Synthesis and characterization of N-confused porphyrinatoantimony(V): toward a low energy gap molecular wire

N-Confused tetraarylporphyrinatoantimony(V) dimethoxides were synthesized a nd their X-ray crystallographic structure, absorption spectra and voltammet ric spectra were studied. X-ray crystallographic structure revealed neutral molecules with no counter anion. From the absorption spectra and voltammet ric studies we estimated their energy gaps to be about 0.2 eV less than the corresponding porphyrinatoantimony(V). The axial ligands could easily be e xchanged in solvent alcohol by acid promotion. These characteristics of N-c onfused porphyrinatoantimony(V) indicate that they are good candidates for the molecular wire component. (C) 2000 Elsevier Science S.A. All rights res erved.