Synthesis of One-Dimensional Metal-Containing Insulated Molecular Wire with Versatile Properties Directed toward Molecular Electronics Materials

We report, herein, the design, synthesis,
and properties of new
materials directed toward molecular electronics. A transition metal-containing
insulated molecular wire was synthesized through the coordination
polymerization of a Ru­(II) porphyrin with an insulated bridging ligand
of well-defined structure. The wire displayed not only high linearity
and rigidity, but also high intramolecular charge mobility. Owing
to the unique properties of the coordination bond, the interconversion
between the monomer and polymer states was realized under a carbon
monoxide atmosphere or UV irradiation. The results demonstrated a
high potential of the metal-containing insulated molecular wire for
applications in molecular electronics.