Complexes of Gd(III) can conveniently be used as model systems to study the Ln-radical exchange coupling, thanks to the absence of the orbital angular momentum that is present for many Ln(III) ions. Two new Gd(III)-radical compounds of formula [Gd(18-c-6)X4SQ(NO3)].I3 (18-c-6=18-crown-6, X4SQ⋅−=tetrahalo-1,2-semiquinonate, 1: X=Cl, 2: X=Br) have been synthesized, and the presence of the dioxolene ligand in its semiquinona..
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Grants
Awarded by Australian Government
Funding Acknowledgements
M. A. D. acknowledges financial support from AINSE Limited (AINSE Post-Graduate Research Award) and the Australian Government for a Research Training Program stipend. C.B., and R.A.M. thank the Australian Research Council for funding (DP170100034 and LE210100009). We acknowledge the support of the Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation and the Australian Government through the National Collaborative Research Infrastructure Strategy. L. S. acknowledges the financial support of the Italian Ministry of Education, University and Research (MIUR), for the economic contribution within the "Progetto Dipartimenti di Eccellenza 20182022" allocated to the Department of Chemistry "Ugo Schiff" (ref B96C1700020008). The authors would like to thank Dr Moya A. Hay and Dr Marcus J. Giansiracusa for helpful discussions. Open access publishing facilitated by The University of Melbourne, as part of the Wiley -The University of Melbourne agreement via the Council of Australian University Librarians.