β-Turn-structure-assembled palladium complexes by complexation-induced self-organization of ferrocene–dipeptide conjugates

Abstract

A type II β-turn-like structured ferrocene–dipeptide conjugate through intramolecular hydrogen bonding was formed by the introduction of only one minimum-sized peptide chain of the heterochiral sequence (–L-Ala–D-Pro–NH–4-Py or –D-Ala–L-Pro–NH–4-Py) into the ferrocene scaffold, which was subjected to a metal-directed assembly with [Pd(MeCN)₄](BF₄)₂ to afford the β-turn-structure-assembled palladium complex.