Beta-turn-structure-assembled palladium complexes by complexation-induced self-organization of ferrocene-dipeptide conjugates.

A type II beta-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)](BF(4))(2) to afford the beta-turn-structure-assembled palladium complex.