Solvent Responsive Magnetic Dynamics of a Dinuclear Dysprosium Single‐Molecule Magnet |
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| Authors: | Min Ren Dr Song‐Song Bao Dr Norihisa Hoshino Prof Dr Tomoyuki Akutagawa Prof Dr Bingwu Wang Yu‐Chen Ding Prof Dr Shiqiang Wei Prof Dr Li‐Min Zheng |
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| Institution: | 1. Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructure, Nanjing University, Nanjing 210093 (P.?R. China);2. Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Sendai 980‐8577 (Japan);3. Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P.?R. China);4. National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029 (P.?R. China) |
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| Abstract: | A new dysprosium(III) phosphonate dimer {Dy(notpH4)(NO3)(H2O)}2 ? 8 H2O ( 1 ) notpH6=1,4,7‐triazacyclononane‐1,4,7‐triyl‐tris(methylenephosphonic acid)] that contains two equivalent DyIII ions with a three‐capped trigonal prism environment is reported. Complex 1 can be transformed into {Dy(notpH4)(NO3)(H2O)}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. |
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| Keywords: | dysprosium magnetic properties phosphonates single‐molecule magnets solvent effects |
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