Uncovering Integrated Dual-State ESIPT-Conductivity, Redox-Capacity, and Opto-Electronic Responses Toward Hg(II)/ Cr(III) of Aliphatic Fluorescent Polymers.

IF 4.2 3区 化学 Q2 POLYMER SCIENCE
Md Hussain Sanfui, Nadira Hassan, Shrestha Roy, Deepak Chowdhury, Preetam Nandy, Mincheol Chang, Mostafizur Rahaman, Narendra Nath Ghosh, Swapan Majumdar, Pijush Kanti Chattopadhyay, Dilip K Maiti, Nayan Ranjan Singha
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引用次数: 0

Abstract

Excited-state intramolecular proton transfer (ESIPT)-associated dual-state emissive aliphatic dual-light emitting conducting polymers (DLECPs) having oxidation-reduction capacities are prepared polymerizing 2-acrylamido-2-methylpropane-1-sulfonic acid, methacrylic acid, and 2-methyl-3-(N-(2-methyl-1-sulfopropan-2-yl)acrylamido)propanoic acid monomers. Of as-synthesized DLECPs, nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) spectroscopies, fluorescent enhancements (I/I0), and computational investigation indicate intriguing photophysical features in DLECP3 (optimum composition). In DLECP3, ─CONH─, ─CON<, and ─COOH subluminophores are recognized by density-functional theory (DFT)/time-dependent-DFT calculations and experimental investigations. ESIPT-associated dual-state emission/conductivity, aggregation-enhanced emissions, selective opto-electronic responses toward Hg(II)/Cr(III) at 437/574 nm, and redox properties of DLECP3 are supported by solid-state/solution spectroscopies, time-correlated single photon counting (TCSPC) measurements, dual-state excitation dependent emissions, microscopic images, electrochemical measurements, and DFT calculations. Here, preferential interaction of Hg(II)/Cr(III) with DLECP3 (amide)/DLECP3 (imidol) and reduction/oxidation of Hg(II)/Cr(III) to Hg(I)/Cr(VI) are substantiated by UV-vis, FTIR, and X-ray photoelectron spectroscopies; TCSPC measurements; NMR-titration; electrochemical studies; alongside computational calculations. The proton-electrical conductivities of DLECP3, Hg(II/I)-DLECP3, and Cr(III/VI)-DLECP3 in solids/solutions are 15.27 × 10-5/6.16 × 10-5, 19.60 × 10-5/25.52 × 10-5, and 26.69 × 10-5/27.60 × 10-5 S cm-1, respectively.

揭示脂肪族荧光聚合物对汞(II)/铬(III)的综合双态 ESIPT-电导率、氧化还原能力和光电响应。
通过聚合 2-丙烯酰胺基-2-甲基丙烷-1-磺酸、甲基丙烯酸和 2-甲基-3-(N-(2-甲基-1-磺丙烷-2-基)丙烯酰胺基)丙酸单体,制备了具有氧化还原能力的激发态分子内质子转移(ESIPT)相关双态发光脂肪族双发光导电聚合物(DLECPs)。在合成的 DLECPs 中,核磁共振(NMR)和傅立叶变换红外光谱(FTIR)、荧光增强(I/I0)和计算研究表明,DLECP3(最佳成分)具有耐人寻味的光物理特征。在 DLECP3 中,-CONH─、-CON-5/6.16 × 10-5、19.60 × 10-5/25.52 × 10-5 和 26.69 × 10-5/27.60 × 10-5 S cm-1。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Macromolecular Rapid Communications
Macromolecular Rapid Communications 工程技术-高分子科学
CiteScore
7.70
自引率
6.50%
发文量
477
审稿时长
1.4 months
期刊介绍: Macromolecular Rapid Communications publishes original research in polymer science, ranging from chemistry and physics of polymers to polymers in materials science and life sciences.
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