| 以吡嗪四甲酸为配体的配合物的合成及表征 |
| Syntheses and Characterizations of Two Complexes with Pyrazine-2,3,5,6-tetracarboxylic Acid |
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| 摘要: 合成了两种金属配合物{[Cu2(pztc)(4,4'-bpy)(H2O)4]·6H2O}n (1),{(H2bpe)[Cd(pztc)(H2O)2]·2.5H2O}n (2)(H4pztc=吡嗪-2,3,5,6-四甲酸,bpy=4,4'-联吡啶,bpe=1,2-二(4-吡啶基)乙烯),测定了其晶体结构,并对其进行了红外光谱、荧光光谱和热重分析等表征。两种配合物均为二维层状结构,但其中吡嗪四酸的配位方式不同。配合物2具有蓝色的荧光,最大荧光发射峰在475 nm。测试了配合物1的电子顺磁共振谱,结果显示Cu2+的特征谱带。 |
| 关键词: 吡嗪-2,3,5,6-四甲酸 二维结构 荧光光谱 电子顺磁共振 |
| 基金项目: 国家自然科学基金(No.21271137,21473121),教育部先进能源材料化学重点实验室开放基金(南开大学)资助项目。 |
| Abstract: Two complexes with pyrazine polycarboxylic acid, namely {[Cu2(pztc)(4,4'-bpy)(H2O)4]·6H2O}n (1), {(H2bpe)[Cd(pztc)(H2O)2]·2.5H2O}n (2), (H4pztc=pyrazine-2,3,5,6-tetracarboxylic acid, bpe=1,2-bis(4-pyridyl)ethane, 4,4'-bpy=4,4'-bipyridine), have been prepared by modifying the reaction conditions at room temperature and characterized by IR, elemental analysis, thermal gravimetric analysis, fluorescence measurement and single crystal X-ray diffraction analysis. The structures of two complexes are two-dimensional (2D) networks, but H4pztc has different connection modes in 1 and 2. Complex 2 shows good luminescence properties in solid state at room temperature. Electron Paramagnetic Resonance (EPR) spectra of complex 1 is studied. CCDC: 1039147, 1; 1039296, 2. |
| Keywords: pyrazine polycarboxylic ligand two-dimensional network fluorescent property electron paramagnetic resonance spectra |
| 投稿时间：2015-03-19 修订日期：2015-05-19 |
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| 高洪苓,毕艳霞,张琴琴,崔建中.以吡嗪四甲酸为配体的配合物的合成及表征[J].无机化学学报,2015,31(8):1603-1608. |
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