Air-stable Dy(III)-macrocycle enantiomers : from chiral to polar space group
Zhu, Zhenhua; Zhao, Chen; Zhou, Quan; Liu, Shuting; Li, Xiao-Lei; Mansikkamäki, Akseli (2022-12-07)
CCS Chem.2022, 4, 3762–3771, https://doi.org/10.31635/ccschem.022.202101604
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https://creativecommons.org/licenses/by-nc/3.0/
https://urn.fi/URN:NBN:fi-fe2023061254193
Tiivistelmä
Abstract
Magnetoelectric (ME) multiferroic materials have unique advantages in low-power and high-density information storage, because they can simultaneously display ferroelectricity and ferromagnetism. However, research on how to construct air-stable high-performance ME single-molecule magnets (SMMs) is nonexistent. Herein, by introducing homochirality while reducing molecular symmetry, two double-decker Dy(III) enantiomers adopting the polar space group P2₁ and exhibiting excellent thermal stability were obtained. They displayed zero field SMM behavior with an anisotropy barrier (Ueff) of ca. 100 cm⁻¹. This work establishes a rational chemical design strategy for crystallizing SMMs in polar space groups and elucidates the direction for future research, that is, engineering small-size high-performance SMMs.
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