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Structural ordering of ω-ferrocenylalkanethiol monolayers on Au(111) studied by scanning tunneling microscopy
- Source :
-
Surface Science . Feb2009, Vol. 603 Issue 4, p716-722. 7p. - Publication Year :
- 2009
-
Abstract
- Abstract: The self-assembly of ω-ferrocenylalkanethiols (FcCnSH) with different alkyl-spacer lengths on Au(111) substrates has been studied by scanning tunneling microscopy (STM). Upon deposition at room temperature FcCnSH molecules tend to form multilayers, while by thermal treatment monolayer formation, a rearrangement of the molecules and the formation of ordered domains is achieved. The surface structure of the resulting full coverage self-assembled monolayers is resolved with molecular resolution by STM. The ordered monolayer structure of ω-ferrocenylpropanethiol is discussed in comparison with its bulk crystal structure, derived from single crystal X-ray analysis. Based on these results a monolayer structure of ω-ferrocenylalkanethiols with longer alkyl chains closely related to the bulk crystal structure of the shorter alkyl-spacer derivates is suggested. Our results provide detailed insight into the self-assembly of FcCnSH on gold substrates. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00396028
- Volume :
- 603
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Surface Science
- Publication Type :
- Academic Journal
- Accession number :
- 36563742
- Full Text :
- https://doi.org/10.1016/j.susc.2009.01.013