A 3D porous cobalt-organic framework exhibiting spin-canted antiferromagnetism and field-induced spin-flop transition

You Gui Huang; Da Qiang Yuan; Long Pan; Fei Long Jiang; Ming Yan Wu; Xu Dong Zhang; Wei Wei; Qiang Gao; Yong Lee Jeong; Jing Li; Mao Chun Hong

doi:10.1021/ic700559z

A 3D porous cobalt-organic framework exhibiting spin-canted antiferromagnetism and field-induced spin-flop transition

You Gui Huang, Da Qiang Yuan, Long Pan, Fei Long Jiang, Ming Yan Wu, Xu Dong Zhang, Wei Wei, Qiang Gao, Yong Lee Jeong, Jing Li, Mao Chun Hong

Rutgers University

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

97 Citations (Scopus)

Abstract

Two 3D cobalt-organic frameworks formulated as [Co₃(2,4-pydc) ₂(μ₃-OH)₂]_n·5nH ₂O (1) and [Co₃(2,4-pydc)₂(μ₃-OH) ₂(H₂O)]_n·7nH₂O (2) (2,4-pydc = pyridine-2,4-dicarboxylate) have been hydrothermally synthesized and characterized. Both compounds 1 and 2 exhibit the 3D porous frameworks with hydroxyl-bridged metal Δ-chains. However, in comparison with only two crystallographically independent Co^II ions in a unit of 2, three crystallographically independent Co^II ions are found in an asymmetric unit of 1, where their Δ-chains are constructed by two types of Vertexes sharing quadrangles formed via edge-sharing triangles. Magnetic studies show that 1 exhibits spin-canted antiferomagnetism and a field-induced spin-flop transition while 2 behaves as a normal antiferromagnet. The magnetic properties are largely retained by the porous frameworks of dehydrated 1 and 2 compounds. Gas adsorption measurements indicate that both the dehydrated compounds absorb H₂ into their pores.

Original language	English
Pages (from-to)	9609-9615
Number of pages	7
Journal	Inorganic Chemistry
Volume	46
Issue number	23
DOIs	https://doi.org/10.1021/ic700559z
Publication status	Published - Nov 12 2007

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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10.1021/ic700559z

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A 3D porous cobalt-organic framework exhibiting spin-canted antiferromagnetism and field-induced spin-flop transition. / Huang, You Gui; Yuan, Da Qiang; Pan, Long; Jiang, Fei Long; Wu, Ming Yan; Zhang, Xu Dong; Wei, Wei; Gao, Qiang; Jeong, Yong Lee; Li, Jing; Hong, Mao Chun.

In: Inorganic Chemistry, Vol. 46, No. 23, 12.11.2007, p. 9609-9615.

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

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title = "A 3D porous cobalt-organic framework exhibiting spin-canted antiferromagnetism and field-induced spin-flop transition",

abstract = "Two 3D cobalt-organic frameworks formulated as [Co3(2,4-pydc) 2(μ3-OH)2]n·5nH 2O (1) and [Co3(2,4-pydc)2(μ3-OH) 2(H2O)]n·7nH2O (2) (2,4-pydc = pyridine-2,4-dicarboxylate) have been hydrothermally synthesized and characterized. Both compounds 1 and 2 exhibit the 3D porous frameworks with hydroxyl-bridged metal Δ-chains. However, in comparison with only two crystallographically independent CoII ions in a unit of 2, three crystallographically independent CoII ions are found in an asymmetric unit of 1, where their Δ-chains are constructed by two types of Vertexes sharing quadrangles formed via edge-sharing triangles. Magnetic studies show that 1 exhibits spin-canted antiferomagnetism and a field-induced spin-flop transition while 2 behaves as a normal antiferromagnet. The magnetic properties are largely retained by the porous frameworks of dehydrated 1 and 2 compounds. Gas adsorption measurements indicate that both the dehydrated compounds absorb H2 into their pores.",

author = "Huang, {You Gui} and Yuan, {Da Qiang} and Long Pan and Jiang, {Fei Long} and Wu, {Ming Yan} and Zhang, {Xu Dong} and Wei Wei and Qiang Gao and Jeong, {Yong Lee} and Jing Li and Hong, {Mao Chun}",

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AU - Wu, Ming Yan

AU - Zhang, Xu Dong

AU - Wei, Wei

AU - Gao, Qiang

AU - Jeong, Yong Lee

AU - Li, Jing

AU - Hong, Mao Chun

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N2 - Two 3D cobalt-organic frameworks formulated as [Co3(2,4-pydc) 2(μ3-OH)2]n·5nH 2O (1) and [Co3(2,4-pydc)2(μ3-OH) 2(H2O)]n·7nH2O (2) (2,4-pydc = pyridine-2,4-dicarboxylate) have been hydrothermally synthesized and characterized. Both compounds 1 and 2 exhibit the 3D porous frameworks with hydroxyl-bridged metal Δ-chains. However, in comparison with only two crystallographically independent CoII ions in a unit of 2, three crystallographically independent CoII ions are found in an asymmetric unit of 1, where their Δ-chains are constructed by two types of Vertexes sharing quadrangles formed via edge-sharing triangles. Magnetic studies show that 1 exhibits spin-canted antiferomagnetism and a field-induced spin-flop transition while 2 behaves as a normal antiferromagnet. The magnetic properties are largely retained by the porous frameworks of dehydrated 1 and 2 compounds. Gas adsorption measurements indicate that both the dehydrated compounds absorb H2 into their pores.

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