The absorption of the heterofullerene C59N on the Si(100)-2×1 surface has been investigated using scanning tunneling microscopy (STM) under ultrahigh vacuum conditions. The molecules are adsorbed in monomer form in the troughs between silicon dimer rows. It is possible to use the tip of the STM to manipulate the molecules parallel and perpendicular to the dimer rows in a controlled fashion at room temperature. To determine the stability of the C59N monomer we have examined the response of pairs of molecules to STM manipulation and found that the Si(100)-2×1 surface inhibits conversion to (C59N)2 dimers.
ASJC Scopus subject areas