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Switching of the Magnetocaloric Effect of Mn II Glycolate by Water Molecules
Author(s) -
Chen YanCong,
Guo FuSheng,
Liu JunLiang,
Leng JiDong,
Vrábel Peter,
Orendáč Martin,
Prokleška Jan,
Sechovský Vladimír,
Tong MingLiang
Publication year - 2014
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201304423
Subject(s) - magnetic refrigeration , refrigerant , molecule , inductive coupling , coupling (piping) , phase (matter) , chemistry , crystallography , materials science , thermodynamics , magnetic field , physics , magnetization , organic chemistry , metallurgy , quantum mechanics , gas compressor
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 (H 2 O) 2 ] ( 2 ) can be reversibly switched by water molecules, which dramatically change the magnetocaloric effect (MCE) of Mn II glycolates from the maximum of 6.9 J kg −1 K −1 in 1 to 60.3 J kg −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.