%0 Journal Article
%T Tip-Induced Molecule Anchoring in Ni-Phthalocyanine on Au(111) Substrate
%A Yong Chan Jeong
%A Sang Yong Song
%A Youngjae Kim
%A Youngtek Oh
%A Joongoo Kang
%A Jungpil Seo
%J Physics
%D 2015
%I arXiv
%X Pinning single molecules at desired positions can provide opportunities to fabricate bottom-up designed molecular machines. Using the combined approach of scanning tunneling microscopy and density functional theory, we report on tip-induced anchoring of Niphthalocyanine molecules on an Au(111) substrate. We demonstrate that the tip-induced current leads to the dehydrogenation of a benzene-like ligand in the molecule, which subsequently creates chemical bonds between the molecule and the substrate. It is also found that the diffusivity of Ni-phthalocyanine molecules is dramatically reduced when the molecules are anchored on the Au adatoms produced by bias pulsing. The tip-induced molecular anchoring would be readily applicable to other functional molecules that contain similar ligands.
%U http://arxiv.org/abs/1511.04904v1