Chirality enrichment through the heterorecognition of enantiomers in an achiral coordination host

Abstract

A bowl of pairs: The water-soluble bowl-shaped coordination compound formed from [Pd(en)(NO3)2] (en = ethylenediamine) and tris(3-pyridyl)triazine recognizes preferentially a racemic pair of guest molecules such as 1,1′-bi-2-naphthol. This bimolecular recognition results in chirality enrichment in the organic phase without the need to add another source of chirality (see scheme). (Figure Presented). © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.