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(Ⅱ)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(Ⅱ)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.%A copper(Ⅱ) coordination polymer,[Cu(NAA)2]n (HNAA=α-naphthylacetic acid) was synthesized and structurally characterized by means of X-ray single-crystal diffraction,IR spectrum and elemental analysis.It crystallizes in orthorhombic space group Pbcn with a=3.077 2(3),b=1.272 56(11),c=1.023 51(9) nm,V=4.008 0(6)nm3,Z=8.The coordination geometry of Cu(Ⅱ) is a distorted square-pyramid.Carboxylate groups take two kinds of bridging coordination modes:μ2-η1∶η1 andμ3-η2∶η1,resulting in infinite zigzag 1D chains.These 1D chains are connected together to form layer and 3D stacking framework by C-H-π interactions between naphthyl rings.Magnetic measurement of the polymer shows that a strong antiferromagnetic coupling can be observed.The thermal stable property of the polymer was also investigated.CCDC:835977.
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