| 二维配位聚合物[Cu(anol)(μ1,3-N3)]n的合成、晶体结构及磁性 |
| Synthesis, Crystal Structure and Magnetic Properties of a New 2D Coordination Polymer [Cu(anol)(μ1,3-N3)]n |
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| 摘要: 合成了一个结构新颖的二维Cu(Ⅱ)配位聚合物[Cu2(anol)2(μ1,3-N3)2]n(anol=2-氨基乙醇)，通过X-射线单晶衍射确定了其晶体结构。晶体属单斜晶系，P21/n空间群，晶胞参数 a=0.838 06(17) nm，b=0.773 55(15) nm，c=0.853 49(17) nm，β=113.26(3)°。配体2-氨基乙醇以双齿模式配位，其配位原子包括醇羟基氧原子和氨基氮原子。在[Cu2(anol)2(μ1,3-N3)2]单元中，Cu(Ⅱ)离子通过2个μ1,1桥联方式配位的醇羟基氧原子相连，形成一个双核单元；单元之间以叠氮根离子EE桥联方式连接Cu(Ⅱ)离子形成二维网格状结构。变温磁化率测定结果表明，在配合物中，Cu(Ⅱ)离子之间存在反铁磁相互作用。 |
| 关键词: Cu(Ⅱ)配合物 配位聚合物 晶体结构 磁性 |
| 基金项目: |
| Abstract: A 2D copper(Ⅱ) coordination polymer [Cu(anol)( μ1,3-N3)]n containing 2-aminoethanol (anol) and azide bridg-ing ligands, has been synthesized and characterized by single crystal X-ray diffraction and magnetic susceptibil-ity. Crystal data for [Cu(anol)( μ1,3-N3)]n: monoclinic system, space group P21/n, a=0.838 06(17) nm, b=0.773 55(15) nm, c=0.853 49(17) nm, β=113.26(3)°, V=0.508 32(17) nm3, Z=4. The 2-aminoethanol ligands are coordinated on the bidentate coordination mode with a nitrogen atom of the amino and an oxygen atom of the hydroxyl. The two Cu(Ⅱ) ions are bridged by the two oxygen atoms of 2-aminoethanols and the binuclear [Cu2(anol)2] unit are formed. The binuclear units are linked through EE-azide groups and resulting a 2D network. Variable temperature magnetic susceptibility measurements in the temperature range 2~300 K reveal the existence of antiferromagnetic couplings in the network. CCDC: 724117. |
| Keywords: copper complex coordination polymer crystal structure magnetic property |
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| 刘娜仁,梁胜利,韩纬华,刘志亮.二维配位聚合物[Cu(anol)(μ1,3-N3)]n的合成、晶体结构及磁性[J].无机化学学报,2009,25(10):1858-1863. |
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