Solvent responsive magnetic dynamics of a dinuclear dysprosium single-molecule magnet

Min Ren; Song Song Bao; Norihisa Hoshino; Tomoyuki Akutagawa; Bingwu Wang; Yu Chen Ding; Shiqiang Wei; Li Min Zheng

doi:10.1002/chem.201300497

Solvent responsive magnetic dynamics of a dinuclear dysprosium single-molecule magnet

Min Ren, Song Song Bao, Norihisa Hoshino, Tomoyuki Akutagawa, Bingwu Wang, Yu Chen Ding, Shiqiang Wei, Li Min Zheng

Research output: Contribution to journal › Article › peer-review

58 Citations (Scopus)

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 Dy^III 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
Pages (from-to)	9619-9628
Number of pages	10
Journal	Chemistry - A European Journal
Volume	19
Issue number	29
DOIs	https://doi.org/10.1002/chem.201300497
Publication status	Published - 2013 Jul 15

Keywords

dysprosium
magnetic properties
phosphonates
single-molecule magnets
solvent effects

ASJC Scopus subject areas

Catalysis
Organic Chemistry

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10.1002/chem.201300497

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title = "Solvent responsive magnetic dynamics of a dinuclear dysprosium single-molecule magnet",

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.",

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author = "Min Ren and Bao, {Song Song} and Norihisa Hoshino and Tomoyuki Akutagawa and Bingwu Wang and Ding, {Yu Chen} and Shiqiang Wei and Zheng, {Li Min}",

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AU - Ren, Min

AU - Bao, Song Song

AU - Hoshino, Norihisa

AU - Akutagawa, Tomoyuki

AU - Wang, Bingwu

AU - Ding, Yu Chen

AU - Wei, Shiqiang

AU - Zheng, Li Min

PY - 2013/7/15

Y1 - 2013/7/15

N2 - 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.

AB - 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.

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Solvent responsive magnetic dynamics of a dinuclear dysprosium single-molecule magnet

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