Scholarlink

<p><i>Cis—trans</i> isomerization of dihydroquinolylazotetrazole dyes <i>via</i> thermally induced excited triplet state was experimentally proved. The isomerization kinetics was studied in the presence of tetrabutylammonium iodide (TBAI) and iodobenzene (PhI), compounds with the heavy atom. The simultaneous participation of two routes, singlet and thermally induced triplet states, in the rotation mechanism of <i>cis—trans</i> isomerization of azo dyes has been shown for the first time. Special attention is given to differences in the mechanism of action of TBAI and PhI.</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

Role of singlet and triplet states in thermal cis—trans isomerization of azo dyes with dihydroquinoline and tetrazole moieties

  • 期刊论文

  • 发表日期：

    2025年8月1日

查看全文
  • V. V. Kuzmin,
  • G. V. Golovina,
  • A. E. Egorov,
  • E. N. Timokhina,
  • T. Yu. Astakhova,
  • T. D. Nekipelova

摘要

Cis—trans isomerization of dihydroquinolylazotetrazole dyes via thermally induced excited triplet state was experimentally proved. The isomerization kinetics was studied in the presence of tetrabutylammonium iodide (TBAI) and iodobenzene (PhI), compounds with the heavy atom. The simultaneous participation of two routes, singlet and thermally induced triplet states, in the rotation mechanism of cis—trans isomerization of azo dyes has been shown for the first time. Special attention is given to differences in the mechanism of action of TBAI and PhI.