Molecular beam photoionization of (H2S)n, n = 1–7
- 1 November 1981
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 75 (9) , 4208-4213
- https://doi.org/10.1063/1.442649
Abstract
The photoionization thresholds of polymers of hydrogen sulfide (H2S)n were measured for n = 1–7. They are, for increasing values of n, 10.449±0.006, 9.74±0.01, 9.63±0.01, 9.61±0.01, 9.58±0.01, 9.50±0.02, and 9.63±0.03 eV, respectively. The sequence of ionization thresholds with increasing n does not correlate well with a linear relationship to 1/n as do other nonmetal clusters reported previously. We find a binding energy for (H2S)2+ of 0.737±0.012 eV. This value diminishes for each successive cluster to n = 5. At n = 6 the incremental binding is almost as large as for trimer formation while formation of n = 7 is endoergic, that is, (H2S)7+ is unstable with respect to (H2S)6++H2S.Keywords
This publication has 31 references indexed in Scilit:
- Absorption spectrum of the H2S molecule in the vacuum ultraviolet regionCanadian Journal of Physics, 1979
- Vibrational and Vibronic Structure in the Valence Electron Spectrum of H2SPhysica Scripta, 1976
- Photoelectron spectra and valence shell orbital structures of groups V and VI hydridesProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1972
- Hydrogen bonds involving sulfur. I. Hydrogen sulfide dimerJournal of the American Chemical Society, 1971
- Absorption and Photoionization Cross Sections of H2O and H2SThe Journal of Chemical Physics, 1964
- Ionization potentials of some moleculesJournal of Quantitative Spectroscopy and Radiative Transfer, 1962
- EXCITED STATES OF THE MOLECULAR IONS OF HYDROGEN FLUORIDE, HYDROGEN IODIDE, WATER, HYDROGEN SULPHIDE, AND AMMONIACanadian Journal of Chemistry, 1958
- The far ultra-violet absorption spectra of the hydrides and deuterides of sulphur, selenium and tellurium and of the methyl derivatives of hydrogen sulphideProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1950
- The ionisation potentials of polyatomic molecules. I. Introduction and the ionisation potentials of H2O and H2STransactions of the Faraday Society, 1948
- The Far Ultraviolet Absorption Spectra and Ionization Potentials of H2O and H2SThe Journal of Chemical Physics, 1936