【摘 要】
：
本文以荧光分子2-(2′-吡啶基)苯并咪唑(2-PBI)作为1,1′-联(2-芳杂环)类化合物模型,研究利用其2,2′-N原子螯合Zn2+诱导芳环共面化和荧光发射红移实现Zn2+比例计量检测的可
【机 构】
：
南京大学化学化工学院配位化学国家重点实验室,
论文部分内容阅读
本文以荧光分子2-(2′-吡啶基)苯并咪唑(2-PBI)作为1,1′-联(2-芳杂环)类化合物模型,研究利用其2,2′-N原子螯合Zn2+诱导芳环共面化和荧光发射红移实现Zn2+比例计量检测的可行性。2-PBI在不同体系中的Zn2+荧光响应行为表明Zn2+结合将导致最大发射波长明显红移(乙腈36nm;HEPES缓冲液39nm),具有比例计量型Zn2+荧光探针的基本特点。2-PBI还具有显著的Zn2+荧光响应选择性,可以同时作为构建比例计量型探针的信号团和受体的基本骨架。通过对2-BPI的荧光机制和Zn2+识别行为的分析,提出了以2-PBI为基本骨架构建实用化比例计量型探针的途径。
In this paper, the fluorescent molecule 2- (2’-pyridyl) benzimidazole (2-PBI) is used as the 1,1’-linked (2-aromatic heterocyclic) Zn2 + -induced aromatic ring co-planarization and fluorescence emission red-shift to achieve the feasibility of Zn2 + ratio measurement. The Zn2 + fluorescence response of 2-PBI in different systems showed that the combination of Zn2 + will result in a red-shift of the maximum emission wavelength (acetonitrile 36nm; HEPES buffer 39nm), with the basic characteristics of the proportional metered Zn2 + fluorescent probe. 2-PBI also has significant Zn2 + fluorescence response selectivity and can serve as both a basic backbone for the signaling groups and receptors that make up the scale-based probes. Through the analysis of the fluorescence mechanism of 2-BPI and the identification of Zn2 +, we put forward a way to construct a practical proportional measurement probe based on 2-PBI.
其他文献
A new approach to the facile synthesis of 2-substituted-quinazolin-4(3H)-ones and its derivatives using the condensation reaction of substituted 2-aminobenzamid
γ-Amino butyric acid (GABA) and proline play a crucial role in protecting plants during various environmental stresses.Their synthesis is from the common precu
A new homologous series of isoflavone-based ethers, 7-(4-bromoalkyloxy)-3-(4'-decyloxyphenyl)-4H-1-benzopyran-4-ones were synthesized and characterized. The mes
Lead nanotapes were synthesized in liquid ammonia solvent in the presence of sodium metal at low temperature. The process was template free. Transmission electr
A novel waterborne stilbene-based polyurethane fluorescent brightener dispersion WPU-VBL was synthesized by incorporating chemically disodium 4,4'-bis[(4-anilin
A novel phosphorescent cyclometalated platinum dimer with bis-[2-(p-dodecyloxyphenyl) pyridyl]-hexane-l,6-diol as ligand and 1,3-( 1-n-hexyl,3-n-heptadecyl) dik
超分子化合物是通过2个以上的物质经弱相互作用形成的有序分子聚集体[1].配位化合物中的许多弱化学键,如氢键、偶极、疏水缔合和芳环堆砌等是构筑超分子化合物的重要因素,作
溶液法合成了一个新的铕配位聚合物[Eu(2,4-DCIBA)3(CH3CH2OH)2],(2,4-DClBA=2,4.二氯苯甲酸根),并用X-射线单晶衍射分析确定了其晶体结构.配合物晶体属于三斜晶系,P1空间群.
以高活性、低熔点金属锂为还原剂,在惰性气氛保护下分别将一氧化硅和氧化亚锡还原为单质硅和锡。通过调节球磨参数并加入适量助磨剂有效抑制因金属锂熔化导致的物料结块现象,
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7