Molecular coolers: The case for [CuII5GdIII4]

Molecular coolers: The case for [CuII5GdIII4]
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DOI:
10.1039/c1sc00038a
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发表时间:
2011-01-01
期刊:
影响因子:
8.4
通讯作者:
Murray, Keith S.
Murray, Keith S.
中科院分区:
化学1区
文献类型:
--
作者:
Langley, Stuart K.;Chilton, Nicholas F.;Murray, Keith S.

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在3d/4f化学中使用三乙醇胺(teaH(3))产生九核簇合物[(Cu5Gd4O2)-Gd-II-O-III(OMe)(4)(teaH)(4)(O2 CC(CH 3)(3))(2)(NO3)(4)]中心点2 MeOH中心点2 Et(2)O(1中心点2 MeOH中心点2 Et(2)O),其分子结构包括一系列顶点和面共享的{(GdCu 3 II)-Cu-III}四面体。磁性研究揭示了大量的自旋状态填充,即使在最低的温度调查。与高磁各向同性相结合,这使得1成为低温应用的优秀磁制冷剂。
The use of triethanolamine (teaH(3)) in 3d/4f chemistry produces the enneanuclear cluster compound [(Cu5Gd4O2)-Gd-II-O-III(OMe)(4)(teaH)(4)(O2CC(CH3)(3))(2)(NO3)(4)]center dot 2MeOH center dot 2Et(2)O(1 center dot 2MeOH center dot 2Et(2)O) whose molecular structure comprises a series of vertex-and face-sharing {(GdCu3II)-Cu-III} tetrahedra. Magnetic studies reveal a large number of spin states populated even at the lowest temperatures investigated. Combined with the high magnetic isotropy, this enables 1 to be an excellent magnetic refrigerant for low temperature applications.