Group 14 metalloles condensed with heteroaromatic systems

Abstract

There has been keen interest in group 14 metalloles as building units of conjugated organic functional materials. This short review summarizes our recent work on group 14 metalloles condensed with heteroaromatic systems, including thiophene and pyridine. These condensed metalloles show interesting properties depending on both the group 14 metallole elements and the heteroaromatic systems. High planarity of the condensed systems and interaction between the element σ*-orbital and the heteroaromatic π*-orbital enhance the conjugation in these systems leading to their potential applications as functional materials, such as carrier transporting materials and emissive materials.