Redox-active polyiron complexes with tetra(ethynylphenyl)ethene and [2,2]paracyclophane spacers containing ethynylphenyl units: extension to higher dimensional molecular wire

Abstract

Redox active polyiron complexes with higher dimensional spacers, the tetrairon complex with the two-dimensional tetra(ethynylphenyl)ethene spacer, (CC)[p-C₆H₄–CC–FeCp*(dppe)]₄, and the diiron complex with the three-dimensional spacer (pseudo-m-[2,2]paracyclophane)[CC–FeCp*(dppe)]₂, are prepared, and their performance as molecular wires is evaluated on the basis of their comproportionation constants for the mixed valence state.