Arsenic tetramer
- Formula: As4
- Molecular weight: 299.68640
- CAS Registry Number: 12187-08-5
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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
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 9.3 ± 0.3 | EI | Hirayama, Straw, et al., 1985 | LBLHLM |
| 10.1 ± 0.4 | EI | DeMaria, Malaspina, et al., 1970 | RDSH |
| 9.07 ± 0.07 | EI | Westmore, Mann, et al., 1964 | RDSH |
| 9.9 ± 0.2 | EI | Gutbier, 1961 | RDSH |
| 8.92 | PE | Ebel, Dieck, et al., 1981 | Vertical value; LLK |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| As3+ | 12.0 ± 0.6 | As | EI | Hirayama, Straw, et al., 1985 | LBLHLM |
| As3+ | 13.5 ± 0.4 | As | EI | DeMaria, Malaspina, et al., 1970 | 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.
Hirayama, Straw, et al., 1985
Hirayama, C.; Straw, R.D.; Hobgood, H.M.,
Equilibria over gas in the Knudsen cell range,
J. Less-Common Met., 1985, 109, 331. [all data]
DeMaria, Malaspina, et al., 1970
DeMaria, G.; Malaspina, L.; Piacente, V.,
Mass spectrometric study of the GaAs system,
J. Chem. Phys., 1970, 52, 1019. [all data]
Westmore, Mann, et al., 1964
Westmore, J.B.; Mann, K.H.; Tickner, A.W.,
Mass spectrometric study of the nonstoichiometric vaporization of cadmium arsenide,
J. Phys. Chem., 1964, 68, 606. [all data]
Gutbier, 1961
Gutbier, H.,
Massenspektrometrische Untersuchungen der Verdampfungsvorgange bei einigen Verbindungen mit Zinkblende-Gitter im Temperaturbereich um 1000 degree K,
Z. Naturforsch. A:, 1961, 16, 268. [all data]
Ebel, Dieck, et al., 1981
Ebel, S.; Dieck, T.; Walther, H.,
Photoelectron spectra of group V compounds, As4 and As2,
Inorg. Chim. Acta, 1981, 53, 101. [all data]
Notes
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- Symbols used in this document:
AE Appearance energy - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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