Adlayer structure of octa-alkoxy-substituted copper(II) phthalocyanine on Au(111) by electrochemical scanning tunneling microscopy.
Electrochemical scanning tunneling microscopy (ECSTM) has been used to examine the adlayer of octa-alkoxy-substituted copper(II) phthalocyanines (CuPc(OC(8)H(17))(8)) on Au(111) in 0.1 M HClO(4), where the molecular adlayer was prepared by spontaneous adsorption from a benzene solution containing this molecule. Topography STM scans revealed long-range ordered, interweaved arrays of CuPc(OC(8)H(17))(8) with coexistent rectangular and hexagonal symmetries. High-quality STM molecular resolution yielded the internal molecular structure and the orientation of CuPc(OC(8)H(17))(8) admolecules. These STM results could shed insight into the method of generating ordered molecular assemblies of phthalocyanine molecules with long-chained substitutes on metal surface.
Wang
Li
L
College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China. lwang@jxnu.edu.cn
Ou-Yang
Liangyue
L
Yau
Shueh-Lin
SL
D000327:Adsorption; D004563:Electrochemistry; D006046:Gold / Q000737:chemistry*; D007211:Indoles / Q000737:chemistry*; D016252:Microscopy, Scanning Tunneling / Q000379:methods*; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*
D007211:Indoles; D009942:Organometallic Compounds; C015445:copper phthalocyanine; D006046:Gold