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发布时间：2019-03-13

论文类型：期刊论文

发表时间：2018-12-01

发表刊物：CRYSTAL GROWTH & DESIGN

收录刊物：Scopus、SCIE

卷号：18

期号：12

页面范围：7335-7342

ISSN号：1528-7483

关键字：Display devices; Dysprosium compounds; Magnetocaloric effects; Magnets; Samarium compounds; Sulfur compounds; Temperature; Terbium compounds, Cluster-based; Heterometallics; Low temperatures; Magnetic refrigerants; Potential materials; Single molecular magnets; Single-molecule magnet; Spintronic device, Iodine compounds

摘要：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.