Abstract
A new dysprosium(III) phosphonate dimer {Dy(notpH4)(NO 3)(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. Under control! The magnetic dynamics of a dinuclear single-molecule magnet {Dy(notpH4)(NO3)(H 2O)}2× 8 H2O (see figure; notpH 6=1,4,7-triazacyclononane-1,4,7-triyltris(methylenephosphonic acid)) can be manipulated by controlling the number of solvent molecules at room temperature.
Original language | English |
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Pages (from-to) | 9619-9628 |
Number of pages | 10 |
Journal | Chemistry - A European Journal |
Volume | 19 |
Issue number | 29 |
DOIs | |
Publication status | Published - 2013 Jul 15 |
Keywords
- dysprosium
- magnetic properties
- phosphonates
- single-molecule magnets
- solvent effects
ASJC Scopus subject areas
- Catalysis
- Organic Chemistry