Fig. 3: Enantioselective mechanism for D-TAH-COF membrane. | Nature Communications

Fig. 3: Enantioselective mechanism for D-TAH-COF membrane.

From: A homochiral covalent organic framework membrane for the enantioseparation and fractionation of amino acids

Fig. 3

a Partial 1H NMR spectra of the D-model compound (400 MHz, 293 K, DMSO-d6) upon the stepwise addition of L-threonine (proton Ha in the hydroxyl group of the chiral chain). b Comparison of the binding isotherms for threonine diastereomeric host–guest combinations. c Snapshot images of the MD simulation process, focusing on the D-TAH-COF membrane separating amino acids (white: H; blue: N; gray: C; yellow: L-threonine; light blue: D-threonine). d Time dependence of MSD curves of threonine diastereomers for D-TAH COF membrane. Density distribution profiles of L-threonine (e) and D-threonine (f) in XY-plane for the D-TAH COF membrane.

Back to article page