| 基于[1,2,4]-三唑衍生物的两个镉(Ⅱ)配合物的结构与光谱学表征 |
| Crystal Structures and Spectroscopic Characterizations of Two Cd(Ⅱ) Complexes Based on [1,2,4]-triazole Derivatives |
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| 摘要: 合成了2个新的镉（Ⅱ）配合物{[Cd（Htta）2（H2O）2]·2H2O}n（1）和[Cd（tba）2（H2O）4]（2）（H2tta=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（Ⅱ）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。 |
| 关键词: 镉(Ⅱ)配合物 三唑 单晶结构 光谱 |
| 基金项目: 国家自然科学基金（No.21371151，21461029，21561033）和云南省重点实验室开放基金（No.ZK150007）资助项目。 |
| Abstract: 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. |
| Keywords: Cd(Ⅱ) complex triazole single-crystal structure spectrum |
| 投稿时间：2017-03-15 修订日期：2017-05-22 |
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| 王大伟,王滔,闫桐,杜琳,赵琦华.基于[1,2,4]-三唑衍生物的两个镉(Ⅱ)配合物的结构与光谱学表征[J].无机化学学报,2017,33(8):1443-1449. |
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