N-邻硝基苯基-N′-2,4-二硝基苯基氨基脲的阴离子识别  

Anion Recognition of N-o-nitrophenyl-N′-2,4-bis-nitro-phenylaminourea

作　　者：林海[1] 李亚巍[2] 林华宽[2] 

机构地区：[1]南开大学教育部功能高分子材料重点实验室,天津300071 [2]南开大学化学系,天津300071

出　　处：《南开大学学报（自然科学版）》2017年第1期64-71,85,共9页Acta Scientiarum Naturalium Universitatis Nankaiensis

基　　金：国家自然科学基金(20671052)

摘　　要：设计合成了2个新型含内氢键阴离子识别受体N-邻硝基苯基-N′-2,4-二硝基苯基氨基脲(1)和N-邻硝基苯基-N′-4-硝基苯基氨基脲(2).利用核磁、质谱和元素分析等手段对这2个受体进行表征,利用紫外-可见光谱、荧光光谱、核磁滴定和裸眼识别进行了这2个受体对Ac O-、F-、H2PO4-、Cl-、Br-、I-等6种阴离子识别性能的研究.结果表明,这2个受体对Ac O-比其他阴离子具有较好的识别能力和选择性.受体1较受体2具有更强识别能力和选择性.Two novel anion recognition receptors, N-o-nitrophenyl-N′-2,4-bis-nitrophenylaminourea（1） and N-o-nitrophenyl-N′-4-nitrophenylaminourea（2）, owning inner hydrogen band were designed andsynthesized. The two receptors have been characterized by NMR, ESI-M and elemental analysis,respectively. The anion recognition properties of the two receptors with Ac O-、F-、H2PO4-、Cl-、Br-、I-has been investigated with UV-vis, fluorescence,1H NMR, and bare eye, respectively. The results indicated that the two receptors have higher recognition ability and higher selectivity for Ac O-than those of other anions. Receptor 1 has higher recognition ability and higher selectivity than those of receptor 2.

关 键 词：N-邻硝基苯基-N′-2 4-二硝基苯基氨基脲 N-邻硝基苯基-N′-4-硝基苯基氨基脲 紫外-可见 荧光 阴离子识别 

分 类 号：O626.23[理学—有机化学]