Large Easy-Plane Magnetic Anisotropy in a Three-Coordinate Cobalt(II) Complex [Li(THF)4][Co(NPh2)3]

Yi Fei Deng; Zhenxing Wang; Zhong Wen Ouyang; Bing Yin; Zhiping Zheng; Yan Zhen Zheng

doi:10.1002/chem.201603238

Large Easy-Plane Magnetic Anisotropy in a Three-Coordinate Cobalt(II) Complex [Li(THF)₄][Co(NPh₂)₃]

Yi Fei Deng, Zhenxing Wang, Zhong Wen Ouyang, Bing Yin, Zhiping Zheng, Yan Zhen Zheng

Chemistry and Biochemistry

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

35 Scopus citations

Abstract

Magnetic anisotropy is the key element in the construction of single-ion magnets, a kind of nanomagnets for high-density information storage. This works describes an unusual large easy-plane magnetic anisotropy (with a zero-field splitting parameter D of +40.2 cm⁻¹), mainly arising from the second-order spin-orbit coupling effect in a trigonal-planar Co^IIcomplex [Li(THF)₄][Co(NPh₂)₃], revealed by combined studies of magnetism, high frequency/field electron paramagnetic resonance spectroscopy, and ab initio calculations. Meanwhile, the field-induced slow magnetic relaxation in this complex was mainly attributed to the Raman process.

Original language	English (US)
Pages (from-to)	14821-14825
Number of pages	5
Journal	Chemistry - A European Journal
Volume	22
Issue number	42
DOIs	https://doi.org/10.1002/chem.201603238
State	Published - Oct 10 2016

Keywords

ab initio calculations
cobalt(II)
easy-plane magnetic anisotropy
high frequency electron paramagnetic resonance
slow magnetic relaxation

ASJC Scopus subject areas

Catalysis
Organic Chemistry

Access to Document

10.1002/chem.201603238

Cite this

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title = "Large Easy-Plane Magnetic Anisotropy in a Three-Coordinate Cobalt(II) Complex [Li(THF)4][Co(NPh2)3]",

abstract = "Magnetic anisotropy is the key element in the construction of single-ion magnets, a kind of nanomagnets for high-density information storage. This works describes an unusual large easy-plane magnetic anisotropy (with a zero-field splitting parameter D of +40.2 cm−1), mainly arising from the second-order spin-orbit coupling effect in a trigonal-planar CoIIcomplex [Li(THF)4][Co(NPh2)3], revealed by combined studies of magnetism, high frequency/field electron paramagnetic resonance spectroscopy, and ab initio calculations. Meanwhile, the field-induced slow magnetic relaxation in this complex was mainly attributed to the Raman process.",

keywords = "ab initio calculations, cobalt(II), easy-plane magnetic anisotropy, high frequency electron paramagnetic resonance, slow magnetic relaxation",

author = "Deng, {Yi Fei} and Zhenxing Wang and Ouyang, {Zhong Wen} and Bing Yin and Zhiping Zheng and Zheng, {Yan Zhen}",

note = "Funding Information: This work was supported by “973 projects” (2012CB619401 and 2012CB619402), NSFC (21473129, 21103137, and IRT13034), “National Young 1000-Plan” program, Wuhan National High Magnetic Field Center (2015KF06), and the Fundamental Research Funds for Central Universities. We are grateful to Dr. Andrew Ozarowski, NHMFL, and Dr. Hiroyuki Nojiri, Tohoku University, for the EPR simulation and fitting software SPIN. Publisher Copyright: {\textcopyright} 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

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language = "English (US)",

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AU - Deng, Yi Fei

AU - Wang, Zhenxing

AU - Ouyang, Zhong Wen

AU - Yin, Bing

AU - Zheng, Zhiping

AU - Zheng, Yan Zhen

N1 - Funding Information: This work was supported by “973 projects” (2012CB619401 and 2012CB619402), NSFC (21473129, 21103137, and IRT13034), “National Young 1000-Plan” program, Wuhan National High Magnetic Field Center (2015KF06), and the Fundamental Research Funds for Central Universities. We are grateful to Dr. Andrew Ozarowski, NHMFL, and Dr. Hiroyuki Nojiri, Tohoku University, for the EPR simulation and fitting software SPIN. Publisher Copyright: © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2016/10/10

Y1 - 2016/10/10

N2 - Magnetic anisotropy is the key element in the construction of single-ion magnets, a kind of nanomagnets for high-density information storage. This works describes an unusual large easy-plane magnetic anisotropy (with a zero-field splitting parameter D of +40.2 cm−1), mainly arising from the second-order spin-orbit coupling effect in a trigonal-planar CoIIcomplex [Li(THF)4][Co(NPh2)3], revealed by combined studies of magnetism, high frequency/field electron paramagnetic resonance spectroscopy, and ab initio calculations. Meanwhile, the field-induced slow magnetic relaxation in this complex was mainly attributed to the Raman process.

AB - Magnetic anisotropy is the key element in the construction of single-ion magnets, a kind of nanomagnets for high-density information storage. This works describes an unusual large easy-plane magnetic anisotropy (with a zero-field splitting parameter D of +40.2 cm−1), mainly arising from the second-order spin-orbit coupling effect in a trigonal-planar CoIIcomplex [Li(THF)4][Co(NPh2)3], revealed by combined studies of magnetism, high frequency/field electron paramagnetic resonance spectroscopy, and ab initio calculations. Meanwhile, the field-induced slow magnetic relaxation in this complex was mainly attributed to the Raman process.

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KW - slow magnetic relaxation

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