Nonlocal chemical reactivity at organic - Metal interfaces

Abstract

Understanding electron transport at the organic-inorganic interface is crucial for many research fields including surface physics and chemistry. In this article, we report the nonlocal chemical reactivity of one monolayer copper hexadecafluorophthalocyanine (F16CuPc) adsorbed on two different substrates, Ag(111) and Au(111), by injecting hot electrons from a scanning tunneling microscope tip. On the basis of experimental and theoretical results, the nonlocal reactions are proposed to strongly depend on hot-electron transport through molecule-substrate interface states. This observation of nonlocal reactivity increases our understanding of electron transport at organic-metal interfaces. © 2009 American Chemical Society.