Pressure response of three-dimensional cyanide-bridged bimetallic magnets

Masaaki Ohba; Wakako Kaneko; Susumu Kitagawa; Takuho Maeda; Masaki Mito

doi:10.1021/ja7110509

Pressure response of three-dimensional cyanide-bridged bimetallic magnets

Masaaki Ohba, Wakako Kaneko, Susumu Kitagawa, Takuho Maeda, Masaki Mito

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

87 Citations (Scopus)

Abstract

Effects of pressure on the structures and magnetic properties of three types of 3-D cyanide-bridged bimetallic coordination polymer magnets, Mn ^IICr^III ferrimagnet [Mn(en)]₃[Cr(CN) ₆]₂·4H₂O (1; en = ethylenediamine), Ni^IICr^III ferromagnet [Ni(dipn)]₃[Cr(CN) ₆]₂·3H₂O (2; dipn = N,N-di(3- aminopropyl)amine), and Ni^IIFe^III ferromagnet [Ni(dipn)]₂[Ni(dipn)(H₂O)][Fe(CN)₆] ₂·11H₂O (3), were systematically examined under hydrostatic pressure up to 19.8 GPa using a piston-cylinder-type pressure cell and a diamond anvil cell. The ferrimagnet 1 showed the reversible crystalline-to-amorphous-like phase change, and the magnetic phase transition temperature (T_C) was reversibly changed from 69 K at 0 GPa to 126 K at 4.7 GPa. At higher pressure, the net magnetization was suppressed with increasing pressure, and the magnetic state at 19.8 GPa was assumed to be paramagnetic. The initial ferrimagnetic phase of 1 was not recovered after releasing the pressure from 19.8 GPa. The magnetic phase of 2 was reversibly converted between ferromagnetic and paramagnetic-like phase in the range 0 ≤ P ≤ 4.7 GPa while maintaining its crystallinity. The porous ferromagnet 3 was easily amorphized and irreversibly lost the ferromagnetic phase under low pressure (P ≤ 1.0 GPa). The flexible cyanide-bridged magnetic frameworks demonstrate well the pressure response as a reflection of differences in the magnetic structure and the framework strength in the GPa range.

Original language	English
Pages (from-to)	4475-4484
Number of pages	10
Journal	Journal of the American Chemical Society
Volume	130
Issue number	13
DOIs	https://doi.org/10.1021/ja7110509
Publication status	Published - Apr 2 2008
Externally published	Yes

All Science Journal Classification (ASJC) codes

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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10.1021/ja7110509

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@article{97e3763e8e9e422591ebc9e3481472e0,

title = "Pressure response of three-dimensional cyanide-bridged bimetallic magnets",

abstract = "Effects of pressure on the structures and magnetic properties of three types of 3-D cyanide-bridged bimetallic coordination polymer magnets, Mn IICrIII ferrimagnet [Mn(en)]3[Cr(CN) 6]2·4H2O (1; en = ethylenediamine), NiIICrIII ferromagnet [Ni(dipn)]3[Cr(CN) 6]2·3H2O (2; dipn = N,N-di(3- aminopropyl)amine), and NiIIFeIII ferromagnet [Ni(dipn)]2[Ni(dipn)(H2O)][Fe(CN)6] 2·11H2O (3), were systematically examined under hydrostatic pressure up to 19.8 GPa using a piston-cylinder-type pressure cell and a diamond anvil cell. The ferrimagnet 1 showed the reversible crystalline-to-amorphous-like phase change, and the magnetic phase transition temperature (TC) was reversibly changed from 69 K at 0 GPa to 126 K at 4.7 GPa. At higher pressure, the net magnetization was suppressed with increasing pressure, and the magnetic state at 19.8 GPa was assumed to be paramagnetic. The initial ferrimagnetic phase of 1 was not recovered after releasing the pressure from 19.8 GPa. The magnetic phase of 2 was reversibly converted between ferromagnetic and paramagnetic-like phase in the range 0 ≤ P ≤ 4.7 GPa while maintaining its crystallinity. The porous ferromagnet 3 was easily amorphized and irreversibly lost the ferromagnetic phase under low pressure (P ≤ 1.0 GPa). The flexible cyanide-bridged magnetic frameworks demonstrate well the pressure response as a reflection of differences in the magnetic structure and the framework strength in the GPa range.",

author = "Masaaki Ohba and Wakako Kaneko and Susumu Kitagawa and Takuho Maeda and Masaki Mito",

year = "2008",

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doi = "10.1021/ja7110509",

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T1 - Pressure response of three-dimensional cyanide-bridged bimetallic magnets

AU - Ohba, Masaaki

AU - Kaneko, Wakako

AU - Kitagawa, Susumu

AU - Maeda, Takuho

AU - Mito, Masaki

PY - 2008/4/2

Y1 - 2008/4/2

N2 - Effects of pressure on the structures and magnetic properties of three types of 3-D cyanide-bridged bimetallic coordination polymer magnets, Mn IICrIII ferrimagnet [Mn(en)]3[Cr(CN) 6]2·4H2O (1; en = ethylenediamine), NiIICrIII ferromagnet [Ni(dipn)]3[Cr(CN) 6]2·3H2O (2; dipn = N,N-di(3- aminopropyl)amine), and NiIIFeIII ferromagnet [Ni(dipn)]2[Ni(dipn)(H2O)][Fe(CN)6] 2·11H2O (3), were systematically examined under hydrostatic pressure up to 19.8 GPa using a piston-cylinder-type pressure cell and a diamond anvil cell. The ferrimagnet 1 showed the reversible crystalline-to-amorphous-like phase change, and the magnetic phase transition temperature (TC) was reversibly changed from 69 K at 0 GPa to 126 K at 4.7 GPa. At higher pressure, the net magnetization was suppressed with increasing pressure, and the magnetic state at 19.8 GPa was assumed to be paramagnetic. The initial ferrimagnetic phase of 1 was not recovered after releasing the pressure from 19.8 GPa. The magnetic phase of 2 was reversibly converted between ferromagnetic and paramagnetic-like phase in the range 0 ≤ P ≤ 4.7 GPa while maintaining its crystallinity. The porous ferromagnet 3 was easily amorphized and irreversibly lost the ferromagnetic phase under low pressure (P ≤ 1.0 GPa). The flexible cyanide-bridged magnetic frameworks demonstrate well the pressure response as a reflection of differences in the magnetic structure and the framework strength in the GPa range.

AB - Effects of pressure on the structures and magnetic properties of three types of 3-D cyanide-bridged bimetallic coordination polymer magnets, Mn IICrIII ferrimagnet [Mn(en)]3[Cr(CN) 6]2·4H2O (1; en = ethylenediamine), NiIICrIII ferromagnet [Ni(dipn)]3[Cr(CN) 6]2·3H2O (2; dipn = N,N-di(3- aminopropyl)amine), and NiIIFeIII ferromagnet [Ni(dipn)]2[Ni(dipn)(H2O)][Fe(CN)6] 2·11H2O (3), were systematically examined under hydrostatic pressure up to 19.8 GPa using a piston-cylinder-type pressure cell and a diamond anvil cell. The ferrimagnet 1 showed the reversible crystalline-to-amorphous-like phase change, and the magnetic phase transition temperature (TC) was reversibly changed from 69 K at 0 GPa to 126 K at 4.7 GPa. At higher pressure, the net magnetization was suppressed with increasing pressure, and the magnetic state at 19.8 GPa was assumed to be paramagnetic. The initial ferrimagnetic phase of 1 was not recovered after releasing the pressure from 19.8 GPa. The magnetic phase of 2 was reversibly converted between ferromagnetic and paramagnetic-like phase in the range 0 ≤ P ≤ 4.7 GPa while maintaining its crystallinity. The porous ferromagnet 3 was easily amorphized and irreversibly lost the ferromagnetic phase under low pressure (P ≤ 1.0 GPa). The flexible cyanide-bridged magnetic frameworks demonstrate well the pressure response as a reflection of differences in the magnetic structure and the framework strength in the GPa range.

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DO - 10.1021/ja7110509

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JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 13

ER -

Pressure response of three-dimensional cyanide-bridged bimetallic magnets

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