High-Nuclearity 3d–4f Clusters as Enhanced Magnetic Coolers and Molecular Magnets
Journal of the American Chemical Society2012Vol. 134(7), pp. 3314–3317
Citations Over TimeTop 1% of 2012 papers
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
Abstract
Four 52-metal-ion 3d-4f cluster complexes featuring a common core of Ln(42)M(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(42)Co(10) and Gd(42)Ni(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(42)Co(10) and Dy(42)Ni(10) displayed slow relaxation of the magnetization.
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