Hourglass-Shaped Homo- and Heteronuclear Nonanuclear Lanthanide Clusters: Structures, Magnetism, Photoluminescence, and Theoretical Analysis

Pandey, Priya; Chauhan, Deepanshu; Walawalkar, Mrinalini G.; Gupta, Sandeep K.; Meyer, Franc; Rajaraman, Gopalan; Murugavel, Ramaswamy

doi:10.1021/acs.inorgchem.4c00332

Inorg. Chem.

2024

DOI: 10.1021/acs.inorgchem.4c00332

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Hourglass-Shaped Homo- and Heteronuclear Nonanuclear Lanthanide Clusters: Structures, Magnetism, Photoluminescence, and Theoretical Analysis

Priya Pandey,

Deepanshu Chauhan,

Mrinalini G. Walawalkar

et al.

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Cited by 3 publications

References 84 publications

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Lanthanide‐Tetradentate Schiff Base‐PMMA Composite Films for Tunable White Light Emission

Sarkar,

Singh,

Adak

et al. 2024

Advanced Optical Materials

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Multicolor emissive Schiff base lanthanide Poly(methyl methylacrylate) [PMMA] composite films are fabricated for white light generation. Three isostructural lanthanides (III) complexes [EuIII2(L)2(NO3)2(dmf)2 (1), TbIII2(L)2(NO3)2(dmf)2 (2) and GdIII2(L)2(NO3)2(dmf)2 (3)] are synthesized, characterized from the ligand obtained by 1:1 condensation of salicylaldehyde and 2‐(2‐Aminoethoxy)ethanol, H2L. The photoluminescent studies revealed pure blue, green, and red color emissions from GdIIIL, TbIIIL, and EuIIIL complexes, although the central metal centers have identical dodecahedron geometry. Intensified ligand emission is attested for the blue emitter‐GdIIIL complex while the “antenna effect” is witnessed for green TbIIIL and red EuIIIL complexes. Co‐doping these multicolor luminescent emitters into the PMMA polymer the intensity of luminescence improved. A conscientious combination of red‐EuIIIL with green‐TbIIIL Lanthanide metal Schiff base complexes in a specified concentration, distinct white light is accomplished for the first time with Commission Internationale de I’Éclairage (CIE) values of 0.33, 0.30, very close to the ideal white emitter. The newly developed lanthanide‐Schiff base‐PMMA composite films are transparent and highly desired materials in optoelectronics, microscopy, and sensing.

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Lanthanide‐Tetradentate Schiff Base‐PMMA Composite Films for Tunable White Light Emission

Sarkar,

Singh,

Adak

et al. 2024

Advanced Optical Materials

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Sandglass-like Ln₉ Nanoclusters with Magnetocaloric Effect and Lanthanide-Centered Luminescence

Wang,

Sun

2024

Crystal Growth & Design

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It is a challenging work to construct high-nuclear lanthanide nanoclusters with desirable magnetocaloric effects. To this end, a series of Ln 9 nanoclusters with sandglass-like topological structures have been successfully synthesized under solvothermal conditions by using two different alcoholamine ligands and lanthanide (Ln III ) salts, with the molecular formulaIt is worth noting that both 1-Gd and 2-Gd exhibit intramolecular antiferromagnetic interactions and show typical magnetocaloric effect behavior. At a magnetic field strength of 7 T and a temperature of 3 K, the values of the −ΔS m max are 33.65 J kg −1 K −1 for 1-Gd and 25.22 J kg −1 K −1 for 2-Gd. In addition, 1-Eu, 1-Tb, 2-Eu, and 2-Tb exhibit the characteristic luminescence of Eu III and Tb III ions, respectively. For 1-Tb, tunable emission from green to red was achieved by adjusting the doping ratio of lanthanide ions to obtain heterometallic clusters Tb x Eu 9-x , offering the potential for high-fidelity optical barcode applications.

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Solvent-dependent Ln(iii) clusters assembled by immobilization of CO₂ in air: zero-field single-molecule magnets and magnetic refrigerant materials

Liu,

Hao,

et al. 2025

Dalton Trans.

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Hourglass-Shaped Homo- and Heteronuclear Nonanuclear Lanthanide Clusters: Structures, Magnetism, Photoluminescence, and Theoretical Analysis

Cited by 3 publications

References 84 publications

Lanthanide‐Tetradentate Schiff Base‐PMMA Composite Films for Tunable White Light Emission

Lanthanide‐Tetradentate Schiff Base‐PMMA Composite Films for Tunable White Light Emission

Sandglass-like Ln₉ Nanoclusters with Magnetocaloric Effect and Lanthanide-Centered Luminescence

Solvent-dependent Ln(iii) clusters assembled by immobilization of CO₂ in air: zero-field single-molecule magnets and magnetic refrigerant materials

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Hourglass-Shaped Homo- and Heteronuclear Nonanuclear Lanthanide Clusters: Structures, Magnetism, Photoluminescence, and Theoretical Analysis

Cited by 3 publications

References 84 publications

Lanthanide‐Tetradentate Schiff Base‐PMMA Composite Films for Tunable White Light Emission

Lanthanide‐Tetradentate Schiff Base‐PMMA Composite Films for Tunable White Light Emission

Sandglass-like Ln9 Nanoclusters with Magnetocaloric Effect and Lanthanide-Centered Luminescence

Solvent-dependent Ln(iii) clusters assembled by immobilization of CO2 in air: zero-field single-molecule magnets and magnetic refrigerant materials

Contact Info

Product

Resources

About

Sandglass-like Ln₉ Nanoclusters with Magnetocaloric Effect and Lanthanide-Centered Luminescence

Solvent-dependent Ln(iii) clusters assembled by immobilization of CO₂ in air: zero-field single-molecule magnets and magnetic refrigerant materials