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Humidity‐Sensitive Magnet Composed of a Cyano‐Bridged Co II –Nb IV Dimetallic Assembly
Author(s) -
Imoto Kenta,
Takahashi Daisuke,
Tsunobuchi Yoshihide,
Kosaka Wataru,
Arai Michio,
Tokoro Hiroko,
Ohkoshi Shinichi
Publication year - 2010
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201000720
Subject(s) - chemistry , magnet , humidity , desorption , ferromagnetism , antiferromagnetism , adsorption , cobalt , dysprosium , molecule , nanoporous , metal , inorganic chemistry , condensed matter physics , organic chemistry , physics , quantum mechanics , thermodynamics
Nanoporous magnetic materials composed of metal‐assembled complexes are expected to exhibit chemical sensitivity. In this work, we observed a humidity‐induced reversible change between ferromagnetism and antiferromagnetism in a new type of a cobalt octacyanoniobate based magnet in the high‐humidity region. This humidity response is caused by the adsorption and desorption of non‐coordinated water (so‐called zeolitic water) molecules in the interstitial site. Such a phenomenon is achieved by the structural flexibility of an octacyanometalate‐based magnet.