Tellurophene-containing π-conjugated polymers with unique heteroatom–heteroatom interactions by post-element-transformation of an organotitanium polymer

Abstract

A unique π-conjugated polymer that possesses fully coplanar ring units through a tellurium–oxygen interaction, poly[(tellurophene-2,5-diyl)-alt-(2,5-dialkoxybenzene-1,4-diyl)], was prepared by the post-element-transformation of a titanacyclopentadiene-containing reactive precursor. The characteristic features of the heteroatom–heteroatom interaction and the electronic features of the polymer such as high HOMO and low LUMO energy levels are described.