pH-Driven Variation of the Outer-Sphere Binding Mode of cis-[Co(Ad)(en)2Cl]Cl (en-Ethylendiamine, Ad-Adeninate) with p-Sulfonatothiacalix[4]arene
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- 作者：V. V. Skripacheva ; A. R. Mustafina ; V. A. Burilov ; L. F. Galiullina ; Sh. K. Latypov ; S. E. Solov鈥檈va ; I. S. Antipin and A. I. Konovalov
- 关键词：Co (III) bis ; ethylendiaminate ; adeninate ; inclusion complex ; NMR 1H spectroscopy ; outer ; sphere coordination ; p ; Sulfonatothiacalix[4]arene
- 刊名：Journal of Inclusion Phenomena and Macrocyclic Chemistry
- 出版时间：December, 2006
- 出版年：2006
- 期刊代码：19_09230750
- 类别：soc
- 卷：56
- 期：3-4
- 页码：369-374
- 数据来源：sp
摘要
The non-symmetrical cobalt (III) complex cis-[Co(Ad)(en)2Cl]Cl (1Cl), possessing two flexible ethylendiaminate chelate rings (en) and monodentate N(9)-bound adeninate (Ad-) was chosen as the guest of p-sulfonatothiacalix[4]arene (STCA) to study the inclusion complex formation at wide range of pH 2–10. It was shown by 1H, NOE NMR methods and pH-metric procedure, that pH-driven variation of the inclusion mode of 1 + into calixarene cavity is the result of the protonation of 1 + via adeninate moiety.