Synthesis and chemosensory properties of triphenylamine-substituted conjugated polyfluorene containing a terminal di(2-picolyl)amine moiety

Yang Po-Chih; Wen Hua-Wen; He Hsiao-Jou

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Synthesis and chemosensory properties of triphenylamine-substituted conjugated polyfluorene containing a terminal di(2-picolyl)amine moiety

机译：三苯胺取代的缀合聚芴含有末端（2-吡酰基）胺部分的合成及化学感性特性

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This paper describes the synthesis of a triphenylamine-substituted alternating conjugated polyfluorene (PFAD) containing a pendant terminal di(2-picolyl) amine (DPA) group through the Heck coupling reaction. We examined the effect of DPA units on the sensory characteristics of fluorescent chemosensors. Photoluminescence titrations demonstrated that PFAD exhibited high sensitivity to Fe3+ ions. Furthermore, in a solution of tetrahydrofuran and water, a remarkable change was observed in the fluorescence color of PFAD, which had a Stern-Volmer constant of 1.30 x 103 M-1, from bright blue to dark upon adding Fe3+ ions. Because of the considerably high stability constant of the CN--Fe3+ complex, the fluorescence of the PFAD solution that was quenched by Fe3+ ions recovered upon the addition of trace CN- anions; the detection limit was as low as 1.08 x 10(-5) mol l(-1). PFAD exhibited a high fluorescence quantum yield (0.73), suggesting that it is a promising material for use in polymeric light-emitting diodes and as a chemosensor.

机译：本文描述了通过Heck偶联反应的含有侧链DI（2-吡啶基）胺（DPA）组的三苯胺取代的交替共轭多氟烯（PFAD）的合成。我们检查了DPA单位对荧光化学传感器感官特性的影响。光致发光滴定证明PFAD表现出对Fe3 +离子的高敏感性。此外，在四氢呋喃和水的溶液中，在PFAD的荧光颜色中观察到显着变化，其在加入Fe3 +离子时从鲜艳的蓝色到深色至黑暗。由于CN-Fe3 +复合物的相当高的稳定性常数，在添加痕量CN-阴离子时淬灭Fe3 +离子的PFAD溶液的荧光;检出限量低至1.08×10（ - 5）摩尔L（-1）。 PFAD表现出高荧光量子产率（0.73），表明它是用于聚合物发光二极管和化学传感器的有希望的材料。

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《RSC Advances》 |2015年第123期|共8页
作者
Yang Po-Chih; Wen Hua-Wen; He Hsiao-Jou;
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Yuan Ze Univ Dept Chem Engn &

Mat Sci Taoyuan 32003 Taiwan;

Yuan Ze Univ Dept Chem Engn &

Mat Sci Taoyuan 32003 Taiwan;

Yuan Ze Univ Dept Chem Engn &

Mat Sci Taoyuan 32003 Taiwan;

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正文语种 eng
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1. Synthesis and chemosensory properties of triphenylamine-substituted conjugated polyfluorene containing a terminal di(2-picolyl)amine moiety [J] . Yang Po-Chih, Wen Hua-Wen, He Hsiao-Jou RSC Advances . 2015,第123期

机译：三苯胺取代的缀合聚芴含有末端（2-吡酰基）胺部分的合成及化学感性特性
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Synthesis and chemosensory properties of triphenylamine-substituted conjugated polyfluorene containing a terminal di(2-picolyl)amine moiety

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