Switching of the magnetocaloric effect of Mn(II) glycolate by water molecules.

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 6.9 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. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Citation

Yan-Cong Chen, Fu-Sheng Guo, Jun-Liang Liu, Ji-Dong Leng, Peter Vrábel, Martin Orendáč, Jan Prokleška, Vladimír Sechovský, Ming-Liang Tong. Switching of the magnetocaloric effect of Mn(II) glycolate by water molecules. Chemistry (Weinheim an der Bergstrasse, Germany). 2014 Mar 10;20(11):3029-35

PMID: 24532426

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