Chiral molecules possess enantiomers that have non-superimposable chemical structures but exhibit identical nuclear magnetic resonance (NMR) spectra. This feature prevents the use of NMR spectroscopic methods for determination enantiomeric excesses (ee) chiral molecules, using simple mixtures their enantiomers. Recently, however, it was reported addition a symmetrical prochiral molecule (a repo...

Chiral recognition was observed in the interactions of gold nanoparticles grafted with (±)-, (M)-, and (P)-helicenethiol. Although the nanoparticles contain equal enantiomeric excess, a 1:1 mixture of (M)- and (P)-nanoparticles aggregated more rapidly in solution than (±)-nanoparticles.

A novel chiral open-framework fluoroaluminophosphate [C4N3H16][Al6P3O12F6(OH)6] was hydrothermally synthesized using diethylenetriamine as a structure-directing agent. The significant enantiomeric excess of the bulk product was confirmed by the solid state vibrational circular dichroism (VCD) spectrum.

A new method for lowering the error of CD based methods for measuring high enantiomeric excess values is described, which exploits the majority rules effect exhibited by certain helical polymers. A proof of principle experiment was conducted.

The newly developed chiral ligands 1 and 4 show opposite enantioselectivity in the asymmetric reduction of prochiral ketones resulting in the production of either enantiomer depending on the metal complex with high enantiomeric excess.

The distribution and enantiomeric composition of the 5-carbon (C(5)) amino acids found in CI-, CM-, and CR-type carbonaceous meteorites were investigated by using liquid chromatography fluorescence detection/TOF-MS coupled with o-phthaldialdehyde/N-acetyl-L-cysteine derivatization. A large L-enantiomeric excess (ee) of the alpha-methyl amino acid isovaline was found in the CM meteorite Murchiso...