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Your search keyword '"Quan, Wen"' showing total 7 results
Start Over Author "Quan, Wen" Journal chemical communications
7 results on '"Quan, Wen"'

6. Two 3d–4f nanomagnets formed via a two-step in situ reaction of picolinaldehyde

Author

Quan-Wen Li, Ji-Dong Leng, Daniel Aravena, Ming-Liang Tong, Wei-Quan Lin, Eliseo Ruiz, Silvia Gómez-Coca, Yan-Cong Chen, and Jun-Liang Liu

Subjects
Magnetic moment, Gadolinium, Metals and Alloys, chemistry.chemical_element, General Chemistry, Nanomagnet, Catalysis, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Adduct, Crystallography, chemistry, Magnet, X-ray crystallography, Materials Chemistry, Ceramics and Composites, Dysprosium, Magnetic refrigeration
Abstract

Two 3d-4f nanomagnets, [Dy(III)2Cu(II)7] (1) and [Gd(III)6Cu(II)12] (2), are synthesized under a two-step in situ reaction of picolinaldehyde. Not only the final adduct (hemiacetal), but also the intermediate (gem-diol) are "visualized" by X-ray single crystal diffraction. The Dy complex behaves as a single-molecule magnet, while the Gd complex exhibits a significant magnetocaloric effect. Theoretical calculations are employed to obtain the orientation of the magnetic moments and the magnetic exchange.

Published
2013
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7. “Half-sandwich” YbIII single-ion magnets with metallacrowns.

Author

Li, Quan-Wen, Liu, Jun-Liang, Jia, Jian-Hua, Chen, Yan-Cong, Liu, Jiang, Wang, Long-Fei, and Tong, Ming-Liang

Subjects
*YTTERBIUM, *RARE earth metals, *MAGNETS, *METALLACROWNS, *MAGNETIC anisotropy, *MAGNETOOPTICS
Abstract

The first “half-sandwich” YbIII single-ion magnets (SIMs) based on [12-MCZn(ii)-4] are reported, in which the central ytterbium ion is coordinated by YbO8 geometry in D4d symmetry. The anisotropic barrier is extracted from the analysis of static, dynamic magnetism and emission spectrum offering an insight into the magneto-optical correlation. [ABSTRACT FROM AUTHOR]

Published
2015
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