Scholarlink

<p>A new method for activation of the S<sub>8</sub> ring by the reaction with dimethyl phosphate-containing ionic liquids under mild conditions that meet the green chemistry principles was studied. The quantum chemical simulation of the reaction of cyclooctasulfur with 1,3-dimethylimidazolium dimethyl phosphate predicted the formation of the S—O polar covalent bond with simultaneous opening of the S<sub>8</sub> ring, which was confirmed experimentally. The reversibly formed 1,3-dimethylimidazolium (phosphonooxy)oligosulfanide is unstable in the presence of proton donors and to treatment with weak bases. The new thionation reaction of the 1,3-dimethylimidazolium cation to give 1,3-dimethylimidazoline-2-thione was found and the potential of (phosphonooxy)oligosulfanides for the formation of a liquid cathode for a lithium sulfur battery prototype was demonstrated for the first time.</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

Low-temperature activation of cyclooctasulfur ring: synthesis and chemical properties of 1,3-dimethylimidazolium (phosphonooxy)oligosulfanide

  • 期刊论文

  • 发表日期：

    2025年11月1日

查看全文
  • N. P. Tarasova,
  • E. G. Krivoborodov,
  • A. N. Egorova,
  • S. A. Muradyan,
  • D. V. Andriyanova,
  • O. O. Nasikan,
  • Yu. V. Glebova,
  • A. P. Novikov,
  • Ya. O. Mezhuev

摘要

A new method for activation of the S8 ring by the reaction with dimethyl phosphate-containing ionic liquids under mild conditions that meet the green chemistry principles was studied. The quantum chemical simulation of the reaction of cyclooctasulfur with 1,3-dimethylimidazolium dimethyl phosphate predicted the formation of the S—O polar covalent bond with simultaneous opening of the S8 ring, which was confirmed experimentally. The reversibly formed 1,3-dimethylimidazolium (phosphonooxy)oligosulfanide is unstable in the presence of proton donors and to treatment with weak bases. The new thionation reaction of the 1,3-dimethylimidazolium cation to give 1,3-dimethylimidazoline-2-thione was found and the potential of (phosphonooxy)oligosulfanides for the formation of a liquid cathode for a lithium sulfur battery prototype was demonstrated for the first time.