Self-assembly and optical properties of hydrogen bonded nanostructures containing C60 and pyrene

A new supramolecular system between a barbituric acid-substituted fullerene derivative (1) and dipyrenemethyl-substituted melamine (2) through hydrogen-bonding interaction was prepared. The formation of hydrogen bonding was confirmed by 1H NMR studies in CDCl3/CS2. The photocurrent generation of the self-assembled film of 2 · 1 was measured and a cathodic photocurrent response was obtained. Scanning electron microscopy (SEM) images showed that the self-assembly system could fabricate two different types of aggregated structures: nanoparticles and nanorods.