Cesium iodide
- Formula: CsI
- Molecular weight: 259.80992
- IUPAC Standard InChI: InChI=1S/Cs.HI/h;1H/q+1;/p-1
- IUPAC Standard InChIKey: XQPRBTXUXXVTKB-UHFFFAOYSA-M
- CAS Registry Number: 7789-17-5
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: caesium iodide
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Gas phase ion energetics data
Go To: Top, References, Notes
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
B - John E. Bartmess
Electron affinity determinations
| EA (eV) | Reference | Comment |
|---|---|---|
| 0.630 ± 0.040 | Miller, Leopold, et al., 1986 | Extrapolated by polarizability and radius from experimental data.; B |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 7.1 | PE | Benson, Novak, et al., 1987 | LBLHLM |
| 7.2 ± 0.2 | EI | Viswanathan and Hilpert, 1984 | LBLHLM |
| 6.7 ± 0.4 | EI | Emons, Horlbeck, et al., 1982 | LBLHLM |
| 7.1 ± 0.1 | PE | Potts and Price, 1977 | LLK |
| 6.5 ± 0.2 | PE | Smith and Pong, 1975 | LLK |
| 7.1 ± 0.1 | PE | Potts, Williams, et al., 1974 | LLK |
| 7.10 ± 0.05 | PE | Berkowitz, Dehmer, et al., 1973 | LLK |
| 7.25 ± 0.05 | PI | Berkowitz, 1969 | RDSH |
| 7.46 ± 0.05 | PE | Timoshenko and Akopyan, 1974 | Vertical value; LLK |
| 7.2 | PE | Goodman, Allen, et al., 1974 | Vertical value; LLK |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| Cs+ | 7.46 ± 0.05 | I | PI | Berkowitz, 1969 | RDSH |
| I+ | 14.1 ± 0.3 | Cs | EI | Platel, 1965 | RDSH |
| Cs+ | 17.60 ± 0.04 | I(-) | PE | Potts and Price, 1977 | Vertical value; LLK |
| Cs+ | 19.31 ± 0.04 | I(-) | PE | Potts and Price, 1977 | Vertical value; LLK |
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.
Miller, Leopold, et al., 1986
Miller, T.M.; Leopold, D.G.; Murray, K.K.; Lineberger, W.C.,
Electron Affinities of the Alkali Halides and the Structure of their Negative Ions,
J. Chem. Phys., 1986, 85, 5, 2368, https://doi.org/10.1063/1.451091
. [all data]
Benson, Novak, et al., 1987
Benson, J.M.; Novak, I.; Potts, A.W.,
Photoelectron spectroscopy of the caesium halides using synchrotron radiation,
J. Phys. B:, 1987, 20, 6257. [all data]
Viswanathan and Hilpert, 1984
Viswanathan, R.; Hilpert, K.,
Mass spectrometric study of the vaporization of cesium iodide and thermochemistry of (CsI)2(g) and (CsI)3(g),
Ber. Bunsen-Ges. Phys. Chem., 1984, 88, 125. [all data]
Emons, Horlbeck, et al., 1982
Emons, H.-H.; Horlbeck, W.; Kiessling, D.,
Massenspektrometrische untersuchung der gasphase uber alkalimetalliodiden,
Z. Anorg. Allg. Chem., 1982, 488, 212. [all data]
Potts and Price, 1977
Potts, A.W.; Price, W.C.,
Photoelectron studies of ionic materials using molecular beam techniques,
Phys. Scr., 1977, 16, 191. [all data]
Smith and Pong, 1975
Smith, J.A.; Pong, W.,
Ultraviolet photoelectron spectra of cesium halides,
Phys. Rev. B:, 1975, 12, 5931. [all data]
Potts, Williams, et al., 1974
Potts, A.W.; Williams, T.A.; Price, W.C.,
Photoelectron spectra and electronic structure of diatomic alkali halides,
Proc. Roy. Soc. London A, 1974, 341, 147. [all data]
Berkowitz, Dehmer, et al., 1973
Berkowitz, J.; Dehmer, J.L.; Walker, T.E.H.,
PES of high-temperature vapors. IV. The cesium halides. Effect of spin-orbit interaction on the photoelectron and mass spectra of the alkali halides,
J. Chem. Phys., 1973, 59, 3645. [all data]
Berkowitz, 1969
Berkowitz, J.,
Photoionization of high-temperature vapors. V. Cesium halides; chemical shift of autoionization,
J. Chem. Phys., 1969, 50, 3503. [all data]
Timoshenko and Akopyan, 1974
Timoshenko, M.M.; Akopyan, M.E.,
Photoelectron spectra of cesium halides,
High Energy Chem., 1974, 8, 175, In original 211. [all data]
Goodman, Allen, et al., 1974
Goodman, T.D.; Allen, J.D., Jr.; Cusachs, L.C.; Schweitzer, G.K.,
The photoelectron spectra of gaseous alkali halides,
J. Electron Spectrosc. Relat. Phenom., 1974, 3, 289. [all data]
Platel, 1965
Platel, G.,
Mesures des potentials d'apparition des ions obtenus par impact electronique dans la phase vapeur des iodures alcalins et des melanges LiI-MI,
J. Chim. Phys., 1965, 62, 1176. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy EA Electron affinity - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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