X-ray diffraction study of lithium halides in methanol

The structure of solutions of lithium halide (LiCl and LiI) in methanol has been studied by X-ray diffraction. The parameters for ion-solvent interaction are in good agreement with those found in earlier studies both in methanol and aqueous solutions. In low concentrated solutions six solvate molecu...

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Bibliographic Details
Published in:Journal of molecular liquids 2002-11, Vol.101 (1), p.3-18
Main Authors: Megyes, T., Radnai, T., Grósz, T., Pálinkás, G.
Format: Article
Language:English
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Summary:The structure of solutions of lithium halide (LiCl and LiI) in methanol has been studied by X-ray diffraction. The parameters for ion-solvent interaction are in good agreement with those found in earlier studies both in methanol and aqueous solutions. In low concentrated solutions six solvate molecules surround the Li + ion. The solvation shell of Cl − ion is composed of six methanol molecules and that of I − of eight methanol molecules. The coordination numbers decrease with increase in concentration. The concentration dependence for chloride and iodide ion shows a significant difference. On the basis of the stoichiometry and parameters obtained, different models are suggested to explain the structure of the solutions.
ISSN:0167-7322
1873-3166
DOI:10.1016/S0167-7322(02)00098-3