In:
European Journal of Inorganic Chemistry, Wiley, Vol. 2021, No. 5 ( 2021-02-05), p. 435-444
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 [Dy III 6 M III (OH) 8 ( o ‐tol) 12 (MeOH) 5 (NO 3 )] ⋅ 4MeOH and [Dy III 6 M III (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 hysteresis loops, we identified the specific signature of the M linking ions’ modulation of toroidal properties, including the mechanism whereby anisotropic, paramagnetic M ions lead to hysteresis profiles with larger remnant magnetisations and broader coercive fields.
Type of Medium:
Online Resource
ISSN:
1434-1948
,
1099-0682
DOI:
10.1002/ejic.v2021.5
DOI:
10.1002/ejic.202001082
Language:
English
Publisher:
Wiley
Publication Date:
2021
detail.hit.zdb_id:
1475009-0
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