2022
DOI: 10.1039/d2ce00315e
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Wheel-like Gd42 polynuclear complexes with significant magnetocaloric effect

Abstract: Two novel wheel-like lanthanide nanoclusters with 42 nuclearity [Ln42L14(OH)28(OAc)84] (abbreviated as Ln42, 1-Gd; 2-Dy, HL=3-methoxysalicylaldehyde O-vanillin) were structurally and magnetically characterized. The Ln42 species were constructed by O-vanillin and lanthanide...

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Cited by 7 publications
(4 citation statements)
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“…Magnetocaloric materials are generally characterized by parameters like maximum magnetic entropy change (Δ S M ) and adiabatic temperature change (Δ T ad ). 6 The volume change of materials is almost negligible, originating from no phase transition and the secondary phase transformation. Thus the total entropy change (Δ S ) can be replaced by the magnetic entropy change:Δ S ( T , H ) ≈ Δ S M ( T , H )…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…Magnetocaloric materials are generally characterized by parameters like maximum magnetic entropy change (Δ S M ) and adiabatic temperature change (Δ T ad ). 6 The volume change of materials is almost negligible, originating from no phase transition and the secondary phase transformation. Thus the total entropy change (Δ S ) can be replaced by the magnetic entropy change:Δ S ( T , H ) ≈ Δ S M ( T , H )…”
Section: Resultsmentioning
confidence: 99%
“…2–5 The magnetocaloric effect (MCE) is the core of magnetic refrigeration technology. 6 The definition of MCE was reported early in 1881. 7 The temperature of iron is enhanced by the applied magnetic field, but it decreases when the magnetic field is removed.…”
Section: Introductionmentioning
confidence: 99%
“…This allure stems from the small magnetic anisotropy of Gd(III) ions, coupled with their substantial ground state spins (7 unpaired electrons within the 4f electron shell) and low spin excited states. While substantial strides have been taken in the design and fabrication of high-nuclearity Gd(III) cluster materials with massive MCE [11][12][13][14][15][16][17][18][19][20] , challenges persist. These include limited magnetic entropy variation and reduced thermal conductivity at low magnetic elds, impeding practical applications.…”
Section: Introductionmentioning
confidence: 99%
“…As well known, the performances of these 3d-4f SMMs are closely correlated with their structures including the coordination geometry of single lanthanide ion which tunes the anisotropy of single lanthanide ion, as well as the topological arrangement of metal ions in the cluster which adjusts the synergistic effect of metal ions and intermetallic interactions in the cluster. Ligands play an important role in obtaining expected aesthetic structures [29][30][31][32][33][34], which requires the appropriate selection of bridging groups for tuning intermetallic interactions, spacers between the bridging groups for further adjusting the intermetallic interactions through changing the intermetallic distances, and non-coordinating groups for controlling the growth of targeted clusters in dimensionalities.…”
Section: Introductionmentioning
confidence: 99%