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VI-M-2 Site-Specific Fragmentation Following C:1s Core-Level Photoionization of 1,1,1- Trifluoroethane Condensed on a Au Surface and of a 2,2,2-Trifluoroethanol Monolayer Chemisorbed on a Si(100) Surface
| Content Provider | Semantic Scholar |
|---|---|
| Author | Nagaoka Nagasono, Mitsuru Tanaka, Shin-Ichi-Ro Urisu, Tsuneo Joji |
| Copyright Year | 2001 |
| Abstract | We used photoelectron spectroscopy and the energyselected-photoelectron photoion coincidence (ESPEPICO) method to study site-specific phenomena in the Si:2p photoionization of X3Si(CH2)nSi(CH3)3 (X = F or Cl, n = 0–2) condensed on a Si(111) surface. The site-specific excitation and the occurrence of different chemical shifts at two Si sites were revealed in the total electron-yield spectra and the photoelectron spectra of F3Si(CH2)nSi(CH3)3 (n = 1, 2), although they were not clearly revealed in those of Cl3SiSi(CH3)3. We conclude that these site-specific phenomena are easily observed in molecules in which the two Si sites are located far apart and in which electron migration between the two Sicontaining groups does not occur. This was supported by our ab initio calculation. Site-specific fragmentation was revealed in the ESPEPICO spectrum of F3SiCH2CH2Si(CH3)3, although it was negligible for Cl3SiSi(CH3)3 and was less remarkable in F3SiCH2Si(CH3)3 than in F3SiCH2CH2Si(CH3)3. Site-specific fragmentation also occurred when the two Si sites were located far apart. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.ims.ac.jp/en/about/publication/ann_rev_2000/ar200067.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
