Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 20, Issue 11, Pages 3029-3035Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201304423
Keywords
coordination polymers; glycolates; magnetic properties; magnetocaloric effect; manganese
Categories
Funding
- 973 Project [2012CB821704, 2014CB845602]
- NSFC [21371183, 91122032, 21121061]
- NSF of Guangdong [S2013020013002]
- Program for Changjiang Scholars and Innovative Research Team in University of China
- Czech Research Infrastructures [LM2011025]
- [APVV-0132-11]
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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.
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