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合成了一维聚合物[Cu(NAA)2]n(HNAA=α-萘乙酸),采用单晶X-射线、FTIR和元素分析对生成的晶体进行了结构表征。该聚合物属于正交晶系,Pbcn空间群,a=3.077 2(3)nm,b=1.272 56(11)nm,c=1.023 51(9)nm,V=4.008 0(6)nm3,Z=8。Cu髤的配位几何构型是五配位的扭曲四方锥,配体的羧基采用μ2-η1∶η1和μ3-η2∶η1两种不同的桥联配位模式,连结Cu髤离子形成1D链,1D链又被C-H-π作用力进一步连结形成2D层和3D固态超分子结构。磁性研究表明:在该聚合物中,相邻铜离子间存在反铁磁偶合作用。还对其热稳定性进行了研究。
The synthesized one-dimensional polymer [Cu (NAA) 2] n (HNAA = α-naphthaleneacetic acid) was synthesized and characterized by single crystal X-ray diffraction, FTIR and elemental analysis. The polymer belongs to orthorhombic, Pbcn space group, a = 3.077 2 (3) nm, b = 1.272 56 (11) nm, c = 1.023 51 (9) nm, V = 4.008 0 = 8. The coordination geometry of Cu 髤 is a five-coordinate distorted tetragon. The carboxyl of the ligand adopts two different bridging coordination modes, μ2-η1:η1 and μ3-η2:η1, which connect Cu 髤 ions to form 1D chain , The 1D chain is further linked by the CH-π force to form a 2D layer and a 3D solid state supramolecular structure. Magnetic studies show that: in the polymer, there is antiferromagnetic coupling between adjacent copper ions. Its thermal stability has also been studied.