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Article Dans Une Revue Chemical Communications Année : 2014

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

Résumé

Determination of the structure and solvation states of organolithium aggregates in complex solution remains a challenging task. Here, we show that 1H 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.

Domaines

Chimie organique
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Dates et versions

hal-02019298 , version 1 (14-02-2019)

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Ghanem Hamdoun, Muriel Sebban, E. Cossoul, Anne Harrison-Marchand, Jacques Maddaluno, et al.. 1 H Pure Shift DOSY: a handy tool to evaluate the aggregation and solvation of organolithium derivatives. Chemical Communications, 2014, 50 (31), pp.4073-4075. ⟨10.1039/C4CC00111G⟩. ⟨hal-02019298⟩
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