Scholarlink

<p>Three novel coumarin-based arylpyrazolines were successfully designed and synthesized. Among them, probe <b>B</b><sub><b>3</b></sub> demonstrated excellent detection capabilities for Cu<sup>2+</sup>. According to the fluorescence titration and Job’s plot, <b>B</b><sub><b>3</b></sub> could form a complex with Cu<sup>2+</sup> in a 2∶1 ratio, the detection limit was 1.71 × 10<sup> − 8</sup> mol·L<sup>− 1</sup>, and the combining constant was 2.30 × 10<sup>5</sup> L·mol<sup>− 1</sup>. <b>B</b><sub><b>3</b></sub> exhibited outstanding selectivity, high sensitivity, and strong anti-interference ability towards Cu<sup>2+</sup>. Meanwhile, this series of compounds exhibited remarkable optical properties and a large Stokes shift. Compound <b>B</b><sub><b>3</b></sub> exhibited aggregation-induced emission enhancement (AIEE) property in tetrahydrofuran/cyclohexane (THF/CYH) system. Interestingly, <b>B</b><sub><b>1</b></sub>-<b>B</b><sub><b>3</b></sub> displayed reversible mechanofluorochromic (MFC) behavior under external force.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Coumarin-Based Arylpyrazolines: Highly Selective Cu2+ Fluorescent Probes and their AIEE and MFC Properties

  • 期刊论文

  • 发表日期：

    2025年3月11日

查看全文
  • Lin Zhang,
  • Ruonan Xie,
  • Weiguang Zhao,
  • Tiegang Ren,
  • Qilin Wang,
  • Weihan Wang

摘要

Three novel coumarin-based arylpyrazolines were successfully designed and synthesized. Among them, probe B3 demonstrated excellent detection capabilities for Cu2+. According to the fluorescence titration and Job’s plot, B3 could form a complex with Cu2+ in a 2∶1 ratio, the detection limit was 1.71 × 10 − 8 mol·L− 1, and the combining constant was 2.30 × 105 L·mol− 1. B3 exhibited outstanding selectivity, high sensitivity, and strong anti-interference ability towards Cu2+. Meanwhile, this series of compounds exhibited remarkable optical properties and a large Stokes shift. Compound B3 exhibited aggregation-induced emission enhancement (AIEE) property in tetrahydrofuran/cyclohexane (THF/CYH) system. Interestingly, B1-B3 displayed reversible mechanofluorochromic (MFC) behavior under external force.