以3-硝基邻苯二甲酸根构建的环状双核Zn(Ⅱ), Cd(Ⅱ)配合物的合成及晶体结构 |
Synthesis, Crystal Structures of Cyclic Dinuclear Zn(Ⅱ) and Cd(Ⅱ) Complexes with 3-Nitrophthalic Acid |
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摘要: 以3-硝基邻苯二甲酸和咪唑及2,2’-联吡啶为配体构筑了2种配合物[Zn2(npa)2(Im)4](1)和[Cd2(npa)2(2,2’-bipy)2(H2O)2]·2H2O(2)(npa2-=3-硝基邻苯二甲酸根,Im=咪唑,2,2’-bipy=2,2’-联吡啶)。用元素分析、红外光谱对其进行了表征,并用单晶X-射线衍射测定了配合物的晶体结构;测定了配合物1和2的热稳定性。2个配合物均为双核分子,具有M2C8O4十四元大环结构。配合物1的双核单元通过分子间氢键形成3D网络结构,配合物2的双核单元通过分子间氢键和π-π堆积形成2D层状结构。 |
关键词: 3-硝基邻苯二甲酸 咪唑 2, 2’-联吡啶 锌 镉 晶体结构 |
基金项目: 江西省自然科学(青年)基金(No.20132BAB213002);江西省科技支撑项目(No.20112BBF60023);人事部留学人员科技活动项目择优资助(启动类);教育部高校博士点专项基金(No.20113603120006);江西省教育厅基金(No.GJJ12252,No.GJJ12254)资助项目。 |
Abstract: Two complexes [Zn2(npa)2(Im)4] (1) and [Cd2(npa)2(2,2'-bipy)2(H2O)2]·2H2O (2) (H2npa=3-nitrophthalic acid, Im=imidazole, 2,2'-bipy=2,2'-bipyridine) were constructed by the use of 3-nitrophthalic acid and imidazole or 2,2'-bipyridine, respectively. The complexes were characterized by elemental analysis, IR, and the crystal structures were determined by single X-ray diffraction. The thermal stabilities of the complexes were studied by thermal gravimetric analysis. The two complexes are dinuclear structures, and both contain M2C8O4 14-membered rings. The dinuclear units extend to 3D network through intermolecular hydrogen bonding interactions for complex 1, while a 2D sheet structure is formed for complex 2 by hydrogen bonding and π-π stacking interactions. |
Keywords: 3-nitrophthalic acid imidazole 2,2’-bipyridine Zn2+ Cd2+ crystal structure |
投稿时间:2013-10-07 修订日期:2013-12-18 |
摘要点击次数: 1882 |
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袁厚群,胡春燕,鲍光明,肖伟,孙婷婷,邢永恒.以3-硝基邻苯二甲酸根构建的环状双核Zn(Ⅱ), Cd(Ⅱ)配合物的合成及晶体结构[J].无机化学学报,2014,30(5):1195-1200. |
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