Enantioselective guest binding and dynamic resolution of cationic ruthenium complexes by a chiral metal-ligand assembly

J Am Chem Soc. 2004 Mar 31;126(12):3674-5. doi: 10.1021/ja039225a.

Abstract

A supramolecular metal-ligand assembly encapsulates a variety of cationic half-sandwich ruthenium complexes. Due to the chirality of both host and guest, chiral recognition is observed with diastereomeric excesses up to 70%. The chiral cavity can be used to carry out a dynamic resolution of the rapidly equilibrating enantiomers of the chiral organometallic guest.