Structures and magnetic refrigeration properties of three Gd2 compounds

被引：9
作者：
Niu, Hong-Jun [1 ]
Wang, Li-Hui [1 ]
Yang, Guan-E [2 ]
Wang, Xiao-Xiao [3 ]
机构：
[1] Tianjin Modern Vocat Technol Coll, Tianjin 300350, Peoples R China
[2] Shanxi Med Univ, Sch Pharm, Taiyuan 030001, Shanxi, Peoples R China
[3] Tianjin Polytech Univ, Sch Text, Tianjin 300387, Peoples R China
来源：
INORGANICA CHIMICA ACTA | 2019年 / 489卷
关键词：
Gd-2; compounds; Structures; Mixed ligands approach; Magnetic property; Magnetic refrigeration; LANTHANIDE(III) DINUCLEAR COMPLEXES; ORGANIC FRAMEWORKS; MOLECULE; BEHAVIOR; CLUSTERS; LUMINESCENCE; RELAXATION; SERIES; WHEEL; LN;
D O I：
10.1016/j.ica.2019.02.018
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Three new Gd-2 compounds, namely [Gd-2(dbm)(3)(L1)(2)CH3O]center dot 2.5CH(3)OH (1), [Gd-2(tmhd)(2)(L2)(2)(CH3O)(2)] (2) and [Gd-2(acac)(2)(L3)(2)(CH3O)(2)] (3) (Hdbm = 1,3-dip henyl-1,3-propanedione, Htmhd = 2,2,6,6-tetramethyl-3,5-heptanedione and Hacac = acetylacetone), have been synthesized via a mixed ligands approach and structurally characterized. Magnetic studies reveal that 1-3 display cryogenic magnetic refrigeration properties (- Delta S-m = 19.13 J kg(-1) K-1 for Delta H = 7 T at 2.0 K for 1, -Delta S-m = 21.06 J kg(-1) K-1 for Delta H = 7 T at 2.0 K for 2 and -Delta S-m = 25.73 J kg(-1) K-1 for Delta H = 7 T at 2.0 K for 3).
引用
收藏
页码：155 / 159
页数：5
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