Soluble and Green‐light‐emitting Oligo(9‐fluorenylideneacetic acid): Electrosynthesis and Characterization |
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| Authors: | Baoyang Lu Shuai Chen Jiong Wang Jingkun Xu Xuemin Duan Meishan Pei |
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| Affiliation: | 1. School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi 330013, China;2. School of Materials Science & Engineering, Shandong University, Jinan, Shandong 250061, China;3. School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, China |
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| Abstract: | A novel semiconducting oligo(9‐fluorenylideneacetic acid) (OFYA) with good redox activity and stability was successfully electrosynthesized by direct anodic oxidation of 9‐fluorenylideneacetic acid (FYA) in CH2Cl2 containing boron trifluoride diethyl etherate (BFEE) as the supporting electrolyte. The as‐formed OFYA film was readily soluble in dimethyl sulfoxide and tetrahydrofuran, and partly soluble in water, alcohol, acetonitrile and acetone. FT‐IR and 1H NMR spectra, together with computational results proved that FYA was probably polymerized through the coupling at C(2) and C(7) positions. Further, OFYA was a typical green light‐emitter with maximal emission at 555 nm and its fluorescence quantum yield was distinctly improved in comparison with that of the monomer. The oligomer was also studied by UV‐vis spectroscopy, MALDL‐TOF mass spectrometry, and thermal analysis, respectively. |
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| Keywords: | conducting polymers electrochemical polymerization 9‐fluorenylideneacetic acid polyfluorene green light‐emitter |
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