Thermodynamic stereoselectivity assisted by weak interactions in metal complexes. Chiral recognition of L/D-amino acids by the copper(II) complex of 6-deoxy-6-[4-(2-aminoethyl)imidazolyl]cyclomaltoheptaose
Thermodynamic stereoselectivity assisted by weak interactions in metal complexes. Chiral recognition of L/D-amino acids by the copper(II) complex of 6-deoxy-6-[4-(2-aminoethyl)imidazolyl]cyclomaltoheptaose
The newly synthesized 6-derivative of β-cyclodextrin with histamine, bound through the N-1 of imidazole was used as a ligand for copper(II) ion, the ligand being characterized by NMR spectroscopy and the copper(II) complex by EPR spectroscopy; the complex was used in chiral ligand exchange chromatography and was able to separate L- and D-tryptophan.