title: Spectroscopic studies of amino acid ionic liquid-supported Schiff bases.
abstract: Amino acid ionic liquid-supported Schiff bases, derivatives of salicylaldehyde and various amino acids (L-threonine, L-valine, L-leucine, L-isoleucine and L-histidine) have been investigated by means of various spectroscopic techniques (NMR, UV-Vis, IR, MS) and deuterium isotope effects on ¹³C-NMR chemical shifts. The results have shown that in all studied amino acid ionic liquid-supported Schiff bases (except the L-histidine derivative) a proton transfer equilibrium exists and the presence of the COO⁻ group stabilizes the proton transferred NH-form.
authors: Department of Inorganic and Analytical Chemistry, West Pomeranian University of Technology, Szczecin, Al. Piastów 42, Szczecin 71-065, Poland.
authors: Paula
authors: P
authors: Ossowicz
authors: Ewa
authors: E
authors: Janus
authors: Grzegorz
authors: G
authors: Schroeder
authors: Zbigniew
authors: Z
authors: Rozwadowski
mesh_terms: D000447:Aldehydes / Q000737:chemistry*; D000596:Amino Acids / Q000737:chemistry*; D012545:Schiff Bases / Q000737:chemistry; D013057:Spectrum Analysis / Q000379:methods
chemical_list: D000447:Aldehydes; D000596:Amino Acids; D012545:Schiff Bases; C013243:salicylaldehyde
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