TY - JOUR
T1 - Distinguishihg ionization from sulfur p-type lone pair orbitals and carbon π-molecular orbitals by he I/He II photoelectron spectroscopy
AU - Glass, Richard S.
AU - Broeker, Jeffrey L.
AU - Jatcko, Mark E.
N1 - Funding Information:
Acknowledgments: The authors gratefully acknowledge support of this work by the National Institutes of Health (Grant No. HL 15104). We also thank Professor Dennis Lichtenberger of the University of Arizona for helpful discussionsl. The photoelectron spectra were measured in the Laboratory for Electron Spectroscopy and Surface Analysis.
PY - 1989
Y1 - 1989
N2 - He I and He II photoelectron spectra of methylthiomethylbenzene (2), 2-(1-nethylethylthio) ethylbenzene (3), 1-naphthalenemethanethiol (4), 1,1-dimethylethylthiobenzene (5), benzenethiol (6), and methylthiobenzene (7) are reported. Comparison of the He I and He II band areas for each compound provide a reliable basis for assigning the bands as due to photoionization from a carbon π-molecular orbital, sulfur p-type lone pair orbital, or mixed orbital.Ionization from a molecular orbital localized on sulfur results in a large decrease in intensity using He II compared with He I as the source relative to ionization from carbon π-molecular orbitals. Mixed orbitals with both sulfur and carbon character also give rise to diminished intensities in the He II versus He I spectra relative to pure carbon orbitais, but proportionately less decrease than pure sulfur orbitais.
AB - He I and He II photoelectron spectra of methylthiomethylbenzene (2), 2-(1-nethylethylthio) ethylbenzene (3), 1-naphthalenemethanethiol (4), 1,1-dimethylethylthiobenzene (5), benzenethiol (6), and methylthiobenzene (7) are reported. Comparison of the He I and He II band areas for each compound provide a reliable basis for assigning the bands as due to photoionization from a carbon π-molecular orbital, sulfur p-type lone pair orbital, or mixed orbital.Ionization from a molecular orbital localized on sulfur results in a large decrease in intensity using He II compared with He I as the source relative to ionization from carbon π-molecular orbitals. Mixed orbitals with both sulfur and carbon character also give rise to diminished intensities in the He II versus He I spectra relative to pure carbon orbitais, but proportionately less decrease than pure sulfur orbitais.
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U2 - 10.1016/0040-4020(89)80124-3
DO - 10.1016/0040-4020(89)80124-3
M3 - Article
AN - SCOPUS:0000912234
VL - 45
SP - 1263
EP - 1272
JO - Tetrahedron
JF - Tetrahedron
SN - 0040-4020
IS - 5
ER -