High-nuclearity 3d-4f clusters as enhanced magnetic coolers and molecular magnets

Jun Bo Peng; Qian Chong Zhang; Xiang Jian Kong; Yan Zhen Zheng; Yan Ping Ren; La Sheng Long; Rong Bin Huang; Lan Sun Zheng; Zhiping Zheng

doi:10.1021/ja209752z

High-nuclearity 3d-4f clusters as enhanced magnetic coolers and molecular magnets

Jun Bo Peng, Qian Chong Zhang, Xiang Jian Kong, Yan Zhen Zheng, Yan Ping Ren, La Sheng Long, Rong Bin Huang, Lan Sun Zheng, Zhiping Zheng

Research output: Contribution to journal › Article › peer-review

431 Scopus citations

Abstract

Four 52-metal-ion 3d-4f cluster complexes featuring a common core of Ln ₄₂M ₁₀ (Ln = Gd ³⁺, Dy ³⁺; M = Co ^2+/3+, Ni ²⁺) were obtained through self-assembly of the metal ions templated by mixed anions (ClO ₄ ^- and CO ₃ ^2-). Magnetic studies revealed that the Gd ₄₂Co ₁₀ and Gd ₄₂Ni ₁₀ clusters exhibit the largest magnetocaloric effect (MCE) among any known 3d-4f complexes. Replacement of Gd ³⁺ ions with anisotropic Dy ³⁺ ions caused significant changes in the magnetic behavior of the clusters; both Dy ₄₂Co ₁₀ and Dy ₄₂Ni ₁₀ displayed slow relaxation of the magnetization.

Original language	English (US)
Pages (from-to)	3314-3317
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	134
Issue number	7
DOIs	https://doi.org/10.1021/ja209752z
State	Published - Feb 22 2012
Externally published	Yes

ASJC Scopus subject areas

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

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title = "High-nuclearity 3d-4f clusters as enhanced magnetic coolers and molecular magnets",

abstract = "Four 52-metal-ion 3d-4f cluster complexes featuring a common core of Ln 42M 10 (Ln = Gd 3+, Dy 3+; M = Co 2+/3+, Ni 2+) were obtained through self-assembly of the metal ions templated by mixed anions (ClO 4 - and CO 3 2-). Magnetic studies revealed that the Gd 42Co 10 and Gd 42Ni 10 clusters exhibit the largest magnetocaloric effect (MCE) among any known 3d-4f complexes. Replacement of Gd 3+ ions with anisotropic Dy 3+ ions caused significant changes in the magnetic behavior of the clusters; both Dy 42Co 10 and Dy 42Ni 10 displayed slow relaxation of the magnetization.",

author = "Peng, {Jun Bo} and Zhang, {Qian Chong} and Kong, {Xiang Jian} and Zheng, {Yan Zhen} and Ren, {Yan Ping} and Long, {La Sheng} and Huang, {Rong Bin} and Zheng, {Lan Sun} and Zhiping Zheng",

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doi = "10.1021/ja209752z",

language = "English (US)",

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journal = "Journal of the American Chemical Society",

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T1 - High-nuclearity 3d-4f clusters as enhanced magnetic coolers and molecular magnets

AU - Peng, Jun Bo

AU - Zhang, Qian Chong

AU - Kong, Xiang Jian

AU - Zheng, Yan Zhen

AU - Ren, Yan Ping

AU - Long, La Sheng

AU - Huang, Rong Bin

AU - Zheng, Lan Sun

AU - Zheng, Zhiping

PY - 2012/2/22

Y1 - 2012/2/22

N2 - Four 52-metal-ion 3d-4f cluster complexes featuring a common core of Ln 42M 10 (Ln = Gd 3+, Dy 3+; M = Co 2+/3+, Ni 2+) were obtained through self-assembly of the metal ions templated by mixed anions (ClO 4 - and CO 3 2-). Magnetic studies revealed that the Gd 42Co 10 and Gd 42Ni 10 clusters exhibit the largest magnetocaloric effect (MCE) among any known 3d-4f complexes. Replacement of Gd 3+ ions with anisotropic Dy 3+ ions caused significant changes in the magnetic behavior of the clusters; both Dy 42Co 10 and Dy 42Ni 10 displayed slow relaxation of the magnetization.

AB - Four 52-metal-ion 3d-4f cluster complexes featuring a common core of Ln 42M 10 (Ln = Gd 3+, Dy 3+; M = Co 2+/3+, Ni 2+) were obtained through self-assembly of the metal ions templated by mixed anions (ClO 4 - and CO 3 2-). Magnetic studies revealed that the Gd 42Co 10 and Gd 42Ni 10 clusters exhibit the largest magnetocaloric effect (MCE) among any known 3d-4f complexes. Replacement of Gd 3+ ions with anisotropic Dy 3+ ions caused significant changes in the magnetic behavior of the clusters; both Dy 42Co 10 and Dy 42Ni 10 displayed slow relaxation of the magnetization.

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High-nuclearity 3d-4f clusters as enhanced magnetic coolers and molecular magnets

Abstract

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