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Chiroptical Ionic Liquids, Benjamin Zercher
Chiroptical Ionic Liquids, Benjamin Zercher
Undergraduate Honors Thesis Collection
The synthesis and fluorescent analysis of chiral light emitting ionic liquids made from lanthanide-doped chiral amino acid ionic liquids is described in this thesis. The ionic liquids were composed of tetrabutylammonium (TBA) cation with enantiomers of the amino acids valine, proline, and aspartate as anionic counterions. These ionic liquids of varying amino acid composition were doped with europium trifluoromethanesulfonate (triflate) and analyzed by circularly polarized luminescence (CPL). The sign of the CPL signal corresponded to the handedness of the amino acids in the ionic liquids. Europium triflate concentration dependent CPL in both [TBA][Val] and [TBA][L-Pro] ionic liquids was measured from …