A chiral copper complex forms supramolecular homochiral helices via O-H•••Cl-Cu interactions

An enantiopure ligand H2L [Schiff base prepared from (S)-(+)-2-phenylglycinol and 2-hydroxy-5-nitrobenzaldehyde] reacts with CUC1(2)(.)2H(2)O to yield a chiral copper complex [Cu(HL)Cl] (1) that forms right-handed supramolecular helices via O-(HCl)-Cl-...-Cu hydrogen bonds. ((c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005).