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Photochemically Tuned Magnetic Properties in an Erbium(III)-Based Easy-Plane Single-Molecule Magnet

Photochemically Tuned Magnetic Properties in an Erbium(III)-Based Easy-Plane Single-Molecule Magnet

Jing Li, Ming Kong, Lei Yin, Jing Zhang, Fei Yu, Zhong-Wen Ouyang, Zhenxing Wang, Yi-Quan Zhang, You Song

Inorg Chem. 2019 Nov 4;58(21):14440-14448.

PMID: 31626540

Abstract:

The magnetic properties of single-molecule magnets can be controlled by external conditions such as light, pressure, and temperature. Among these conditions, photochemical control is the best approach due to the accessibility and rapid conduction of light. In this work, an Er(III)-based complex with photoactive ligand bpe, [Er(nat)3·MeOH·bpe] (1, bpe = 1,2-bis(2-pyridyl)ethylene, nat = 4,4,4-trifluoro-1-(2-naphthyl)-1,3-butanedione), was synthesized. The auxiliary ligand nat and cyclized ligand bpe stacked reasonably in the crystal structure. Two molecules of 1 experienced the [2, 2]-cycloaddition reaction under the UV irradiation in the solid state and [{Er(nat)3MeOH}2(tpcb)] (2, tpcb = tetrakis(4-pyridyl)cyclobutane) was produced. The slight change in the structure around Er(III) ions leads to the different magnetic properties, which illustrates the photochemical control of the magnetic properties of single-molecule magnets.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP893334	4,4,4-Trifluoro-1-(2-naphthyl)-1,3-butanedione		893-33-4	Price

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