Journal article

Tuning the Ferrotoroidic Coupling and Magnetic Hysteresis in Double-Triangle Complexes {(Dy3MDy3)-Dy-III} via the M-III-linker

Jared M Ashtree, Ivana Borilovi, Kuduva R Vignesh, Abinash Swain, Sarah H Hamilton, Yasmin L Whyatt, Sophie L Benjamin, Wasinee Phonsri, Craig M Forsyth, Wolfgang Wernsdorfer, Alessandro Soncini, Gopalan Rajaraman, Stuart K Langley, Keith S Murray

European Journal of Inorganic Chemistry | WILEY-V C H VERLAG GMBH | Published : 2020

Abstract

We present the syntheses, structures, magnetic data and theoretical analyses for two families of heptanuclear clusters, wherein two staggered dysprosium(III) triangles are linked by various M(III) d-/p-block ions. The families differ in the counter-anion and are of formulae [DyIII6MIII(OH)8(o-tol)12(MeOH)5(NO3)] ⋅ 4MeOH and [DyIII6MIII(OH)8(o-tol)12(MeOH)6]Cl ⋅ 6MeOH (M=Cr, Mn, Fe, Co, Al; o-tol=o-toluate). We find that variation of the central metal ion M is crucial in tuning the toroidal moments on the triangular units, with diamagnetic M linking ions enhancing the ferrotoroidic coupling. By detailed simulation and analysis of various magnetic measurements, including sub-kelvin microSquid ..

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University of Melbourne Researchers

Grants

Awarded by Australian Research Council Future Fellowship


Awarded by Australian Research Council


Awarded by SERB, India


Funding Acknowledgements

JMA acknowledges an Australian Government Research Training Program Scholarship. KRV thanks IIT Bombay for a Research Associate position. AS acknowledges an Australian Research Council Future Fellowship (FT180100519). KSM and AS acknowledge an Australian Research Council Discovery grant (DP170100034). GR would like to thank SERB, India (CRG/2018/000430) for funding.