title: In situ scanning tunneling microscopy investigation of subphthalocyanine and subnaphthalocyanine adlayers on a Au(111) electrode.
abstract: The adsorption behaviors of subphthalocyanine (SubPc) and subnaphthalocyanine (SubNc) on the Au(111) surface were investigated by electrochemical scanning tunneling microscopy (ECSTM). Two types of ordered adlayer structures of SubPc were observed at 550 mV versus the reversible hydrogen electrode (RHE). All of the SubPc molecules take the Cl-down adsorption configuration on Au(111) in both structures. The ordered adlayers exist in the potential range between 350 and 650 mV. The SubNc molecules adsorb on Au(111) in a less-ordered pattern than the SubPc molecules. The present work provides direct evidence for understanding the potential-controlled adsorption behaviors of SubPc and SubNc on the Au(111) surface.
authors.affiliation: CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
authors.forename: Jing-Ying
authors.initials: JY
authors.lastname: Gu
authors.forename: Bo
authors.initials: B
authors.lastname: Cui
authors.forename: Ting
authors.initials: T
authors.lastname: Chen
authors.forename: Hui-Juan
authors.initials: HJ
authors.lastname: Yan
authors.forename: Dong
authors.initials: D
authors.lastname: Wang
authors.forename: Li-Jun
authors.initials: LJ
authors.lastname: Wan