Tetrasulfur
- Formula: S4
- Molecular weight: 128.260
- CAS Registry Number: 19269-85-3
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Gas phase ion energetics data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess
View reactions leading to S4+ (ion structure unspecified)
Electron affinity determinations
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| 2.220 ± 0.030 | LPD | Hunsicker, Jones, et al., 1995 | Vertical Detachment Energy: 2.42±0.05 eV); B |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 10.1 ± 0.2 | EI | Rosinger, Grade, et al., 1983 | LBLHLM |
| 10.4 ± 0.5 | EI | Hagemann, 1962 | RDSH |
References
Go To: Top, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Hunsicker, Jones, et al., 1995
Hunsicker, S.; Jones, R.O.; Gantefor, G.,
Rings and chains in sulfur cluster anions S- to S-9(-): Theory (simulated annealing) and experiment (photoelectron detachment),
J. Chem. Phys., 1995, 102, 15, 5917, https://doi.org/10.1063/1.469326
. [all data]
Rosinger, Grade, et al., 1983
Rosinger, W.; Grade, M.; Hirschwald, W.,
Detection of ion states of S2 to S8 by electron impact,
Int. J. Mass Spectrom. Ion Processes, 1983, 47, 239. [all data]
Hagemann, 1962
Hagemann, R.,
Determination de la chaleur de formation de S2O par spectrometrie de masse,
Compt. Rend., 1962, 255, 1102. [all data]
Notes
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- Symbols used in this document:
EA Electron affinity - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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