Heterometallic Hexanuclear [Ln4Cr2] Cluster-Based Three-Dimensional Sulfate Frameworks as a Magnetic Refrigerant and Single Molecular Magnet
Heterometallic Hexanuclear [Ln4Cr2] Cluster-Based Three-Dimensional Sulfate Frameworks as a Magnetic Refrigerant and Single Molecular Magnet
复制标题
异金属六核[Ln4Cr2]簇基三维硫酸盐骨架作为磁性制冷剂和单分子磁体
DOI：
10.1021/acs.cgd.8b00966
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发表时间：
2018-12-01
影响因子：
3.8
通讯作者：
Zhai, Bin
中科院分区：
文献类型：
--
作者：
Li, Zhong-Yi;Zhang, Jian-Jun;Zhai, Bin
得到了三种基于异质金属3d-4f簇的三维硫酸盐骨架[Ln(4)Cr(2)(mu(4)-O)(2)(mu(3)-OH)(4)(H2O)(9)(SO4)(5)]中心点3H(2)O (Ln = Gd/Tb/Dy)]。它们由六核[Ln(4)Cr(2)]簇和硫酸盐桥组成，呈现出6连接的pcu拓扑网络。基于[Gd4Cr2]的化合物显示出- δ S-m = 38.33 J kg(-1) K-1的大磁热效应，使其在低温下有希望成为磁性冷却器，而含有Tb和dy的化合物显示出有趣的单分子磁性行为，表明它们是制造自旋电子器件的潜在材料。
Three heterometallic 3d-4f cluster-based, three-dimensional sulfate frameworks, [Ln(4)Cr(2)(mu(4)-O)(2)(mu(3)-OH)(4)(H2O)(9)(SO4)(5)]center dot 3H(2)O (Ln = Gd/Tb/Dy), were obtained. They are built from the hexanuclear [Ln(4)Cr(2)] cluster and sulfate bridge, showing a 6-connected pcu topology network. The [Gd4Cr2]-based compound displays a large magnetocaloric effect of -Delta S-m = 38.33 J kg(-1) K-1, making it a hopeful magnetic cooler at low temperature, while the Tb- and Dy-containing compounds display interesting single molecule magnet behavior, indicating that they are potential materials to make spintronic devices.