| 吡嗪四甲酸构筑的一维链状锰配位聚合物的合成、晶体结构及磁性研究 |
| Synthesis, Crystal Structure and Magnetic Research of 1D Chain Manganese Coordination Polymer Based on Pyrazine-2,3,5,6-tetracarboxylic Acid |
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| 摘要: MnCl2·4H2O与吡嗪-2,3,5,6-四甲酸(H4pztc),1,10-邻菲罗啉(phen)通过水热反应合成了1个Mn的配位聚合物{[Mn2(phen)2 (H2pztc)Mn2(phen)2(Hpztc)2(H2O)2]·4H2O}n (1),并对配合物进行了IR、元素分析、X-射线单晶结构解析及磁性分析等表征.配合物1属于三斜晶系,P1 空间群,a=0.955 02(19) nm,b=1.323 4(3) nm,c=1.515 7(3) nm,α=68.95(3)°,β=77.33(3)°,γ=81.92(3)°,V=1.740 3(6) nm3,Z=2.配合物中Mn(Ⅱ)离子为六配位和七配位,通过配体pztc与phen的连接形成一维链状结构.变温磁化率测试结果表明,在配合物1中,Mn(Ⅱ)离子之间存在反铁磁相互作用. |
| 关键词: 一维链 锰配合物 晶体结构 吡嗪-2,3,5,6-四甲酸 磁性 |
| 基金项目: 国家自然科学基金(No.21001071),河南省教育厅自然科学研究计划(No.2010A150018)资助项目. |
| Abstract: Coordination polymer {[Mn2(phen)2(H2pztc)Mn2(phen)2(Hpztc)2 (H2O)2]·4H2O}n (1) has been synthesized by the hydrothermal reaction of MnCl2·4H2O, pyrazine-2,3,5,6-tetracarboxylic acid (H4pztc) and 1,10-phenanthroline (phen), which were further characterized by IR, elemental analysis, X-ray diffraction single-crystal structural analysis and magnetic susceptibility. It belongs to triclinic crystal system, P1 space group with a=0.955 02(19) nm, b=1.323 4(3) nm, c=1.515 7(3) nm, α=68.95(3)°, β=77.33(3)°, γ=81.92(3)°, V=1.740 3(6) nm3, Z=2. The manganese(Ⅱ) ions in the complex are 6-coordinated and 7-coordinated. The Mn(Ⅱ) ions of complex 1 are connected by pztc and phen, resulting in a 1D chain. Variable temperature magnetic susceptibility measurements reveal the existence of antiferromagnetic interactions in the complex 1. CCDC: 694108. |
| Keywords: one-dimensional chain manganese(Ⅱ) complex crystal structure pyrazine-2,3,5,6-tetracarboxylic acid magnetic property |
| 投稿时间：2012-02-16 修订日期：2012-07-12 |
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| 翟滨,伊勇玲,韩楠楠,张向飞.吡嗪四甲酸构筑的一维链状锰配位聚合物的合成、晶体结构及磁性研究[J].无机化学学报,2012,28(12):2535-@. |
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