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Mn II –Gd III Phosphonate Cages with a Large Magnetocaloric Effect
Author(s) -
Zheng YanZhen,
Pineda Eufemio Moreno,
Helliwell Madeleine,
Winpenny Richard E. P.
Publication year - 2012
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.201200152
Subject(s) - magnetic refrigeration , phosphonate , manganese , antiferromagnetism , lanthanide , crystallography , entropy (arrow of time) , chemistry , materials science , condensed matter physics , physics , thermodynamics , magnetization , organic chemistry , quantum mechanics , ion , magnetic field
Cool cages! The use of phosphonates has led to formation of a family of manganese(II)–lanthanide(III) heterometallic cages with structurally beautiful cores (see figure). Magnetic studies show antiferromagnetic interactions within the manganese centers and huge entropy change in the {Mn 4 Gd 6 } complex, which, in principle, can be used for ultralow temperature cooling.