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 evaluated as indicated in comments:
L - Sharon G. Lias

Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
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

View reactions leading to Ca+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)6.11316 ± 0.00002eVN/AN/AL

Electron affinity determinations

EA (eV) Method Reference Comment
0.024546 ± 0.000087LPESPetrunin, Andersen, et al., 1996B
0.0184 ± 0.0025LPDWalter and Peterson, 1992B
0.0175 ± 0.0030EFDNadeau, Zhao, et al., 1992B
0.0430 ± 0.0070LPDPegg, Thompson, et al., 1987B

Ionization energy determinations

IE (eV) Method Reference Comment
6.11316EVALLide, 1992LL
6.0 ± 0.3EILau and Hildenbrand, 1990LL
6.11316SKelly, 1987LBLHLM
6.11316 ± 0.00002SSugar and Corliss, 1985LBLHLM
6.08 ± 0.06EIRauh and Ackermann, 1979LLK
6.0 ± 0.3EIKleinschmidt and Hildenbrand, 1978LLK
6.06 ± 0.05EIRauh and Ackermann, 1974LLK
6.11316 ± 0.00002SBrown, Tilford, et al., 1973LLK
~6.1EIOkudaira, 1970RDSH
6.113SMoore, 1970RDSH
6.11313SRisberg, 1968RDSH
6.21 ± 0.09SIZinkiewicz, 1553RDSH


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, Andersen, et al., 1996
Petrunin, V.V.; Andersen, H.H.; Balling, P.; Andersen, T., Structural Properties of the Negative Calcium Ion: Binding Energies and Fine-structure Splitting, Phys. Rev. Lett., 1996, 76, 5, 744, . [all data]

Walter and Peterson, 1992
Walter, C.W.; Peterson, J.R., Shape Resonance in Ca- Photodetachment and the Electron Affinity of Ca(1S), Phys. Rev. Lett., 1992, 68, 15, 2281, . [all data]

Nadeau, Zhao, et al., 1992
Nadeau, M.J.; Zhao, X.L.; Garwan, M.A.; Litherland, A.E., Ca Negative-Ion Binding Energy, Phys. Rev. A, 1992, 46, 7, R3588, . [all data]

Pegg, Thompson, et al., 1987
Pegg, D.J.; Thompson, J.S.; Compton, R.N.; Alton, G.D., Evidence for a Stable Negative Ion of Calcium, Phys. Rev. Lett., 1987, 59, 20, 2267, . [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 and Hildenbrand, 1990
Lau, K.H.; Hildenbrand, D.L., High-temperature equilibrium studies of the gaseous thorium chlorides, J. Chem. Phys., 1990, 92, 6124. [all data]

Kelly, 1987
Kelly, R.L., Atomic and ionic spectrum lines of hydrogen through kryton, J. Phys. Chem. Ref. Data, 1987, 16. [all data]

Sugar and Corliss, 1985
Sugar, J.; Corliss, C., Atomic energy levels of the iron period elements: Potassium through nickel, J. Phys. Chem. Ref. Data, 1985, 14. [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]

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]

Brown, Tilford, et al., 1973
Brown, C.M.; Tilford, S.G.; Ginter, M.L., Absorption spectrum of Ca I in the 1580-2090A region, J. Opt. Soc. Am., 1973, 63, 1454. [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]

Risberg, 1968
Risberg, G., The spectrum of atomic calcium, Ca I, and extensions to the analysis of Ca II, Ark. Fys., 1968, 37, 231. [all data]

Zinkiewicz, 1553
Zinkiewicz, J.M., Determination of the ionization potential of Ca and Mg atoms by the surface ionization method using a mass spectrometer, Proc. Colloq. Spectros. Intern., 14th Debrecen, Hung., 1967,, 1553, 3. [all data]


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