Subcomponent self-assembly of rare-earth single-molecule magnets

Victoria E. Campbell; Régis Guillot; Eric Riviere; Pierre Thomas Brun; Wolfgang Wernsdorfer; Talal Mallah

doi:10.1021/ic400098c

Subcomponent self-assembly of rare-earth single-molecule magnets

Victoria E. Campbell, Régis Guillot, Eric Riviere, Pierre Thomas Brun, Wolfgang Wernsdorfer, Talal Mallah

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

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Abstract

A family of lanthanide complexes has been synthesized by the subcomponent self-assembly methodology. Molecular architectures, which were stable in solution and under ambient conditions, were designed by the in situ formation of ligands around lanthanide ion templates. Magnetic studies indicated that, despite the low C₂ symmetry, 1 and 2 display single molecule magnet (SMM) behavior, with 1 exhibiting an effective energy barrier of the relaxation of the magnetization U_eff/k_B = 50 K and the pre-exponential factor τ_o = 6.80 × 10^-7 s. Step-like features in the hysteresis loops indicate the presence of quantum tunneling of the magnetization (QTM).

Original language	English (US)
Pages (from-to)	5194-5200
Number of pages	7
Journal	Inorganic Chemistry
Volume	52
Issue number	9
DOIs	https://doi.org/10.1021/ic400098c
State	Published - May 6 2013
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry
Inorganic Chemistry

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10.1021/ic400098c

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abstract = "A family of lanthanide complexes has been synthesized by the subcomponent self-assembly methodology. Molecular architectures, which were stable in solution and under ambient conditions, were designed by the in situ formation of ligands around lanthanide ion templates. Magnetic studies indicated that, despite the low C2 symmetry, 1 and 2 display single molecule magnet (SMM) behavior, with 1 exhibiting an effective energy barrier of the relaxation of the magnetization Ueff/kB = 50 K and the pre-exponential factor τo = 6.80 × 10-7 s. Step-like features in the hysteresis loops indicate the presence of quantum tunneling of the magnetization (QTM).",

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AU - Campbell, Victoria E.

AU - Guillot, Régis

AU - Riviere, Eric

AU - Brun, Pierre Thomas

AU - Wernsdorfer, Wolfgang

AU - Mallah, Talal

PY - 2013/5/6

Y1 - 2013/5/6

N2 - A family of lanthanide complexes has been synthesized by the subcomponent self-assembly methodology. Molecular architectures, which were stable in solution and under ambient conditions, were designed by the in situ formation of ligands around lanthanide ion templates. Magnetic studies indicated that, despite the low C2 symmetry, 1 and 2 display single molecule magnet (SMM) behavior, with 1 exhibiting an effective energy barrier of the relaxation of the magnetization Ueff/kB = 50 K and the pre-exponential factor τo = 6.80 × 10-7 s. Step-like features in the hysteresis loops indicate the presence of quantum tunneling of the magnetization (QTM).

AB - A family of lanthanide complexes has been synthesized by the subcomponent self-assembly methodology. Molecular architectures, which were stable in solution and under ambient conditions, were designed by the in situ formation of ligands around lanthanide ion templates. Magnetic studies indicated that, despite the low C2 symmetry, 1 and 2 display single molecule magnet (SMM) behavior, with 1 exhibiting an effective energy barrier of the relaxation of the magnetization Ueff/kB = 50 K and the pre-exponential factor τo = 6.80 × 10-7 s. Step-like features in the hysteresis loops indicate the presence of quantum tunneling of the magnetization (QTM).

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Subcomponent self-assembly of rare-earth single-molecule magnets

Abstract

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