Schiff bases containing triphenylamine and pyrrole units: synthesis and electrochromic, acidochromic properties
作者： Yu Li , Yanhong Zhang , Haijun Niu , Cheng Wang , Chuanli Qin
DOI: 10.1039/C6NJ00321D
关键词: Electrochromism 、 Infrared spectroscopy 、 Chemistry 、 Electrochemistry 、 Pyrrole 、 Absorption (chemistry) 、 Redox 、 Photochemistry 、 Cyclic voltammetry 、 Triphenylamine
摘要: Five Schiff bases (SBs) containing pyrrole and different triphenylamine (TPA) moieties were synthesized the structures confirmed by infrared spectroscopy (IR) nuclear magnetic resonance (NMR) technique. SB1 exhibited intense fluorescence emission in contrast to SB2–SB5. The electrochemical behaviors of SBs investigated cyclic voltammetry (CV) SB2–SB5 redox stability with one well-defined reversible couple upon oxidation. On contrary, revealed two oxidation peaks reduction peak first CV curve, followed four couples steady-state curves. Electrochromic have been observed, accompanied a new absorption appearing obvious color change from pale yellow neutral form red form. SB1–SB5 also displayed sensitive acidochromic behaviors, linear dependence maximum wavelength as function pH values has observed which proved could be used alternative sensors given range.
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