Self-assembly of mechanically interlocked and threaded rings: a HREELS and XPS study of thiol-functionalised catenane and rotaxane molecules on Au(111)
UNSPECIFIED (2000) Self-assembly of mechanically interlocked and threaded rings: a HREELS and XPS study of thiol-functionalised catenane and rotaxane molecules on Au(111). In: 18th European Conference on Surface Science (ECOSS 18), VIENNA UNIV TECHNOL, VIENNA, AUSTRIA, SEP 21-24, 1999. Published in: Surface Science, 454 pp. 112-117.Full text not available from this repository.
Thiol-functionalised catenane and rotaxane thin Alms were investigated in order to understand the self-assembly of such complex molecules on Au(111). Adsorption from the liquid phase at 300 K leads to the formation of overlayers without long-range order, as evidenced by high-resolution electron energy-loss spectroscopy (HREELS). As expected for thiol adsorption, the sulfur 2p binding energies determined by X-ray photoelectron spectroscopy (XPS) are consistent with the formation of thiolate surface intermediates. The properties of these films are explored as a function of annealing. Changes in vibrational spectra such as the emergence of a Au-O band and variations in core-level binding energies and intensities reveal molecular rearrangement due to partial desorption. In addition, based on coherent domain sizes estimated by the angular width of the elastic beam intensity, annealing promotes long-range order within the adlayers. (C) 2000 Elsevier Science B.V. All rights reserved.
|Item Type:||Conference Item (UNSPECIFIED)|
|Subjects:||Q Science > QD Chemistry
Q Science > QC Physics
|Journal or Publication Title:||Surface Science|
|Publisher:||ELSEVIER SCIENCE BV|
|Date:||20 May 2000|
|Number of Pages:||6|
|Page Range:||pp. 112-117|
|Title of Event:||18th European Conference on Surface Science (ECOSS 18)|
|Location of Event:||VIENNA UNIV TECHNOL, VIENNA, AUSTRIA|
|Date(s) of Event:||SEP 21-24, 1999|
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