library of shape-persistent, conjugated star-shaped liquidcrystals (LCs) with a zinc porphyrin core was successfully synthesized. Different conjugated arms are attached in the meso-positions. The self-assembly is at the limit between liquidcrystals and soft crystal phases owing to the space-filling requirement. A model indicates the formation of dimers in double helices. A remarkable mesogen with thiophene
self-organize into one-dimensional columnar nanostructures and exhibit ambipolar carrier transport behavior, which has been revealed by time-of-flight measurements. In this approach, electron-donor and acceptor electro-active segments are assembled individually in each column to give one-dimensionalnanostructured materials with precisely tuned electronic properties. Their desirable electronic structures