镉/铅超分子配合物的合成、晶体结构及理论计算 |
Syntheses, Crystal Structures and Theoretical Calculation of Cadmium/Lead Supramolecular Coordination Compounds |
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摘要: 通过水热法合成了2个新的金属-有机超分子配合物[CdCl2(L1)]n(1)和[Pb(BDC)0.5(HBDC)(L2)]·2H2O(2)(H2BDC=对苯二甲酸,L1=2-(4-氨基苯酚)-1H-咪唑并[4,5-f]菲咯啉,L2=2-(4-N,N'-二甲基苯)-1H-咪唑并[4,5-f]菲咯啉)。并对其进行了元素分析、红外光谱、热重、荧光光谱和X射线单晶衍射测定。配合物1是一维链状结构,配合物2为零维结构,它们均通过氢键和π-π堆积形成了三维超分子结构。此外,还用高斯09程序PBE0/LANL2DZ方法对配合物1和2进行了自然键轨道(NBO)分析,计算结果表明配位原子与Cd(Ⅱ)、Pb(Ⅱ)离子之间存在着共价作用。 |
关键词: 水热合成 晶体结构 镉配合物 铅配合物 自然键轨道 |
基金项目: 吉林省科技发展计划(No.201205080)资助项目。 |
Abstract: Two new metal-organic supramolecular coordination compounds[CdCl2(L1)]n (1) and[Pb(BDC)0.5(HBDC)(L2)]·2H2O (2) (H2BDC=terephthalic acid, L1=2-(4-aminophenol)-1H-imidazo[4,5-f] [1,10]phenanthroline, L2=2-(4-N,N'-dimethylbenzene)-1H-imidazo[4,5-f] [1,10]phenanthroline) have been hydrothermally synthesized and struc-turally characterized by elemental analysis, IR spectrum, TG, fluorescence spectrum and single-crystal X-ray diffraction. Complex 1 is one-dimensional chain-like structure, and complex 2 exhibits zero-dimensional framework. They all display three-dimensional supramolecular network via hydrogen bonding and π-π stacking interactions. In addition, we analyzed natural bond orbital (NBO) of 1 and 2 in using the PBE0/LANL2DZ method built in Gaussian09 program. The calculation results showed the obvious covalent interaction between the coordinated atoms and Cd(Ⅱ), Pb(Ⅱ) ion. |
Keywords: hydrothermal synthesis crystal structure cadmium complex lead complex natural bond orbital |
投稿时间:2017-05-21 修订日期:2017-11-07 |
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刘宏,李传碧,李国峰,李秀梅,潘亚茹.镉/铅超分子配合物的合成、晶体结构及理论计算[J].无机化学学报,2018,34(1):161-169. |
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