Magnetic Tuning of an Anionic CoII-MOF through Deionization of the Framework: Spin-Canting, Spin-Flop, and Easy-Plane Magnetic Anisotropy

Chong Bin Tian; Yun Hu Han; Zhang Zhen He; Shao Wu Du

doi:10.1002/chem.201604809

Magnetic Tuning of an Anionic Co^II-MOF through Deionization of the Framework: Spin-Canting, Spin-Flop, and Easy-Plane Magnetic Anisotropy

Chong Bin Tian
, Yun Hu Han
, Zhang Zhen He
, Shao Wu Du

CAS - Fujian Institute of Research on the Structure of Matter

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

24 Scopus citations

Abstract

An anionic Co^II-MOF, (Me₂NH₂)[Co₃(Me₂NH)₃(OH)(SDBA)₃] (1) (H₂SDBA=4,4′-sulfonyldibenzoic acid) consisting of highly symmetric Co^II₃(μ₃-OH) triangles exhibits spin-canting, spin-flop, and easy-plane magnetic anisotropy. Measurement on a single crystal shows that the ab plane of 1 is the easy magnetization plane. After structural modification through simultaneous removal of the coordinated dimethylamine (DMA) molecule at the Co center and the ionic groups DMA⁺and OH⁻, the resulting neutral amorphous framework 2 displays an enhanced spin frustration effect. The deionization of 1 does not result in the collapse of the framework, showing the high stability of the backbone structure.

Original language	English
Pages (from-to)	767-772
Number of pages	6
Journal	Chemistry - A European Journal
Volume	23
Issue number	4
DOIs	https://doi.org/10.1002/chem.201604809
State	Published - 18 Jan 2017
Externally published	Yes

Keywords

magnetic anisotropy
spin frustration
spin-canting
spin-flop
structural modification

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10.1002/chem.201604809

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title = "Magnetic Tuning of an Anionic CoII-MOF through Deionization of the Framework: Spin-Canting, Spin-Flop, and Easy-Plane Magnetic Anisotropy",

abstract = "An anionic CoII-MOF, (Me2NH2)[Co3(Me2NH)3(OH)(SDBA)3] (1) (H2SDBA=4,4′-sulfonyldibenzoic acid) consisting of highly symmetric CoII3(μ3-OH) triangles exhibits spin-canting, spin-flop, and easy-plane magnetic anisotropy. Measurement on a single crystal shows that the ab plane of 1 is the easy magnetization plane. After structural modification through simultaneous removal of the coordinated dimethylamine (DMA) molecule at the Co center and the ionic groups DMA+and OH−, the resulting neutral amorphous framework 2 displays an enhanced spin frustration effect. The deionization of 1 does not result in the collapse of the framework, showing the high stability of the backbone structure.",

keywords = "magnetic anisotropy, spin frustration, spin-canting, spin-flop, structural modification",

author = "Tian, \{Chong Bin\} and Han, \{Yun Hu\} and He, \{Zhang Zhen\} and Du, \{Shao Wu\}",

note = "Publisher Copyright: {\textcopyright} 2017 Wiley-VCH Verlag GmbH \& Co. KGaA, Weinheim",

year = "2017",

month = jan,

day = "18",

doi = "10.1002/chem.201604809",

language = "英语",

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TY - JOUR

T1 - Magnetic Tuning of an Anionic CoII-MOF through Deionization of the Framework

T2 - Spin-Canting, Spin-Flop, and Easy-Plane Magnetic Anisotropy

AU - Tian, Chong Bin

AU - Han, Yun Hu

AU - He, Zhang Zhen

AU - Du, Shao Wu

PY - 2017/1/18

Y1 - 2017/1/18

N2 - An anionic CoII-MOF, (Me2NH2)[Co3(Me2NH)3(OH)(SDBA)3] (1) (H2SDBA=4,4′-sulfonyldibenzoic acid) consisting of highly symmetric CoII3(μ3-OH) triangles exhibits spin-canting, spin-flop, and easy-plane magnetic anisotropy. Measurement on a single crystal shows that the ab plane of 1 is the easy magnetization plane. After structural modification through simultaneous removal of the coordinated dimethylamine (DMA) molecule at the Co center and the ionic groups DMA+and OH−, the resulting neutral amorphous framework 2 displays an enhanced spin frustration effect. The deionization of 1 does not result in the collapse of the framework, showing the high stability of the backbone structure.

AB - An anionic CoII-MOF, (Me2NH2)[Co3(Me2NH)3(OH)(SDBA)3] (1) (H2SDBA=4,4′-sulfonyldibenzoic acid) consisting of highly symmetric CoII3(μ3-OH) triangles exhibits spin-canting, spin-flop, and easy-plane magnetic anisotropy. Measurement on a single crystal shows that the ab plane of 1 is the easy magnetization plane. After structural modification through simultaneous removal of the coordinated dimethylamine (DMA) molecule at the Co center and the ionic groups DMA+and OH−, the resulting neutral amorphous framework 2 displays an enhanced spin frustration effect. The deionization of 1 does not result in the collapse of the framework, showing the high stability of the backbone structure.

KW - magnetic anisotropy

KW - spin frustration

KW - spin-canting

KW - spin-flop

KW - structural modification

UR - https://www.scopus.com/pages/publications/85007241890

U2 - 10.1002/chem.201604809

DO - 10.1002/chem.201604809

M3 - 文章

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AN - SCOPUS:85007241890

SN - 0947-6539

VL - 23

SP - 767

EP - 772

JO - Chemistry - A European Journal

JF - Chemistry - A European Journal

IS - 4

ER -

Magnetic Tuning of an Anionic Co^II-MOF through Deionization of the Framework: Spin-Canting, Spin-Flop, and Easy-Plane Magnetic Anisotropy

Abstract

Keywords

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