Selective bonding of pyrazine to silicon 100-2×1 surfaces: The role of nitrogen atoms

Abstract

The selective bonding of pyrazine to silicon surfaces was investigated using high-resolution electron energy loss spectroscopy (HREELS) and x-ray photoelectron spectroscopy. It was found that the pyrazine ring is an important functional constituent in a variety of important organic compounds and materials. The chemisorbed pyrazine containing two unconjugated C double bonds C was employed as an intermediate for molecules synthesis in vacuum by reacting with chosen organic functionalities. The binding mechanism for pyrazine on Si demonstrated that reaction channels for heteroatomic aromatic molecules are strongly dependent on the electronic properties of the constituent atoms.