用两种方法从便宜的原料N-苯基邻氨基苯甲酸出发,合成了新型的,具有荧光活性的吖啶衍生物9-(1-氮杂环丁基)吖啶Ⅲ。用核磁1 H NMR、13 C NMR、高分辨质谱HR MS以及熔点等手段,对每种化合物或者中间体,进行了必要的结构表征。并通过紫外...用两种方法从便宜的原料N-苯基邻氨基苯甲酸出发,合成了新型的,具有荧光活性的吖啶衍生物9-(1-氮杂环丁基)吖啶Ⅲ。用核磁1 H NMR、13 C NMR、高分辨质谱HR MS以及熔点等手段,对每种化合物或者中间体,进行了必要的结构表征。并通过紫外滴定法、荧光滴定法等手段,结合溴乙锭荧光探针等实验,得出了化合物Ⅲ与DNA以嵌插模式结合,并计算得到了相应的结合常数,结合位点。展开更多
A novel N-（2-hydroxy-5-chlorodibenzophenone）-N＇-[2-hydroxy-5-azophenyl-benzaldehyde]- 1,2-diaminobenzene receptor has been synthesized by simple steps with good yields. The anion recognition properties were studied...A novel N-（2-hydroxy-5-chlorodibenzophenone）-N＇-[2-hydroxy-5-azophenyl-benzaldehyde]- 1,2-diaminobenzene receptor has been synthesized by simple steps with good yields. The anion recognition properties were studied by ultraviolet-visible spectroscopy. The results showed that the receptor had a higher affinity to F-, AcO-, and H2PO4-, but no evident binding with Cl-, Br-, and l-. Upon addition of the three former anions to the receptors in DMSO, the solution exhibited an obvious color change from colorless to yellow, which could be observed by the naked eye, thus the receptor could act as a fluoride ion sensor even in the presence of other halide ions. The UV-Vis data indicates that a 1：1 stoichiometric complex is formed through hydrogen bonding interactions between receptor and anions.展开更多
文摘用两种方法从便宜的原料N-苯基邻氨基苯甲酸出发,合成了新型的,具有荧光活性的吖啶衍生物9-(1-氮杂环丁基)吖啶Ⅲ。用核磁1 H NMR、13 C NMR、高分辨质谱HR MS以及熔点等手段,对每种化合物或者中间体,进行了必要的结构表征。并通过紫外滴定法、荧光滴定法等手段,结合溴乙锭荧光探针等实验,得出了化合物Ⅲ与DNA以嵌插模式结合,并计算得到了相应的结合常数,结合位点。
基金ACKNOWLEDGMENTSV. ACKNOWLEDGMENTS This work is supported by the Natural Science Foundation of Universities of Inner Mongolia Autonomous Region （No.NG09168） and the Star-up fund of Nanjing University （No.163101026）.
文摘A novel N-（2-hydroxy-5-chlorodibenzophenone）-N＇-[2-hydroxy-5-azophenyl-benzaldehyde]- 1,2-diaminobenzene receptor has been synthesized by simple steps with good yields. The anion recognition properties were studied by ultraviolet-visible spectroscopy. The results showed that the receptor had a higher affinity to F-, AcO-, and H2PO4-, but no evident binding with Cl-, Br-, and l-. Upon addition of the three former anions to the receptors in DMSO, the solution exhibited an obvious color change from colorless to yellow, which could be observed by the naked eye, thus the receptor could act as a fluoride ion sensor even in the presence of other halide ions. The UV-Vis data indicates that a 1：1 stoichiometric complex is formed through hydrogen bonding interactions between receptor and anions.
