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MOE Key Laboratory of Bioinorganic and Synthetic Chemistry/State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
Centre of Low Temperature Physics Faculty of Science, P.J. Šafárik University and Institute of Experimental Physics SAS, Park Angelinum 9, 041 54 Košice, Slovakia
Chem. Commun., 2012,48, 12219-12221
15 Oct 2012,
02 Nov 2012
First published online
05 Nov 2012
The large cryogenic magnetocaloric effect of a 3D oxydiacetate-bridged gadolinium–manganese MOF material, [Mn(H2O)6][MnGd(oda)3]2·6H2O (1), was evaluated by magnetization and heat capacity measurements. A maximum −ΔSm of 50.1 J kg−1 K−1 for ΔH = 70 kG along with significant entropy change at lower field was found on account of the weak MnGd ferromagnetic interactions and the small molecular mass. This suggests that 1 could be considered as a potential coolant for liquid helium temperature applications.
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