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EXAFS studies on the methanol and ethanol solutions of cobalt(II) bromides

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Abstract

The results of an EXAFS investigation of methanol and ethanol solutions of CoBr2 are reported. The curve fitting analysis gives the coordination numbers and the Co−Br and Co-solvent distances. The results for both 0.2M and 3.8M CoBr2 in ethanol show the existence of [CoBr2(C2H5OH)2] as the dominant species, although a considerable amount of octahedral species also exists in the solutions. In 0.2 and 3.3M CoBr2 methanol solutions, the dominant species are [Co(CH3OH)6]2+ and [CoBr(CH3OH)5]+, respectively.

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Sano, M., Maruo, T., Masuda, Y. et al. EXAFS studies on the methanol and ethanol solutions of cobalt(II) bromides. J Solution Chem 15, 803–809 (1986). https://doi.org/10.1007/BF00646088

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Key Words

  • Methanol
  • ethanol
  • cobalt(II) bromides
  • EXAFS
  • speciation