Tricine-supported polyoxo(alkoxo)lanthanide cluster {Ln15} (Ln = Eu, Gd, Tb) with magnetic refrigerant and fluorescent properties

Peng-Fei Sun; Xiao-Nan Zhang; Cai-Hong Fan; Wei-Peng Chen; Yan-Zhen Zheng

doi:10.26599/POM.2023.9140026

Polyoxometalates (Jun 2023)

Tricine-supported polyoxo(alkoxo)lanthanide cluster {Ln15} (Ln = Eu, Gd, Tb) with magnetic refrigerant and fluorescent properties

Peng-Fei Sun,
Xiao-Nan Zhang,
Cai-Hong Fan,
Wei-Peng Chen,
Yan-Zhen Zheng

Affiliations

Peng-Fei Sun: Frontier Institute of Science and Technology, State Key Laboratory of Mechanical Behavior for Materials, MOE Key Laboratory for Nonequilibrium Synthesis of Condensed Matter, Xi’an Key Laboratory of Sustainable Energy and Materials Chemistry, School of Chemistry, Xi’an Jiaotong University, Xi’an 710054, China
Xiao-Nan Zhang: Frontier Institute of Science and Technology, State Key Laboratory of Mechanical Behavior for Materials, MOE Key Laboratory for Nonequilibrium Synthesis of Condensed Matter, Xi’an Key Laboratory of Sustainable Energy and Materials Chemistry, School of Chemistry, Xi’an Jiaotong University, Xi’an 710054, China
Cai-Hong Fan: Frontier Institute of Science and Technology, State Key Laboratory of Mechanical Behavior for Materials, MOE Key Laboratory for Nonequilibrium Synthesis of Condensed Matter, Xi’an Key Laboratory of Sustainable Energy and Materials Chemistry, School of Chemistry, Xi’an Jiaotong University, Xi’an 710054, China
Wei-Peng Chen: ORCiD; Frontier Institute of Science and Technology, State Key Laboratory of Mechanical Behavior for Materials, MOE Key Laboratory for Nonequilibrium Synthesis of Condensed Matter, Xi’an Key Laboratory of Sustainable Energy and Materials Chemistry, School of Chemistry, Xi’an Jiaotong University, Xi’an 710054, China
Yan-Zhen Zheng: ORCiD; Frontier Institute of Science and Technology, State Key Laboratory of Mechanical Behavior for Materials, MOE Key Laboratory for Nonequilibrium Synthesis of Condensed Matter, Xi’an Key Laboratory of Sustainable Energy and Materials Chemistry, School of Chemistry, Xi’an Jiaotong University, Xi’an 710054, China

DOI: https://doi.org/10.26599/POM.2023.9140026
Journal volume & issue: Vol. 2, no. 2
pp. 9140026 – 9140026

Abstract

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A family of polyoxo(alkoxo)lanthanide cluster {Ln15} (Ln = Eu (1), Gd (2), Tb (3)) was successfully isolated via a simple hydrolysis reaction of lanthanide metal ions in the presence of tricine ligands. X-ray diffraction analyses revealed that {Ln15} displayed a wheel-like structure with a µ5-chloride anion as a template. Interestingly, each analog showed distinctive functions based on the different Ln(III) ions. Complexes 1 and 3 in the solid state emitted the characteristic fluorescence of Eu(III) or Tb(III). The fluorescence lifetimes of the 5D0 excited state for 1 and the 5D4 excited state for 3 were tested, and the values were 890 and 250 μs, respectively. Meanwhile, gadolinium analog 2 exhibited a magneto-caloric effect at ultralow temperatures with a maximum −ΔSm value of 29.9 J·kg−1·K−1 at 3 K and 7 T.

Published in Polyoxometalates

ISSN: 2957-9821 (Print); 2957-9503 (Online)
Publisher: Tsinghua University Press
Country of publisher: China
LCC subjects: Science: Chemistry: Inorganic chemistry
Website: https://www.sciopen.com/journal/2957-9821

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