| Abstract: | The relationship between electronic structure and chemical stability is discussed for three different classes of low band-gap oligomers and polymers. In oligo- and polyn]acenes as well as in poly-(arylenemethide)s, the low band-gap character is connected with a high chemical reactivity due to an energetically favored rearomatization of olefinic or quinonoid substructures, respectively. For double-stranded oligo- and poly(rylene)s, the stability is dramatically increased. Therefore, rylenes appear especially promising in the field of low band-gap materials. |
