Switching of the Magnetocaloric Effect of MnII Glycolate by Water Molecules

被引：62
作者：
Chen, Yan-Cong [1 ]
Guo, Fu-Sheng [1 ]
Liu, Jun-Liang [1 ]
Leng, Ji-Dong [1 ]
Vrabel, Peter [2 ,3 ]
Orendac, Martin [2 ,3 ]
Prokleska, Jan [4 ]
Sechovsky, Vladimir [4 ]
Tong, Ming-Liang [1 ]
机构：
[1] Sun Yat Sen Univ, Sch Chem & Chem Engn, State Key Lab Optoelect Mat & Technol, Key Lab Bioinorgan & Synthet Chem,Minist Educ, Guangzhou 510275, Guangdong, Peoples R China
[2] Safarik Univ, Ctr Low Temp Phys, Fac Sci, Kosice 04154, Slovakia
[3] SAS, Inst Expt Phys, Kosice 04154, Slovakia
[4] Charles Univ Prague, Dept Condensed Matter Phys, Fac Math & Phys, CZ-12116 Prague 2, Czech Republic
来源：
CHEMISTRY-A EUROPEAN JOURNAL | 2014年 / 20卷 / 11期
关键词：
coordination polymers; glycolates; magnetic properties; magnetocaloric effect; manganese; ENHANCED MAGNETIC COOLERS; METAL-ORGANIC FRAMEWORK; LOW-TEMPERATURE; CLUSTERS; REFRIGERATION; GD; LN; PICOLINALDEHYDE; NANOMAGNETS; RELAXATION;
D O I：
10.1002/chem.201304423
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The transformation of Mn-II glycolates (glc) between the three-dimensional coordination polymer [Mn(glc)(2)](n) (1) and discrete mononuclear phase [Mn(glc)(2)(H2O)(2)] (2) can be reversibly switched by water molecules, which dramatically change the magnetocaloric effect (MCE) of Mn-II glycolates from the maximum of 6.9Jkg(-1)K(-1) in 1 to 60.3Jkg(-1)K(-1) in 2. This case example reveals that the effect of magnetic coupling on MCE plays a dominant role over that of other factors such as magnetic density for 3d-type magnetic refrigerants.
引用
收藏
页码：3029 / 3035
页数：7
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