Enantioselective self-assembly of antiferromagnetic hexacopper(II) wheels with chiral amino acid oxamates

The Cu2+-mediated self-assembly of oxamato-based ligands derived from either the (S)- or (R)-enantiomers of the amino acid valine leads to the formation of two antiferromagnetically coupled homochiral anionic hexacopper(II) wheels in the presence of templating tetramethylammonium countercations.