Jan M. Wollschläger, Konstantin Simon, Marius Gaedke and Christoph A. Schalley
Chem. Commun., 2018,54, 4967-4970
DOI:
10.1039/C8CC01671B,
Communication
Two new BINOL-based chiral crown ether/ammonium complexes are studied by travelling-wave ion-mobility spectrometry. Homo- and heterochiral crown ether/ammonium complexes differ in their collision cross sections, and these differences go along with changes in hydrogen bonding as revealed by gas phase H/D-exchange experiments. Applications for the determination of enantiomeric excess are discussed.