Spectral investigation of conjugated azomethines: A large palette of colors possible with acid and oxidant doping

被引：20
作者：
Bolduc, Andreanne [1 ]
Rivier, Lucie [1 ]
Dufresne, Stephane [1 ]
Skene, W. G. [1 ]
机构：
[1] Univ Montreal, Dept Chim, Lab Caracterisat Photophys Mat Conjugues, Montreal, PQ H3C 3J7, Canada
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2012年 / 132卷 / 2-3期
基金：
加拿大创新基金会; 加拿大自然科学与工程研究理事会;
关键词：
Reversible color change; Doping; Bathochromic shifts; Conjugated organic materials; ELECTROCHEMICAL CHARACTERIZATION; FLUORESCENCE DEACTIVATION; THIOPHENE; PHOTOPHYSICS; CONNECTIONS; COMONOMERS; KETYLIMINE; COMPLEXES; OLIGOMERS; POLYMERS;
D O I：
10.1016/j.matchemphys.2011.12.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The color transitions between the neutral and doped states of a series of heterocyclic azomethines were investigated in both thin films immobilized on glass substrates and in solution. Their doping and subsequent dedoping of the intermediate could easily be followed spectroscopically owing to their strong visible absorbance. With all the azomethines, spectral changes occurred when doped with trifluoroacetic acid and ferric chloride. Absorbance bathochromic shifts up to 250 nm were observed and these were contingent on the azomethine structure. Meanwhile, the doping was found to be fully reversible with no detectable azomethine decomposition. Reversible color changes were also possible with Lewis acids. The shift in the absorbance spectrum was contingent on the Lewis acid. (c) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：722 / 728
页数：7
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