Home Symbol which looks like a small house Up Solid circle with an upward pointer in it


Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.

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:
LL - Sharon G. Lias and Joel F. Liebman
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

View reactions leading to Ba+ (ion structure unspecified)

Electron affinity determinations

EA (eV) Reference Comment
0.144620 ± 0.000044Petrunin, Volstad, et al., 1995EA may be to an excited Ba state; B

Ionization energy determinations

IE (eV) Method Reference Comment
5.21170EVALLide, 1992LL
5.3 ± 0.3EILau, Brittain, et al., 1989LL
5.17 ± 0.08EIRauh and Ackermann, 1979LLK
5.0 ± 0.3EIKleinschmidt and Hildenbrand, 1978LLK
5.0PEHildenbrand, 1977LLK
5.1 ± 0.2EIHilpert, Naoumidis, et al., 1975LLK
5.22 ± 0.03PEBrehm and Hofler, 1975LLK
5.2 ± 0.1EIRauh and Ackermann, 1974LLK
~5.2EIOkudaira, 1970RDSH
5.21169 ± 0.000007EIMoore, 1970RDSH


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.

Petrunin, Volstad, et al., 1995
Petrunin, V.V.; Volstad, J.D.; Balling, P.; Kristensen, K.; Andersen, T., Resonant Ionization Spectroscopy of Ba-: Metastable and Stable Ions, Phys. Rev. Lett., 1995, 75, 10, 1911, https://doi.org/10.1103/PhysRevLett.75.1911 . [all data]

Lide, 1992
Lide, D.R. (Editor), Ionization potentials of atoms and atomic ions in Handbook of Chem. and Phys., 1992, 10-211. [all data]

Lau, Brittain, et al., 1989
Lau, K.H.; Brittain, R.D.; Hildenbrand, D.L., High temperature thermodynamic studies of some gaseous thorium fluorides, J. Chem. Phys., 1989, 90, 1158. [all data]

Rauh and Ackermann, 1979
Rauh, E.G.; Ackermann, R.J., The first ionization potentials of the transition metals, J. Chem. Phys., 1979, 70, 1004. [all data]

Kleinschmidt and Hildenbrand, 1978
Kleinschmidt, P.D.; Hildenbrand, D.L., Dissociation energies of CaI, SrI, and BaI from high temperature mass spectrometry, J. Chem. Phys., 1978, 68, 2819. [all data]

Hildenbrand, 1977
Hildenbrand, D.L., Dissociation energies of CaBr, SrBr, BaBr, and BaCl from mass spectrometric studies of gaseous equilibria, J. Chem. Phys., 1977, 66, 3526. [all data]

Hilpert, Naoumidis, et al., 1975
Hilpert, K.; Naoumidis, A.; Wolff, G., Mass spectrometric study of the evaporation of BaAl2O4, High Temp. Sci., 1975, 7, 1. [all data]

Brehm and Hofler, 1975
Brehm, B.; Hofler, K., The 21.22-eV photoelectron spectrum of barium, Int. J. Mass Spectrom. Ion Phys., 1975, 17, 371. [all data]

Rauh and Ackermann, 1974
Rauh, E.G.; Ackermann, R.J., First ionization potentials of some refractory oxide vapors, J. Chem. Phys., 1974, 60, 1396. [all data]

Okudaira, 1970
Okudaira, S., Multiple ionization of Ca, Sr and Ba by electron impact, J. Phys. Soc. Jpn., 1970, 29, 409. [all data]

Moore, 1970
Moore, C.E., Ionization potentials and ionization limits derived from the analyses of optical spectra, Natl. Stand. Ref. Data Ser., (U.S. Natl. Bur. Stand.), 1970, 34, 1. [all data]


Go To: Top, Gas phase ion energetics data, References