联二噻吩稠合的近红外BODIPY染料的合成与光谱性质

发布时间：2018-07-01 17:42

本文选题：氟硼二吡咯 + 联二噻吩　；参考：《无机化学学报》2017年04期

【摘要】：以叠氮乙酸乙酯和联二噻吩甲醛为原料,合成了联二噻吩并吡咯单体,之后在酸催化下与4-N,N-二甲基氨基苯甲醛缩合并与三氟化硼配位,得到一个新型的BODIPY染料SY。采用~1HNMR、质谱以及元素分析对其结构进行了表征。化合物SY在二氯甲烷中的最大吸收和发射波长分别为654和689nm;采用荧光光谱滴定方法研究了它对pH值的响应,酸性条件下N,N-二甲基苯氨基团发生质子化,抑制了光诱导电子转移对BODIPY母体的荧光淬灭,其溶液的荧光显著增强,染料SY可以作为近红外的pH值荧光探针。
[Abstract]:A new type of BODIPY dye SYDIPY was synthesized from ethyl azidoacetate and dithiophene formaldehyde as raw materials. After condensation with 4-NN- dimethyl aminobenzaldehyde and coordination with boron trifluoride under acid catalysis, a new type of BODIPY dye SYDIPY was synthesized. Its structure was characterized by 1H NMR, MS and elemental analysis. The maximum absorption and emission wavelengths of compound sy in dichloromethane were 654 and 689 nm, respectively. The fluorescence quenching of BODIPY matrix by photoinduced electron transfer was inhibited, and the fluorescence of the solution was enhanced significantly. The dye sy could be used as a near infrared pH fluorescence probe.
【作者单位】：天津出入境检验检疫局;南京大学化学化工学院;
【基金】：国家自然科学基金(No.21371090)资助项目
【分类号】：O657.3

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