N-硝基苯基吡咯酰胺对阴离子识别研究  

Studies on Anions Recognition of N-Nitrophenyl-1H-pyrrole-2-carboxamide

作　　者：尹振明[1] 何家骐[1] 程津培[1] 

机构地区：[1]南开大学化学系元素有机化学国家重点实验室,天津300071

出　　处：《高等学校化学学报》2006年第5期871-874,共4页Chemical Journal of Chinese Universities

基　　金：国家重点基础发展规划项目(批准号:G2000078100);国家自然科学基金(批准号:200720207)资助

摘　　要：合成了2个N-硝基苯基吡咯酰胺阴离子识别主体.通过X射线单晶衍射确定了间位硝基取代物的结构,氢键及π-π相互作用在该化合物的组装过程中起到了决定性的作用.利用UV-V is光谱研究了这两个主体对常见无机阴离子的识别,结果表明,它们不仅对F-和H2PO4-离子有比较强的识别能力,而且在识别发生时还伴随着显著的颜色变化,因此这两个化合物都可作为阴离子的比色传感器.Molecular recognition of anion is currently an expanding area of research especially in the context of designing anion sensors. Herein, two nitrophenyl pyrrolic amide receptors, p-nitrophenyl-lH-pyrrole-2-carboxamide（1 ） and m-nitrophenyl-lH-pyrrole-2-carboxamide （2）, were synthesized by coupling pyrrole-2-carboxylic acid with nitroaniline in the presence of dicyclohexylcarbodiimide （DCC）. The structure of compound 2 was characterized by X-ray crystallography. It is revealed that hydrogen bonding interaction and π-π stacking played an important role in the self-assembly of compound 2. The anions recognition of the two compounds were studied by the UV-Vis method in highly polar solvent of DMSO. Both compounds show a significant color change when F^- and H2PO4^- were added indicating they would be new colorimetric sensors for the two anions.

关 键 词：硝基吡咯酰胺 晶体结构 阴离子识别 

分 类 号：O625[理学—有机化学]