Solvation dynamics of lithium salts in wet nitrobenzene

Dynamics of solvation of lithium salts in “wet” nitrobenzene was studied by 7Li NMR and by FTIR. Well-resolved NMR peaks corresponding to various solvatomers of Li have been observed in solution of LiClO 4 in nitrobenzene saturated with water. It has been found that the solvation equilibria are domi...

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Bibliographic Details
Published in:Journal of electroanalytical chemistry (Lausanne, Switzerland) Switzerland), 2006-08, Vol.593 (1), p.111-118
Main Authors: Moakes, Greg, Gelbaum, Leslie T., Leisen, Johannes, Janata, Jiri, Marecek, Vladimir
Format: Article
Language:English
Subjects:
Chemistry
Exact sciences and technology
FTIR
General and physical chemistry
Nitrobenzene/water
NMR
Solutions
Solvation
Solvation. Solvent properties
Solvatomers
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Summary:Dynamics of solvation of lithium salts in “wet” nitrobenzene was studied by 7Li NMR and by FTIR. Well-resolved NMR peaks corresponding to various solvatomers of Li have been observed in solution of LiClO 4 in nitrobenzene saturated with water. It has been found that the solvation equilibria are dominated by slow kinetics involving mixed solvatomer Li (nitrobenzene/water). At the glass wall this solvatomer decomposes slowly, over period of many hours, to fully hydrated Li (water) solvatomer. On the other hand, no such decomposition is observed at the Teflon/nitrobenzene interface and the Li (nitrobenzene/water) even more slowly converts to solvatomer Li (nitrobenzene), solvated mostly by nitrobenzene. The effect of the anion on the “free” OH stretch at 3583 and 3672 cm −1, respectively, has been studied by the FTIR.
ISSN:1572-6657
1873-2569
DOI:10.1016/j.jelechem.2006.03.028