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Helium, compound with neon (1:1)


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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

IE (eV) Method Reference Comment
20.87SDabrowski and Herzberg, 1978LLK

Constants of diatomic molecules

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

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Klaus P. Huber and Gerhard H. Herzberg

Data collected through September, 1976

Symbols used in the table of constants
SymbolMeaning
State electronic state and / or symmetry symbol
Te minimum electronic energy (cm-1)
ωe vibrational constant – first term (cm-1)
ωexe vibrational constant – second term (cm-1)
ωeye vibrational constant – third term (cm-1)
Be rotational constant in equilibrium position (cm-1)
αe rotational constant – first term (cm-1)
γe rotation-vibration interaction constant (cm-1)
De centrifugal distortion constant (cm-1)
βe rotational constant – first term, centrifugal force (cm-1)
re internuclear distance (Å)
Trans. observed transition(s) corresponding to electronic state
ν00 position of 0-0 band (units noted in table)
Diatomic constants for 4He(20)Ne
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
Similar but unclassified bands near other strong Ne lines.
Tanaka and Yoshino, 1972
F  [120] 1 2         F larrow X 3 162050
Tanaka and Yoshino, 1972
E  [40] 1 4         E larrow X 3 161340
Tanaka and Yoshino, 1972
D  [30] 1 5         D larrow X 3 159590
Tanaka and Yoshino, 1972
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
C  [100] 1 6         C larrow X 7 V 159050 H
Tanaka and Yoshino, 1972
B  [40] 1 8         B larrow X 3 158860
Tanaka and Yoshino, 1972
A  [150] 1 9         A larrow X 7 V 158440 H
Tanaka and Yoshino, 1972
X 1Sigma+ 0 10         3.21 11 12 

Notes

1First observed DeltaG, not necessarily DeltaG(1/2).
2Progression of five bands converging to 3d'[3/2]1u of Ne.
3Very diffuse features.
4Progression of six bands converging to 3d[1/2]1u of Ne.
5Progression of four bands converging over a maximum to 4s'[1/2]1u of Ne.
6Progression of six bands converging to 4s'[1/2]1u of Ne.
7Diffuse band heads.
8Progression of four bands converging over a maximum to 4s[3/2]1u of Ne.
9Progression of three bands converging to 4s[3/2]1u of Ne.
10Only v=0 is bound; see Bobetic and Barker, 1976.
11From molecular beam scattering measurements Chen, Siska, et al., 1973.
12Theoretical dipole moment function Matcha and Nesbet, 1967.

References

Go To: Top, Gas phase ion energetics data, Constants of diatomic molecules, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Dabrowski and Herzberg, 1978
Dabrowski, I.; Herzberg, G., The spectrum of HeNe+, J. Mol. Spectrosc., 1978, 73, 183. [all data]

Tanaka and Yoshino, 1972
Tanaka, Y.; Yoshino, K., Absorption spectra of Ne2 and HeNe molecules in the vacuum-UV region, J. Chem. Phys., 1972, 57, 2964. [all data]

Bobetic and Barker, 1976
Bobetic, M.V.; Barker, J.A., Vibrational levels of heteronuclear rare gas van der Waals molecules, J. Chem. Phys., 1976, 64, 2367-2369. [all data]

Chen, Siska, et al., 1973
Chen, C.H.; Siska, P.E.; Lee, Y.T., Intermolecular potentials from crossed beam differential elastic scattering measurements. VIII. He+Ne, He+Ar, He+Kr, and He+Xe, J. Chem. Phys., 1973, 59, 2, 601-610. [all data]

Matcha and Nesbet, 1967
Matcha, R.L.; Nesbet, R.K., Electric dipole moments of rare-gas diatomic molecules, Phys. Rev., 1967, 160, 1, 72-75. [all data]


Notes

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