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Title: Effect of functional group (fluorine) of aromatic thiols on electron transfer at the molecule-metal interface
Authors: Chen, W. 
Wang, L. 
Huang, C.
Lin, T.T.
Gao, X.Y. 
Loh, K.P. 
Chen, Z.K.
Wee, A.T.S. 
Issue Date: 25-Jan-2006
Citation: Chen, W., Wang, L., Huang, C., Lin, T.T., Gao, X.Y., Loh, K.P., Chen, Z.K., Wee, A.T.S. (2006-01-25). Effect of functional group (fluorine) of aromatic thiols on electron transfer at the molecule-metal interface. Journal of the American Chemical Society 128 (3) : 935-939. ScholarBank@NUS Repository.
Abstract: Electron transferal the molecule-metal interface of self-assembled monolayers of 1,1′;4′,1″-terphenyl-4″-thiol (BBB) and its partially fluorinated counterpart (BFF: p-thiophenyl-nonafluorobiphenyl) on Au(111) is investigated by core-hole clock spectroscopy. Ultrafast electron transfer at the BBB/Au(111) interface in the low-femtosecond regime (on the same time scale as the C 1s core-hole lifetime, ∼6 fs) was observed. In contrast, for BFF/Au(111), the interface electron transfer was forbidden during the core-hole decay. This strongly suggests that fluorination of phenyl rings significantly enhances the localization of the excited electrons in the LUMO. © 2006 American Chemical Society.
Source Title: Journal of the American Chemical Society
ISSN: 00027863
DOI: 10.1021/ja056324a
Appears in Collections:Staff Publications

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