Synthesis and magnetic properties of a tetranuclear copper(II) coordination compound constructed of a multi-carboxylate ligand and 2,2′-bipyridine

Jiang X.; Xia H.; Zhu Y.-F.; Huang C.-X.; Liao Y.-H.

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Synthesis and magnetic properties of a tetranuclear copper(II) coordination compound constructed of a multi-carboxylate ligand and 2,2′-bipyridine

机译：多羧酸盐配体和2,2'-联吡啶构成的四核铜（II）配位化合物的合成和磁性

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摘要

A novel inorganic-organic hybrid compound [Cu_2(TTHA)(bpy) _2(H_2O)]_2·6H_2O (TTHA = 1,3,5-triazine-2,4,6- triamine hexaacetic acid; bpy = 2,2′-bipyridine) was synthesized and characterized. The compound crystallizes in the triclinic space group P$ar{1}$ with cell dimensions of a = 10.4837(14) ?, b = 13.0935(17) ?, c = 16.183(2) ?, α = 93.386(2)°, β = 96.181(2)°, γ = 92.570(2)°, V = 2201.7(5) ?~3 and Z = 1. Single-crystal X-ray analysis shows that the structure is made up by a strictly planar CuO_2Cu ring with monoatomic bridging carboxylate oxygen atoms and a Cu-Cu distance of 3.458 ?. The 3D supermolecular network is constructed by three kinds of interactions including coordinate covalent bonds, hydrogen bonds, and π-π staking interactions. Thermogravimetric analysis, IR spectrum, and PXRD of the compound are given. The variable-temperature magnetic susceptibility analysis of this compound (2-300 K) shows a weak ferromagnetic magnetic exchange interaction with 2J = 2.23 cm~(-1).

机译：一种新型的无机-有机杂化化合物[Cu_2（TTHA）（bpy）_2（H_2O）] _ 2·6H_2O（TTHA = 1,3,5-三嗪-2,4,6-三胺六乙酸; bpy = 2,2'合成和表征。该化合物在三边形空间群P $ bar {1} $中结晶，晶胞尺寸为a = 10.4837（14）？，b = 13.0935（17）？，c = 16.183（2）？，α= 93.386（2） °，β= 96.181（2）°，γ= 92.570（2）°，V = 2201.7（5）？〜3，Z =1。单晶X射线分析表明，该结构是由严格平面构成的具有单原子桥接羧酸盐氧原子且Cu-Cu距离为3.458的CuO_2Cu环。 3D超分子网络由三种相互作用构成，包括配位共价键，氢键和π-π桩相互作用。给出了化合物的热重分析，红外光谱和PXRD。该化合物（2-300 K）的变温磁化率分析表明，其铁磁磁交换作用较弱，2J = 2.23 cm〜（-1）。

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《Zeitschrift fur Anorganische und Allgemeine Chemie》 |2011年第15期|共5页
作者
Jiang X.; Xia H.; Zhu Y.-F.; Huang C.-X.; Liao Y.-H.;
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正文语种 eng
中图分类化学;
关键词
Copper; Crystal structure; CuO2Cu ring; Magnetic properties; TTHA;

机译：铜;晶体结构;CuO2Cu环;磁性;TTHA;

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1. Synthesis and magnetic properties of a tetranuclear copper(II) coordination compound constructed of a multi-carboxylate ligand and 2,2′-bipyridine [J] . Jiang X., Xia H., Zhu Y.-F., Zeitschrift fur Anorganische und Allgemeine Chemie . 2011,第14a15期

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2. Syntheses, crystal structures, and magnetic properties of copper(II) and manganese(II) compounds constructed from 5-sulfoisophthalic acid (H3SIP) and 2,2 '-bipyridine (bpy) ligands [J] . Liu QY, Wang YL, Zhao J, European journal of inorganic chemistry . 2008,第7期

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Synthesis and magnetic properties of a tetranuclear copper(II) coordination compound constructed of a multi-carboxylate ligand and 2,2′-bipyridine

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