| 2，2′-二甲氧基-4，4′-联苯二甲酸铜配合物的合成、晶体结构及性质研究(英文) | |
| Synthesis, Crystal Structure and Properties of a Copper(Ⅱ) Complex with 2,2′-Dimethoxy-4,4′-biphenyldicarboxylic Acid | |
| 摘要: 以2,2′-二甲氧基-4,4′-联苯二甲酸(H2L)为配体，采用溶剂热法合成了1个二维结构的铜配合物[Cu4L4(H2O)9]·10H2O (1)。借助IR，TGA，粉末和单晶X-射线衍射对其进行了表征。单晶结构分析表明1属于正交晶系，Pnma空间群，晶胞参数a=1.493 9(3) nm，b=3.051 6(6) nm，c=1.569 4(3) nm。在1的结构中存在4个晶体学不同的四方锥构型铜离子，3个水分子桥连4个铜离子形成一条锯齿形短链，短链间以配体相连为二维层，层间通过分子间氢键形成了三维超分子结构。热重分析表明1在295 ℃开始发生分解。变温磁化率显示1的铜离子间存在弱的反铁磁性。 | |
| 关键词: 铜(Ⅱ)配合物 晶体结构 磁性 | |
| 基金项目: | |
| Abstract: A copper(Ⅱ) complex, [Cu4L4(H2O)9]·10H2O (1), (H2L=2,2′-dimethoxy-4,4′-biphenyldicarboxylic acid), was synthesized and characterized by FT-IR, TGA, powder and single crystal XRD. The complex crystallizes in orthorhombic system with space group Pnma, a=1.493 9(3) nm, b=3.051 6(6) nm, c=1.569 4(3) nm, V=7.154(2) nm3, Z=4 with final R=0.040 6. The complex contains four crystallographically distinct Cu(Ⅱ) ions and each Cu(Ⅱ) ions locates in a square-pyramid environment. Three μ2-bridging water molecules connect the four Cu(Ⅱ) ions to form a short zigzag chain which is further joined by the L ligands to generate a 2D layer. A lot of hydrogen bonds assemble the 2D layer into a 3D supramolecular structure. The TG analysis shows that the complex is stable below 295 ℃. Magnetic susceptibility measurement indicates that there is a weak antiferromagnetic exchange coupling between the Cu(Ⅱ) ions. CCDC: 872818, 1. | |
| Keywords: copper(Ⅱ) complex crystal structure magnetism | |
| 摘要点击次数: 1797 | |
| 全文下载次数: 1975 | |
| 徐 恒,龚 军,麻钧涵,许 岩,沈 旋,朱敦如.2，2′-二甲氧基-4，4′-联苯二甲酸铜配合物的合成、晶体结构及性质研究(英文)[J].无机化学学报,2012,28(10):2229-2235. | |
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