Novel three-dimensional metal-azide network induced by a bipyridine-based zwitterionic monocarboxylate ligand: Structures and magnetism

Yu Ma; Xiu Bing Li; Xiu Chun Yi; Qin Xiang Jia; En Qing Gao; Cai Ming Liu

doi:10.1021/ic1011633

Novel three-dimensional metal-azide network induced by a bipyridine-based zwitterionic monocarboxylate ligand: Structures and magnetism

Yu Ma
, Xiu Bing Li
, Xiu Chun Yi
, Qin Xiang Jia
, En Qing Gao^*
, Cai Ming Liu

^*Corresponding author for this work

School of Chemistry and Molecular Engineering

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

43 Scopus citations

Abstract

The 4,4′-bipyridine-based zwitterionic monocarboxylate ligand, 4,4′-dipyridinio-1-acetate (L), is used as coligand to construct novel magnetic coordination polymers with mixed azide and carboxylate bridges. Two compounds, [Co₂(L)₂(N₃)₄(H ₂O)] 4H₂O (1) and [Mn₆(L)₄(N ₃)₁₂(H₂O)] 5H₂O (2), have been structurally and magnetically characterized. Compound 1 consists of one-dimensional (1D) coordination chains in which the unprecedented binuclear motifs with mixed (μ-EO-N₃)(μ-COO)₂ (EO = end-on) triple bridges are cross-linked by the 4,4′-dipyridinium-N-methylene spacers. In compound 2, the azide anions link the metal ions into a very complicated three-dimensional (3D) network with unprecedented topology, and the zwitterionic coligand is embedded in and serves as additional supports for the 3D network. Magnetic studies reveal that the mixed (μ-EO-N ₃)(μ-COO)₂ triple bridges transmit ferromagnetic coupling in the Co(II) compound, and the overall antiferromagnetic interactions exist in the Mn(II) compound.

Original language	English
Pages (from-to)	8092-8098
Number of pages	7
Journal	Inorganic Chemistry
Volume	49
Issue number	17
DOIs	https://doi.org/10.1021/ic1011633
State	Published - 6 Sep 2010

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title = "Novel three-dimensional metal-azide network induced by a bipyridine-based zwitterionic monocarboxylate ligand: Structures and magnetism",

abstract = "The 4,4′-bipyridine-based zwitterionic monocarboxylate ligand, 4,4′-dipyridinio-1-acetate (L), is used as coligand to construct novel magnetic coordination polymers with mixed azide and carboxylate bridges. Two compounds, [Co2(L)2(N3)4(H 2O)] 4H2O (1) and [Mn6(L)4(N 3)12(H2O)] 5H2O (2), have been structurally and magnetically characterized. Compound 1 consists of one-dimensional (1D) coordination chains in which the unprecedented binuclear motifs with mixed (μ-EO-N3)(μ-COO)2 (EO = end-on) triple bridges are cross-linked by the 4,4′-dipyridinium-N-methylene spacers. In compound 2, the azide anions link the metal ions into a very complicated three-dimensional (3D) network with unprecedented topology, and the zwitterionic coligand is embedded in and serves as additional supports for the 3D network. Magnetic studies reveal that the mixed (μ-EO-N 3)(μ-COO)2 triple bridges transmit ferromagnetic coupling in the Co(II) compound, and the overall antiferromagnetic interactions exist in the Mn(II) compound.",

author = "Yu Ma and Li, \{Xiu Bing\} and Yi, \{Xiu Chun\} and Jia, \{Qin Xiang\} and Gao, \{En Qing\} and Liu, \{Cai Ming\}",

year = "2010",

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doi = "10.1021/ic1011633",

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T1 - Novel three-dimensional metal-azide network induced by a bipyridine-based zwitterionic monocarboxylate ligand

T2 - Structures and magnetism

AU - Ma, Yu

AU - Li, Xiu Bing

AU - Yi, Xiu Chun

AU - Jia, Qin Xiang

AU - Gao, En Qing

AU - Liu, Cai Ming

PY - 2010/9/6

Y1 - 2010/9/6

N2 - The 4,4′-bipyridine-based zwitterionic monocarboxylate ligand, 4,4′-dipyridinio-1-acetate (L), is used as coligand to construct novel magnetic coordination polymers with mixed azide and carboxylate bridges. Two compounds, [Co2(L)2(N3)4(H 2O)] 4H2O (1) and [Mn6(L)4(N 3)12(H2O)] 5H2O (2), have been structurally and magnetically characterized. Compound 1 consists of one-dimensional (1D) coordination chains in which the unprecedented binuclear motifs with mixed (μ-EO-N3)(μ-COO)2 (EO = end-on) triple bridges are cross-linked by the 4,4′-dipyridinium-N-methylene spacers. In compound 2, the azide anions link the metal ions into a very complicated three-dimensional (3D) network with unprecedented topology, and the zwitterionic coligand is embedded in and serves as additional supports for the 3D network. Magnetic studies reveal that the mixed (μ-EO-N 3)(μ-COO)2 triple bridges transmit ferromagnetic coupling in the Co(II) compound, and the overall antiferromagnetic interactions exist in the Mn(II) compound.

AB - The 4,4′-bipyridine-based zwitterionic monocarboxylate ligand, 4,4′-dipyridinio-1-acetate (L), is used as coligand to construct novel magnetic coordination polymers with mixed azide and carboxylate bridges. Two compounds, [Co2(L)2(N3)4(H 2O)] 4H2O (1) and [Mn6(L)4(N 3)12(H2O)] 5H2O (2), have been structurally and magnetically characterized. Compound 1 consists of one-dimensional (1D) coordination chains in which the unprecedented binuclear motifs with mixed (μ-EO-N3)(μ-COO)2 (EO = end-on) triple bridges are cross-linked by the 4,4′-dipyridinium-N-methylene spacers. In compound 2, the azide anions link the metal ions into a very complicated three-dimensional (3D) network with unprecedented topology, and the zwitterionic coligand is embedded in and serves as additional supports for the 3D network. Magnetic studies reveal that the mixed (μ-EO-N 3)(μ-COO)2 triple bridges transmit ferromagnetic coupling in the Co(II) compound, and the overall antiferromagnetic interactions exist in the Mn(II) compound.

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U2 - 10.1021/ic1011633

DO - 10.1021/ic1011633

M3 - 文章

AN - SCOPUS:77956212782

SN - 0020-1669

VL - 49

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JO - Inorganic Chemistry

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IS - 17

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Novel three-dimensional metal-azide network induced by a bipyridine-based zwitterionic monocarboxylate ligand: Structures and magnetism

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