| 含咪唑基配体镉配位聚合物的合成、结构及荧光性质 |
| Syntheses, Crystal Structures and Fluorescence Properties of Cadmium Coordination Polymers with 1,3,5-Tris(imidazol-1-ylmethyl)benzene |
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| 摘要: 利用柔性含咪唑基配体1,3,5-三(咪唑-1-甲基)苯(L)与硫酸镉在溶剂热条件下反应,通过反应条件控制得到了2个配位聚合物{[Cd(L)(EG)0.5(H2O)(SO4)]·EG·H2O}n(1)和[Cd(L)(EG)(SO4)]n(2)(EG=乙二醇)。并利用元素分析、红外光谱、X射线单晶衍射等方法对其进行了表征。配合物1中配体L连接Cd(Ⅱ)形成一维链状结构,而配合物2中配体L与Cd(Ⅱ)配位形成二维网状结构,并进一步通过硫酸根桥联形成三维结构。有趣的是,EG分子在配合物1中连接链内的2个Cd(Ⅱ),而在配合物2中作为端基与1个Cd(Ⅱ)配位,硫酸根离子在1中作为端基配位,而在2中则以桥联方式连接2个Cd(Ⅱ)。研究了配合物的荧光性质及其热稳定性。 |
| 关键词: 镉配合物 配位聚合物 晶体结构 荧光性质 |
| 基金项目: 南京科技职业学院科研资金(No.NHKY-2013-10)资助项目。 |
| Abstract: Two new coordination polymers, {[Cd(L)(EG)0.5(H2O)(SO4)]·EG·H2O}n (1) and [Cd(L)(EG)(SO4)]n (2) (EG=ethylene glycol), were solvothermally synthesized by reactions of flexible imidazole-containing ligand 1,3,5-tris(imidazol-1-ylmethyl)benzene (L) with cadmium sulfate under different reaction conditions. The complexes were characterized by elemental analysis, IR and single crystal X-ray diffraction. Ligand L links Cd(Ⅱ) to form 1D chain in 1 while in 2 the ligand L coordinates with Cd(Ⅱ) to give 2D network, which is further connected by sulfate anions to generate 3D structure. Interestingly, each EG connects two intra-chain Cd(Ⅱ) atoms in 1 and acts as terminal ligand in 2. The sulfate anion acts as terminal ligand in 1 and bridging one in 2. The fluorescence properties of the complexes was investigated. CCDC: 1430130, 1; 1430131, 2. |
| Keywords: cadmium(Ⅱ) complex coordination polymers crystal structure fluorescence property |
| 投稿时间：2015-10-08 修订日期：2015-11-19 |
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| 钟开龙,罗莉.含咪唑基配体镉配位聚合物的合成、结构及荧光性质[J].无机化学学报,2016,32(2):275-279. |
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