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首页> 外文期刊>RSC Advances >Synthesis, photophysics, ion detection and DFT investigation of novel cyano-substituted red-light chromophores with a triphenylamine donor
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Synthesis, photophysics, ion detection and DFT investigation of novel cyano-substituted red-light chromophores with a triphenylamine donor

机译：用三苯胺供体的新型氰基取代的红光发色团的合成，光药，离子检测和DFT调查

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摘要

A series of novel triphenylamine-based red-light chromophores with multiple electron-withdrawing cyano substituents were synthesized by the Knoevenagel condensation reaction and characterized in detail. Compounds 3-5 showed bright green-yellow emission in dichloromethane solution and red-light emission in the solid state, respectively. The interesting solvatochromic behavior in different polar solvents was observed, varying from positive solvatochromism for compound 3 to negative solvatochromism for compound 5. In addition, the notable optical response of metal ions in DMF solution for the cyano-substituted chromophores was investigated. Especially, with the addition of Hg2+ ions, the blue shift in the absorption spectra and the decrease in the emission spectra suggested that the new metal complexes possibly formed between the cyano substituents and metal ions or metal ion-induced optical quenching happened. Density functional theory calculations were used to further understand the effect of the cyano substituents on the photoelectron properties of the donor-acceptor molecules.
机译：通过KnoevenageL缩合反应合成了一系列基于三苯胺的红光发色团，具有多种吸附氰基取代基，并详细表征。化合物3-5分别显示了二氯甲烷溶液中的鲜绿色发射和固态的红光发射。观察到不同极性溶剂中的有趣的溶性溶剂致溶剂，从化合物3的正溶色体变化到化合物5中的阴性溶性溶解度。此外，研究了用于氰基取代的发色团的DMF溶液中金属离子的显着光学响应。特别是，随着HG2 +离子的添加​​，吸收光谱中的蓝色偏移和发射光谱的降低表明，可能形成在氰基取代基和金属离子或金属离子诱导的光学淬火之间的新金属配合物。使用密度函数理论计算用于进一步了解氰基取代基对供体 - 受体分子的光电子性质的影响。

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  • 来源
    《RSC Advances》 |2016年第15期|共10页
  • 作者

    Sun Na; Zhang Peng; Hou Yanling;

  • 作者单位

    Southwest Univ Sch Chem &

    Chem Engn Chongqing 400715 Peoples R China;

    Southwest Univ Sch Chem &

    Chem Engn Chongqing 400715 Peoples R China;

    Southwest Univ Sch Chem &

    Chem Engn Chongqing 400715 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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