Synthesis, crystal structure and magnetic properties of a two-dimensional lamellar coordination polymer manganese(II) pyrazinecarboxylate

Chen Xin Cai; Yun Qi Tian; Xiao Ming Ren; Yi Zhi Li; Xiao Zeng You; Song Li

doi:10.1023/A:1021395823378

Synthesis, crystal structure and magnetic properties of a two-dimensional lamellar coordination polymer manganese(II) pyrazinecarboxylate

Chen Xin Cai, Yun Qi Tian, Xiao Ming Ren, Yi Zhi Li, Xiao Zeng You, Song Li

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

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Abstract

The two-dimensional (2D) lamellar coordination polymer [Mn(pzc)₂]_n (pzc = pyrazinecarboxylate) was prepared and its structure determined by X-ray diffraction. Each Mn^II ion lies in a distorted octahedron coordination sphere, and the pzc ligand adopts two types of bridging mode. As a result, there are two different distances between adjacent Mn¹¹ atoms: one being 3.50(6) Å via μ₂-O forming a dimer of Mn^II, and the other 5.65(4) Å through the syn-anti carboxy oxygen atoms. The latter links the dimer to form an extended 2D lamellar structure. All Mn^II ions in each layer are nearly coplanar. The adjacent sheets are significantly associated via hydrogen bonding and the shortest interlayer Mn⋯Mn separation is 9.4 Å. The e.s.r. spectrum shows a broad isotropic band centered at g = 2.019. Temperature-dependent magnetic susceptibility measurements (2.0-300 K) reveal the presence of an antiferromagnetic interaction in the coordination polymer.

Original language	English
Pages (from-to)	924-927
Number of pages	4
Journal	Transition Metal Chemistry
Volume	27
Issue number	8
DOIs	https://doi.org/10.1023/A:1021395823378
State	Published - Nov 2002
Externally published	Yes

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title = "Synthesis, crystal structure and magnetic properties of a two-dimensional lamellar coordination polymer manganese(II) pyrazinecarboxylate",

abstract = "The two-dimensional (2D) lamellar coordination polymer [Mn(pzc)2]n (pzc = pyrazinecarboxylate) was prepared and its structure determined by X-ray diffraction. Each MnII ion lies in a distorted octahedron coordination sphere, and the pzc ligand adopts two types of bridging mode. As a result, there are two different distances between adjacent Mn11 atoms: one being 3.50(6) {\AA} via μ2-O forming a dimer of MnII, and the other 5.65(4) {\AA} through the syn-anti carboxy oxygen atoms. The latter links the dimer to form an extended 2D lamellar structure. All MnII ions in each layer are nearly coplanar. The adjacent sheets are significantly associated via hydrogen bonding and the shortest interlayer Mn⋯Mn separation is 9.4 {\AA}. The e.s.r. spectrum shows a broad isotropic band centered at g = 2.019. Temperature-dependent magnetic susceptibility measurements (2.0-300 K) reveal the presence of an antiferromagnetic interaction in the coordination polymer.",

author = "Cai, {Chen Xin} and Tian, {Yun Qi} and Ren, {Xiao Ming} and Li, {Yi Zhi} and You, {Xiao Zeng} and Song Li",

year = "2002",

month = nov,

doi = "10.1023/A:1021395823378",

language = "英语",

volume = "27",

pages = "924--927",

journal = "Transition Metal Chemistry",

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TY - JOUR

T1 - Synthesis, crystal structure and magnetic properties of a two-dimensional lamellar coordination polymer manganese(II) pyrazinecarboxylate

AU - Cai, Chen Xin

AU - Tian, Yun Qi

AU - Ren, Xiao Ming

AU - Li, Yi Zhi

AU - You, Xiao Zeng

AU - Li, Song

PY - 2002/11

Y1 - 2002/11

N2 - The two-dimensional (2D) lamellar coordination polymer [Mn(pzc)2]n (pzc = pyrazinecarboxylate) was prepared and its structure determined by X-ray diffraction. Each MnII ion lies in a distorted octahedron coordination sphere, and the pzc ligand adopts two types of bridging mode. As a result, there are two different distances between adjacent Mn11 atoms: one being 3.50(6) Å via μ2-O forming a dimer of MnII, and the other 5.65(4) Å through the syn-anti carboxy oxygen atoms. The latter links the dimer to form an extended 2D lamellar structure. All MnII ions in each layer are nearly coplanar. The adjacent sheets are significantly associated via hydrogen bonding and the shortest interlayer Mn⋯Mn separation is 9.4 Å. The e.s.r. spectrum shows a broad isotropic band centered at g = 2.019. Temperature-dependent magnetic susceptibility measurements (2.0-300 K) reveal the presence of an antiferromagnetic interaction in the coordination polymer.

AB - The two-dimensional (2D) lamellar coordination polymer [Mn(pzc)2]n (pzc = pyrazinecarboxylate) was prepared and its structure determined by X-ray diffraction. Each MnII ion lies in a distorted octahedron coordination sphere, and the pzc ligand adopts two types of bridging mode. As a result, there are two different distances between adjacent Mn11 atoms: one being 3.50(6) Å via μ2-O forming a dimer of MnII, and the other 5.65(4) Å through the syn-anti carboxy oxygen atoms. The latter links the dimer to form an extended 2D lamellar structure. All MnII ions in each layer are nearly coplanar. The adjacent sheets are significantly associated via hydrogen bonding and the shortest interlayer Mn⋯Mn separation is 9.4 Å. The e.s.r. spectrum shows a broad isotropic band centered at g = 2.019. Temperature-dependent magnetic susceptibility measurements (2.0-300 K) reveal the presence of an antiferromagnetic interaction in the coordination polymer.

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U2 - 10.1023/A:1021395823378

DO - 10.1023/A:1021395823378

M3 - 文章

AN - SCOPUS:0036873867

SN - 0340-4285

VL - 27

SP - 924

EP - 927

JO - Transition Metal Chemistry

JF - Transition Metal Chemistry

IS - 8

ER -

Synthesis, crystal structure and magnetic properties of a two-dimensional lamellar coordination polymer manganese(II) pyrazinecarboxylate

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