Chirality from substitution: enantiomer separation via a modified metal–organic framework†
Abstract
A microporous MOF structure, D-his–ZIF-8, with a chiral environment was synthesized via a simple ligand in situ substitution (LIS) of 2-methyl imidazolate (mIm) with D-histidine. These chiral MOF composites show exceptional selective separation capability for racemic alanine and glutamic acid, with an ee value of 78.52% and 79.44%, respectively.