Chirality-Organized Ferrocene Receptor Bearing Podand Dipeptide Chains (− l -Ala- l -Pro-NHPyMe) for the Selective Recognition of Dicarboxylic Acids

[structure: see text] The ferrocene receptor bearing the podand dipeptide chains (-l-Ala-l-Pro-NHPyMe) was found to provide a chirality-organized binding site through two intramolecular interchain hydrogen bonds between CO (Ala) and NH (another Ala) of each podand dipeptide chain. The size-selective and chiral recognition of dicarboxylic acids was achieved by multipoint hydrogen bonds of the binding site.