1. Inner shell excitation of thiophene and thiolane: Gas, solid, and monolayer states.
- Author
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Hitchcock, A. P., Horsley, J. A., and Stöhr, J.
- Subjects
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ELECTRON energy loss spectroscopy , *THIOPHENES , *X-rays , *PHOTOELECTRONS - Abstract
The electron energy loss spectra of gaseous thiophene and thiolane in the regions of S 2p, S 2s, and C 1s are presented along with the x-ray photoelectron yield (NEXAFS) spectra of both gases in the region of S 1s excitation. The thiophene spectra are compared to the corresponding NEXAFS spectra of solid (multilayer) and monolayer thiophene on Pt (111). MS-Xα calculations of the C 1s, S 2p, and S 1s excitation spectra of free thiophene are also reported. Intercomparison of the gas, surface, and calculated spectra allows a complete interpretation of the spectral features and facilitates determination of the molecular orientation of thiophene with respect to the surface in both the compressed [thiophene on Pt (111) at 150 K] and relaxed [thiophene on Pt (111) at 180 K] monolayer phases. [ABSTRACT FROM AUTHOR]
- Published
- 1986
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