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Dipotassium


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

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

Quantity Value Units Method Reference Comment
IE (evaluated)4.062 ± 0.0015eVN/AN/AL

Electron affinity determinations

EA (eV) Method Reference Comment
0.497 ± 0.012LPESEaton, Sarkas, et al., 1992Vertical Detachment Energy: 0.550±0.010 eV.; B
0.493 ± 0.012LPESMcHugh, Eaton, et al., 1989Vertical Detachment Energy: 0.550±0.010 eV; B

Ionization energy determinations

IE (eV) Method Reference Comment
4.0637 ± 0.0002PIKappes, Radi, et al., 1985LBLHLM
4.0637 ± 0.0003PIBroyer, Chevaleyre, et al., 1985LBLHLM
4.06075 ± 0.00015LSLeutwyler, Hofmann, et al., 1981LLK
4.059 ± 0.001LSHerrmann, Schumacher, et al., 1978LLK
4.0607 ± 0.0001PIHerrmann, Schumacher, et al., 1978LLK
4.05 ± 0.05PIHerrmann, Schumacher, et al., 1978LLK
4.059 ± 0.001PIHerrmann, Leutwyler, et al., 1978LLK
3.9EIZmbov, Wu, et al., 1977LLK
4.0 ± 0.1PIFoster, Leckenby, et al., 1969RDSH
~4.1SRobertson and Barrow, 1961RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
K+4.85KPIHerrmann, Leutwyler, et al., 1978LLK

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.

Eaton, Sarkas, et al., 1992
Eaton, J.G.; Sarkas, H.W.; Arnold, S.T.; Mchugh, K.M.; Bowen, K.H., Negative Ion Photoelectron Spectroscopy of the Heteronuclear Alkali-Metal Dimer and Trimer Anions - NaK-, KRb-, RbCS-, KCs-, Na2K-, and K2Cs, Chem. Phys. Lett., 1992, 193, 1-3, 141, https://doi.org/10.1016/0009-2614(92)85697-9 . [all data]

McHugh, Eaton, et al., 1989
McHugh, K.M.; Eaton, J.G.; Lee, G.H.; Sarkas, H.W.; Kidder, L.H.; Snodgrass, J.T.; Manaa, M.R.; Bowen, K.H., Photoelectron Spectra of the alkali metal cluster Anions: Na-,n=2-5, K-,n=2-7, Rb-,n=2-3, and Cs-,n=2-3, J. Chem. Phys., 1989, 91, 6, 3792, https://doi.org/10.1063/1.456861 . [all data]

Kappes, Radi, et al., 1985
Kappes, M.M.; Radi, P.; Schar, M.; Schumacher, E., Photoionization measurements on dialkali monohalides generated in supersonic nozzle beams, Chem. Phys. Lett., 1985, 113, 243. [all data]

Broyer, Chevaleyre, et al., 1985
Broyer, M.; Chevaleyre, J.; Delacretaz, G.; Fayet, P.; Woste, L., One- and two-photon ionization of alkaline clusters, Surf. Sci., 1985, 156, 342. [all data]

Leutwyler, Hofmann, et al., 1981
Leutwyler, S.; Hofmann, M.; Harri, H.-P.; Schumacher, E., The adiabatic ionization potentials of the alkali dimers Na2, NaK and K2, Chem. Phys. Lett., 1981, 77, 257. [all data]

Herrmann, Schumacher, et al., 1978
Herrmann, A.; Schumacher, E.; Woste, L., Preparation and photoionization potentials of molecules of sodium, potassium and mixed atoms, J. Chem. Phys., 1978, 68, 2327. [all data]

Herrmann, Leutwyler, et al., 1978
Herrmann, A.; Leutwyler, S.; Schumacher, E.; Woste, L., 38. On metal-atom clusters IV. Photoionization thresholds and multiphoton ionization spectra of alkali-metal molecules, Helv. Chim. Acta, 1978, 61, 453. [all data]

Zmbov, Wu, et al., 1977
Zmbov, K.F.; Wu, C.H.; Ihle, H.R., A mass spectrometric study of heteronuclear diatomic alkali metal molecules. Dissociation energies ionization potentials of NaLi, KLi, NaK, J. Chem. Phys., 1977, 67, 4603. [all data]

Foster, Leckenby, et al., 1969
Foster, P.J.; Leckenby, R.E.; Robbins, E.J., The ionization potentials of clustered alkali metal atoms, J. Phys. B:, 1969, 2, 478. [all data]

Robertson and Barrow, 1961
Robertson, E.W.; Barrow, R.F., Rotational analysis oi the C1«pi»u-X1+g system of K2, and the ionisation potential of K2, Proc. Chem. Soc., 1961, 329. [all data]


Notes

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