1976
DOI: 10.1039/dt9760000731
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He(I) photoelectron spectra and semiempirical molecular-orbital calculations on methylmetal halides of Group 4A elements

Abstract: The photoelectron spectra of the compounds MMe,X (M = C, Si, Ge, Sn, and Pb; X = CI and Br) have been measured. An assignment of the spectra is proposed based on a comparison with spectra of the similar compounds MMe, and MXH, and on semiempirical CNDO calculations which have been extended to third-row elements.

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Cited by 10 publications
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“…Mass spectrometry of polymethylsilanes and siloxanes has been the subject of many studies because of the very high stability of the trimethylsilyl, Si(CH3)3+, ion. [10][11][12] In the present work, we report new mass spectrometry measurements with the multicoincidence technique known as PEPIPICO mass spectrometry or charge separation mass spectrometry)13 (CSMS) applied to hexamethyldisilane, Si2(CH3) 6 (HMDS), photoexcited near the Si 2p edge (i.e., from 100-to 130-eV photon energy). The interest of this molecule compared to the previously studied monosilane molecules is the presence of Si-Si and Si-C bonds with different strengths.…”
Section: Introductionmentioning
confidence: 99%
“…Mass spectrometry of polymethylsilanes and siloxanes has been the subject of many studies because of the very high stability of the trimethylsilyl, Si(CH3)3+, ion. [10][11][12] In the present work, we report new mass spectrometry measurements with the multicoincidence technique known as PEPIPICO mass spectrometry or charge separation mass spectrometry)13 (CSMS) applied to hexamethyldisilane, Si2(CH3) 6 (HMDS), photoexcited near the Si 2p edge (i.e., from 100-to 130-eV photon energy). The interest of this molecule compared to the previously studied monosilane molecules is the presence of Si-Si and Si-C bonds with different strengths.…”
Section: Introductionmentioning
confidence: 99%
“…If this excited electronic state is repulsive and dissociates exclusively by Cl loss, then the reaction will not be statistical, and we lose our ability to analyze the shape of the breakdown diagram. Such dissociative states are not uncommon for the case of halogenated ions. A particularly relevant example is t -C 4 H 9 I, in which the ground ionic state dissociates statistically and the excited ionic state does not .…”
Section: Resultsmentioning
confidence: 99%
“…Such dissociative states are not uncommon for the case of halogenated ions. [43][44][45][46] A particularly relevant example is t-C 4 H 9 I, in which the ground ionic state dissociates statistically and the excited ionic state does not. 47 For this reason, we modeled only the very initial parts of the Me 3 Ge + peak in Figure 2.…”
Section: Resultsmentioning
confidence: 99%