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<p>Reported herein is the first time mechanochromic materials based on sole enol-form emission of 2-(2′-hydroxyphenyl)azoles containing one triphenylamine (TPA). Three different single crystals were obtained and represent pristine, intermediate, and ground states, respectively. The 2-(2′-hydroxyphenyl)azoles containing two TPA exhibit balanced dual-emission and could be used in multi-channel imaging, and selectivity accumulated in mitochondria of living cells. In addition, we developed the first example of excited state intramolecular proton transfer (ESIPT) materials with sole enol-form emission and balanced dual-emission to detect chemical warfare agents (CWAs) mimic diethyl chlorophosphate (DCP) with good selectivity, highly sensitive, and fast responsive.</p>

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Harnessing the enol/keto-form emission of ESIPT: mechanochromism, multi-channel imaging, and detection of a chemical warfare agent mimic

  • 期刊论文

  • 发表日期：

    2025年1月2日

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  • Kangmin Wang,
  • Min Zhang,
  • Danni Yang,
  • Liqiu Wan,
  • Shouxin Zhang,
  • Liang Yan,
  • Ke Yang,
  • Bijin Li

摘要

Reported herein is the first time mechanochromic materials based on sole enol-form emission of 2-(2′-hydroxyphenyl)azoles containing one triphenylamine (TPA). Three different single crystals were obtained and represent pristine, intermediate, and ground states, respectively. The 2-(2′-hydroxyphenyl)azoles containing two TPA exhibit balanced dual-emission and could be used in multi-channel imaging, and selectivity accumulated in mitochondria of living cells. In addition, we developed the first example of excited state intramolecular proton transfer (ESIPT) materials with sole enol-form emission and balanced dual-emission to detect chemical warfare agents (CWAs) mimic diethyl chlorophosphate (DCP) with good selectivity, highly sensitive, and fast responsive.