Polymeric Perturbation to the Magnetic Relaxations of the C2v-Symmetric [Er(Cp)2(OBu)2]- Anion

Tian Han; You Song Ding; Ji Dong Leng; Zhiping Zheng; Yan Zhen Zheng

doi:10.1021/acs.inorgchem.5b00213

Polymeric Perturbation to the Magnetic Relaxations of the C_2v-Symmetric [Er(Cp)₂(OBu)₂]^- Anion

Tian Han, You Song Ding, Ji Dong Leng, Zhiping Zheng, Yan Zhen Zheng

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

15 Scopus citations

Abstract

To test the coordination symmetry effect on the magnetization-reversal barrier trend of Er^III-based single-ion magnets, the C_2v-symmetric organolanthanide anion [Er(Cp)₂(O^tBu)₂]^- has been incorporated with different countercations, resulting in two structures, namely, the discrete [K₂(Cp)(18-C-6)₂][Er(Cp)₂(O^tBu)₂] (1) and the polymeric [ErK₂(Cp)₃(O^tBu)₂(THF)₂]_n (2), where 18-C-6 = 18-crown-6 ether and Cp = cyclopentadienide. Surprisingly, the polymeric 2 exhibits much stronger field-induced magnetization relaxing behavior compared to the monomeric 1. Such disparate dynamic magnetism is attributable to the subtle coordination environmental perturbations of the central Er^III ions.

Original language	English (US)
Pages (from-to)	4588-4590
Number of pages	3
Journal	Inorganic Chemistry
Volume	54
Issue number	10
DOIs	https://doi.org/10.1021/acs.inorgchem.5b00213
State	Published - May 18 2015
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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10.1021/acs.inorgchem.5b00213

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title = "Polymeric Perturbation to the Magnetic Relaxations of the C2v-Symmetric [Er(Cp)2(OBu)2]- Anion",

abstract = "To test the coordination symmetry effect on the magnetization-reversal barrier trend of ErIII-based single-ion magnets, the C2v-symmetric organolanthanide anion [Er(Cp)2(OtBu)2]- has been incorporated with different countercations, resulting in two structures, namely, the discrete [K2(Cp)(18-C-6)2][Er(Cp)2(OtBu)2] (1) and the polymeric [ErK2(Cp)3(OtBu)2(THF)2]n (2), where 18-C-6 = 18-crown-6 ether and Cp = cyclopentadienide. Surprisingly, the polymeric 2 exhibits much stronger field-induced magnetization relaxing behavior compared to the monomeric 1. Such disparate dynamic magnetism is attributable to the subtle coordination environmental perturbations of the central ErIII ions.",

author = "Tian Han and Ding, {You Song} and Leng, {Ji Dong} and Zhiping Zheng and Zheng, {Yan Zhen}",

note = "Publisher Copyright: {\textcopyright} 2015 American Chemical Society.",

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T1 - Polymeric Perturbation to the Magnetic Relaxations of the C2v-Symmetric [Er(Cp)2(OBu)2]- Anion

AU - Han, Tian

AU - Ding, You Song

AU - Leng, Ji Dong

AU - Zheng, Zhiping

AU - Zheng, Yan Zhen

PY - 2015/5/18

Y1 - 2015/5/18

N2 - To test the coordination symmetry effect on the magnetization-reversal barrier trend of ErIII-based single-ion magnets, the C2v-symmetric organolanthanide anion [Er(Cp)2(OtBu)2]- has been incorporated with different countercations, resulting in two structures, namely, the discrete [K2(Cp)(18-C-6)2][Er(Cp)2(OtBu)2] (1) and the polymeric [ErK2(Cp)3(OtBu)2(THF)2]n (2), where 18-C-6 = 18-crown-6 ether and Cp = cyclopentadienide. Surprisingly, the polymeric 2 exhibits much stronger field-induced magnetization relaxing behavior compared to the monomeric 1. Such disparate dynamic magnetism is attributable to the subtle coordination environmental perturbations of the central ErIII ions.

AB - To test the coordination symmetry effect on the magnetization-reversal barrier trend of ErIII-based single-ion magnets, the C2v-symmetric organolanthanide anion [Er(Cp)2(OtBu)2]- has been incorporated with different countercations, resulting in two structures, namely, the discrete [K2(Cp)(18-C-6)2][Er(Cp)2(OtBu)2] (1) and the polymeric [ErK2(Cp)3(OtBu)2(THF)2]n (2), where 18-C-6 = 18-crown-6 ether and Cp = cyclopentadienide. Surprisingly, the polymeric 2 exhibits much stronger field-induced magnetization relaxing behavior compared to the monomeric 1. Such disparate dynamic magnetism is attributable to the subtle coordination environmental perturbations of the central ErIII ions.

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Polymeric Perturbation to the Magnetic Relaxations of the C_2v-Symmetric [Er(Cp)₂(OBu)₂]^- Anion

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CCDC 1036789: Experimental Crystal Structure Determination

CCDC 1036788: Experimental Crystal Structure Determination

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Polymeric Perturbation to the Magnetic Relaxations of the C2v-Symmetric [Er(Cp)2(OBu)2]- Anion

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CCDC 1036789: Experimental Crystal Structure Determination

CCDC 1036788: Experimental Crystal Structure Determination

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Polymeric Perturbation to the Magnetic Relaxations of the C_2v-Symmetric [Er(Cp)₂(OBu)₂]^- Anion