Self-assembly of the [60]fullerene-substituted Oligopyridines on Au Surface
C60衍生物在金表面的自组装

The cycloaddition reaction of azide of oligopyridine with 60]fullerene was used to synthesize a novel 60]fullerene derivatives containing oligopyridyl group, which is employed to self-assemble on the surface of Au(111). The scanning tunneling microscopy results show that the 60]fullerene derivative can form a self- assembled monolayer on the Au(111) surface spontaneously. The ligand is used to self-assemble on the surface of gold nanoparticles. Transmission electron micrographs indicated indeed the presence of spherical particles with an average radius of about 5~15 nm in the nanoparticle preparations. It is found that the more quickly stirring rate is avail to congregate and obtain monodisperse gold nanopaticle, which is less radius gold nanoparticle. The similar result is given under normal ultrasonic. It affords a approach improving control of nanoparticle size and shape.