摘要
合成了2个新的镉髤配合物{[Cd(Htta)_2(H_2O)_2]·2H_2O}n(1)和[Cd(tba)_2(H_2O)_4](2)(H_2tta=2-[1,2,4]-三唑对苯二甲酸,Htba=3-[1,2,4]-三唑苯甲酸),配合物分子结构经X射线单晶衍射分析确认。对配合物1和2进行了X射线粉末衍射、红外光谱、紫外光谱和固体荧光光谱表征。X射线单晶衍射测试表明,配合物1为一维双链高分子聚合物,2为单核零维配合物,中心镉髤离子均采取六配位八面体配位构型。配合物1通过分子间丰富的氢键作用进一步组装成三维超分子结构,配合物2则通过分子间氢键和π-π堆积作用组装成三维超分子结构。固体荧光光谱显示,配合物1和2分别在437和357 nm处有强的荧光发射峰。
Two new complexes {[Cd（Htta）2（H2O）2]2H2O}n （1） and [Cd（tba）2（H2O）4] （2） （H2tta=2-[1,2,4]-Triazol-1-yl-terephthalic acid, Htba=3-[1,2,4]-triazol-1-yl-benzoic acid） have been synthesized and structurally characterized by single-crystal X-ray diffraction. Powder X-ray diffraction, IR, UV and luminescence properties of complexes 1 and 2 were also determined. Single crystal X-ray diffraction shows that complex 1 is a 1D double chain coordination polymer with a six coordinated central Cd（Ⅱ） ion in octahedral coordination geometry, while 2 is a six coordinated mononuclear complex. For complex 1, 3D supramolecular framework is constructed by intermolecular hydrogen bonds between different chains, while complex 2 is further extended into 3D framework via intermolecular hydrogen bonds and π-π stacking interactions. The solid state luminescence spectra of 1 and 2 show strong emission bands centered at 437 and 357 nm, respectively.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2017年第8期1443-1449,共7页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金(No.21371151
21461029
21561033)
云南省重点实验室开放基金(No.ZK150007)资助项目
关键词
镉(Ⅱ)配合物
三唑
单晶结构
光谱
Cd（Ⅱ） complex triazole single-crystal structure spectrum
