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Issue 46, 2018
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Antiferromagnetism in two-dimensional polyradical nanosheets

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Abstract

Two-dimensional (2D) organic magnetic materials have great value for research and applications in spintronics. However, unlike the diverse inorganic materials, finding 2D organic magnetic materials is still a major challenge. In this work, freestanding 2D organic magnetic polyradical (OMP) nanosheets were successfully synthesized using the polymerization of tris(2,3,5,6-tetrachloro-4-ethynylphenyl)methyl radicals at a liquid/liquid interface. The OMP obtained has a 2D sheet-like morphology and possesses triarylmethyl radicals after polymerization, which can act as spin centers. With the magnetic exchange coupling between radicals, the OMP shows an antiferromagnetic behavior with a Néel temperature of 42.5 K. Besides the OMP, this discovery also provides a route for synthesis of other potential antiferromagnetic 2D organic materials, which can act as essential building blocks in 2D organic spintronic devices.

Graphical abstract: Antiferromagnetism in two-dimensional polyradical nanosheets

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Article information


Submitted
04 Sep 2018
Accepted
23 Oct 2018
First published
26 Oct 2018

Polym. Chem., 2018,9, 5499-5503
Article type
Paper

Antiferromagnetism in two-dimensional polyradical nanosheets

Y. Yang, C. Liu, X. Xu, Z. Meng, W. Tong, Z. Ma, C. Zhou, Y. Sun and Z. Sheng, Polym. Chem., 2018, 9, 5499
DOI: 10.1039/C8PY01287C

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