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Synthesis of pyridine-bridged bisferrocene and its pH value adjustable photoelectric properties
Tetrahedron ( IF 2.1 ) Pub Date : 2020-02-19 , DOI: 10.1016/j.tet.2020.131054
Jingjing Ma , Yali Zhai , Jiahui Chen , Xiang Zhou , Weimin Shi , Jianye Zhang , Gaiping Li , Hong wei Hou

Four bisferrocenyl pyridine derivatives 2, 6-bis (ferrocenylethynyl) pyridine (3), 2, 6-bis (ferrocenylbutadiynyl) pyridine (8), 2, 6-bis (ferrocenylhexyltriynyl) pyridine (9), 2, 5-bis (ferrocenylbutadiynyl) pyridine (14) have been synthesized and photoelectric properties of these compounds were investigated. UV–Vis spectroscopic, third-order nonlinear optical property and electrochemical studies revealed that the photoelectric properties of these compounds would change significantly by adjusting pH. Compared with neutral conditions, lower-energy metal-to-ligand charge transfer (MLCT) transition was stronger, the oxidation potential shift negatively, a luminescence increase and third-order nonlinear optical properties were stronger under acidic conditions.



中文翻译:

吡啶桥联的二茂铁的合成及其pH值可调的光电性能

四个茂铁基吡啶衍生物2,6-双(ferrocenylethynyl)吡啶(3),2,6-双(ferrocenylbutadiynyl)吡啶(8),2,6-双(ferrocenylhexyltriynyl)吡啶(9),2,5-双(ferrocenylbutadiynyl )吡啶(14)合成并研究了这些化合物的光电性能。UV-Vis光谱,三阶非线性光学性质和电化学研究表明,通过调节pH值,这些化合物的光电性质将发生显着变化。与中性条件相比,在酸性条件下,低能金属向配体的电荷转移(MLCT)跃迁更强,氧化电势负向移动,发光度增加,并且三阶非线性光学性质更强。

更新日期:2020-02-20
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