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Solvent Responsive Magnetic Dynamics of a Dinuclear Dysprosium Single‐Molecule Magnet
Author(s) -
Ren Min,
Bao SongSong,
Hoshino Norihisa,
Akutagawa Tomoyuki,
Wang Bingwu,
Ding YuChen,
Wei Shiqiang,
Zheng LiMin
Publication year - 2013
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.201300497
Subject(s) - dysprosium , chemistry , solvent , magnetic relaxation , molecule , single molecule magnet , magnetization , dimer , crystallography , magnet , relaxation (psychology) , desorption , phosphonate , inorganic chemistry , magnetic field , organic chemistry , adsorption , social psychology , psychology , physics , quantum mechanics
A new dysprosium(III) phosphonate dimer {Dy(notpH 4 )(NO 3 )(H 2 O)} 2 ⋅ 8 H 2 O ( 1 ) [notpH 6 =1,4,7‐triazacyclononane‐1,4,7‐triyl‐tris(methylenephosphonic acid)] that contains two equivalent Dy III ions with a three‐capped trigonal prism environment is reported. Complex 1 can be transformed into {Dy(notpH 4 )(NO 3 )(H 2 O)} 2 ( 2 ) in a reversible manner by desorption and absorption of solvent water at ambient temperature. This process is accompanied by a large dielectric response. Magnetic studies reveal that both 1 and 2 show thermally activated magnetization relaxation as expected for single‐molecule magnets. Moreover, the magnetic dynamics of the two compounds can be manipulated by controlling the number of solvent molecules at room temperature.