The electrochemical behaviour of [Co(sep)]³⁺ bound with p-sulfonatothiacalix[4]arene and tetracarboxy-p-sulfonatocalix[4]arene in correlation with inclusive and non-inclusive binding modes

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• 作者：Viktoriya Skripacheva (1) viktoriya@iopc.ru
  Vladimir Burilov (1)
  Asiya Mustafina (1)
  Olga Kataeva (1)
  Margit Gruner (2)
  Vitaliy Yanilkin (1)
  Alexey Stepanov (1)
  Viktor Syakaev (1)
  Rustem Zairov (1)
  Svetlana Soloveva (1)
  Wolf Habicher (2)
  Alexander Konovalov (1)
• 关键词：p ; Sulfonatothiacalix[4]arene &#8211 ; p ; Sulfonatocalix[4]arene tetracarbonic acid &#8211 ; Co(III) sepulchrate &#8211 ; Binding mode
• 刊名：Journal of Inclusion Phenomena and Macrocyclic Chemistry
• 出版时间：February 2011
• 出版年：2011
• 期刊代码：19_09230750
• 类别：soc
• 卷：69
• 期：1-2
• 页码：191-199
• 数据来源：sp

摘要

The comparative study of the ion-pairing of Co(III) sepulchrate ([Co(sep)]³⁺) with p-sulfonatothiacalix[4]arene and p-sulfonatocalix[4]arene tetracarbonic acid by ¹H NMR and pH-metric data in solution and X-ray data in solid state elucidates pH dependent effect of carboxylate groups on the stoichiometry and the mode of the ion pairing. The electrochemical data of [Co(sep)]³⁺ bound with both calix[4]arenes have been analyzed in the correlation with stoichiometry and the mode of their binding. The pH-dependent effect of tetracarboxy-p-sulfonatocalix[4]arene on the electrochemical behavior of [Co(sep)]³⁺ has been found to correlate with the participation of carboxylate groups in the host–guest binding.