Chiral dissymmetry caused by chiral ionic liquid interactions were studied using chiroptical luminesces techniques.  Racemic luminescent europium complexes were dissolved into chiral amino acid methyl ester bis(trifluoromethanesulfonimide) ionic liquids. The amino acid methyl esters bis(trifluoromethansulfonimide) studied were L-proline, L-alanine, and D-alanine. Chiroptical studies showed that changing the concentration of the europium complexes caused differences in the chiral discrimination by the chiral ionic liquid. Likewise, when the cation of the europium salt was varied between tetrabutylammonium and tetramethylammonium, the magnitude of the chiral discrimination varied. These results will be discussed in terms of the relationship between ionic liquid structure and solvent-solute interactions.

Amino acid methyl ester chiral ionic liquids: A concentration study

246th National Meeting (2013)

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