Large disk-shaped aromatic tri (phenanthrolino) hexaazatriphenylenes 5a, 5b, and 5c with six butyl, dodecyl, and 4-octylphenyl groups, respectively, were self-assembled both in solution and film state to form one-dimensional aggregates. Their n-type semiconducting nature was indicated from CV measurement, in which the first reduction potentials were evaluated at around-1.7 V (vs Fc/Fc+) in dichloromethane.
