SnPc on Ag(111): A Scanning Tunneling Microscopy Study at the Submolecular Level

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• 作者：Marius Toader ; Michael Hietschold
• 刊名：Journal of Physical Chemistry C
• 出版年：2011
• 出版时间：June 30, 2011
• 年：2011
• 卷：115
• 期：25
• 页码：12494-12500
• 全文大小：994K
• 年卷期：v.115,no.25(June 30, 2011)
• ISSN：1932-7455

文摘

The adsorption of nonplanar tin-phthalocyanine (SnPc) molecules on a Ag(111) single crystal in the submonolayer regime was investigated. The formation of equivalent well-oriented 鈥渃hess-board鈥?like superstructures was observed as a result of the two possible molecular conformational adsorptions: 鈥?i>up鈥?and 鈥?i>down鈥? Different types of molecule鈥搈olecule and molecule鈥搒ubstrate interactions were probed using tip-induced molecular diffusion via single-molecule switching. Submolecular features were emphasized using extremely low voltage-dependent scanning tunneling microscopy (STM) imaging to address the coupling of molecules to the metal surface states.