Conductive polymers derived from iron, ruthenium, and osmium metalloporphyrins: The shish-kebab approach

J P Collman; J T McDevitt; G T Yee; C R Leidner; L G McCullough; W A Little; J B Torrance

doi:10.1073/pnas.83.13.4581

Conductive polymers derived from iron, ruthenium, and osmium metalloporphyrins: The shish-kebab approach

Proc Natl Acad Sci U S A. 1986 Jul;83(13):4581-5. doi: 10.1073/pnas.83.13.4581.

Authors

J P Collman¹, J T McDevitt, G T Yee, C R Leidner, L G McCullough, W A Little, J B Torrance

Affiliation

¹ Department of Chemistry, Stanford University, Stanford CA 94305.

Abstract

The synthesis and characterization of pyrazine-bridged polymers of iron(II/III), ruthenium(II/III), and osmium(II/III) octaethylporphyrin (dubbed "shish-kebab" polymers) are presented. Optical and dc conductivity measurements reveal that the ruthenium and osmium polymers, when partially oxidized, are highly conductive. Electrochemical and ESR results are presented that indicate the existence of an interesting metal-centered conduction pathway. Unlike most of the previously reported porphyrinic molecular metals in which the conduction electrons are macrocyclic-based, electron transport in these materials proceeds exclusively along the metal-pyrazine backbone.