Fluorocarbon-stabilized gold nanoparticles were prepared for the first time by reduction of AuCl4- in the presence of fluorinated alkane thiols as stabilizers. Transmission electron microscopy revealed the formation of uniform gold nanoparticles. These fluoro-nanoparticles are soluble only in fluorocarbon media, and casting of these dispersions provided highly ordered, hexagonally packed monolayers on solid substrates.