super(1)H Pure Shift DOSY: a handy tool to evaluate the aggregation and solvation of organolithium derivatives

Determination of the structure and solvation states of organolithium aggregates in complex solution remains a challenging task. Here, we show that super(1)H Pure Shift DOSY NMR provides better resolution spectra without overlapping, even for complex solutions of mixed aggregates of n-BuLi/n-BuOLi. T...

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Bibliographic Details
Published inChemical communications (Cambridge, England) Vol. 50; no. 31; pp. 4073 - 4075
Main Authors Hamdoun, G, Sebban, M, Cossoul, E, Harrison-Marchand, A, Maddaluno, J, Oulyadi, H
Format Journal Article
LanguageEnglish
Published 01.03.2014
Subjects
Agglomeration
Aggregates
Derivatives
Diffusion
Solvation
Spectra
Task complexity
Tasks
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Summary:Determination of the structure and solvation states of organolithium aggregates in complex solution remains a challenging task. Here, we show that super(1)H Pure Shift DOSY NMR provides better resolution spectra without overlapping, even for complex solutions of mixed aggregates of n-BuLi/n-BuOLi. This ensures the direct observation of the apparent diffusion constant for each component in the solution and therefore allows a fast assignment of aggregation states, and solvation degree.
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ISSN:1359-7345
1364-548X
DOI:10.1039/c4cc00111g