Аннотация:Langmuir-Blodgett (LB) films of naphthacenequinone molecules on highly oriented pyrolytic graphite (HOPG) have been investigated by scanning tunneling microscopy/spectroscopy (STM/STS). It is shown that naphthacenequinone molecules incorporated in LB films are capable to form stable ordered structures on the surface of HOPG substrate, The distinct peak in local density of electronic states has been detected