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

ClXe


Constants of diatomic molecules

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 by: Klaus P. Huber and Gerhard H. Herzberg

Data collected through November, 1977

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 (132)Xe35Cl
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
D (1/2)           D lrarrow X 1 42450
Shuker, 1976
B (2Sigma+) 32405.0 195.2 H 0.54       (2.94) 2 B lrarrow X 3 V 32489.3 H
Golde, 1975; Velazco and Setser, 1975; Brau and Ewing, 1975; Tellinghuisen, Hoffman, et al., 1976
X (2Sigma+) 0 26.3 H -0.28 4 -.067      (3.18) 2 5  
Adrian and Bowers, 1976

Notes

1Observed in a low-pressure discharge through Xe + Cl2 Shuker, 1976. Absorption bands at similar wavelengths are observed in inert gas matrices Ault and Andrews, 1976.
2Based on potential functions chosen for best representation of observed levels and intensities Tellinghuisen, Hoffman, et al., 1976.
3Observed in emission in the reaction of metastable (3P2) Xe atoms with Cl2, NOCl, SOCl2, CCl4 Golde, 1975, Velazco and Setser, 1975 or on electron bombardment of mixtures of Ar + Xe + Cl2 and Xe + HCl or Cl2 at high pressure (of the order of 1 atm) Brau and Ewing, 1975, Tellinghuisen, Hoffman, et al., 1976. Under the latter conditions laser action has been detected Ewing and Brau, 1975, Tellinghuisen, Hoffman, et al., 1976. Observed in absorption and emission in inert gas matrices Ault and Andrews, 1976.
4missing note
5ESR sp. 7
6Extrapolation of the vibrational levels in X 2Sigma Tellinghuisen, Hoffman, et al., 1976.
7In argon at 4.2 K.

References

Go To: Top, 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.

Shuker, 1976
Shuker, R., Excimer emission band at 235.5 nm in the XeCl molecule, Appl. Phys. Lett., 1976, 29, 785. [all data]

Golde, 1975
Golde, M.F., Interpretation of the oscillatory spectra of the inert-gas halides, J. Mol. Spectrosc., 1975, 58, 261. [all data]

Velazco and Setser, 1975
Velazco, J.E.; Setser, D.W., Bound-free emission spectra of diatomic xenon halides, J. Chem. Phys., 1975, 62, 1990. [all data]

Brau and Ewing, 1975
Brau, C.A.; Ewing, J.J., Emission spectra of XeBr, XeCl, XeF, and KrF, J. Chem. Phys., 1975, 63, 4640. [all data]

Tellinghuisen, Hoffman, et al., 1976
Tellinghuisen, J.; Hoffman, J.M.; Tisone, G.C.; Hays, A.K., Spectroscopic studies of diatomic noble gas halides: analysis of spontaneous and stimulated emission from XeCl, J. Chem. Phys., 1976, 64, 2484. [all data]

Adrian and Bowers, 1976
Adrian, F.J.; Bowers, V.A., ESR spectrum of XeCl in argon at 4.2K, J. Chem. Phys., 1976, 65, 4316. [all data]

Ault and Andrews, 1976
Ault, B.S.; Andrews, L., Absorption and emission spectra of matrix-isolated XeF, KrF, XeCl, and XeBr, J. Chem. Phys., 1976, 65, 4192. [all data]

Ewing and Brau, 1975
Ewing, J.J.; Brau, C.A., Laser action on the 2«SIGMA»1/2+ --> 2«SIGMA»1/2+ bands of KrF and XeCl, Appl. Phys. Lett., 1975, 27, 350. [all data]


Notes

Go To: Top, Constants of diatomic molecules, References