Bridged Macrocyclic Transition Metal-Oligomers, Synthesis and Electrical Properties

Abstract

Stable intrinsic semiconductors, which exhibit conductivities of 0.1 S/cm without any doping process can be easily prepared by using our “shish-kebab” approach. Hereby stacked transition metal macrocycles [MacM(L)]_n. with M e.g. Fe, Ru, Os and Mac = phthalocya- nine (Pc) or 2,3-naphthalocyanine (2,3-Nc) are used. The bridging ligands (L) are special heteroaromatic systems, e.g. s-tetrazine (tz), substituted tetrazines, triazine (tri), substituted triazines, but also special organic dinitriles, e.g. tetrafluoroterephthalic acid dinitrile, fuma- rodinitrile, dicyanoacetylene, and cyanogen. We report about the preparation and the characterization of the corresponding transition metal complexes [MacM(L)]_n.