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DF+


Constants of diatomic molecules

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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 by: Klaus P. Huber and Gerhard H. Herzberg

Data collected through January, 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 D19F+
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
A 2Sigma+ 25490 1080 1 55        (A-X) 24900 1
X 2Pii 0 2 2250 1 45.8         

Notes

1From the photoelectron spectrum of DF Berkowitz, 1971, Walker, Dehmer, et al., 1973, Guyon, Spohr, et al., 1976. The optical spectrum of DF+ has not yet been analyzed.
2A = -266 cm-1, from incompletely resolved photoelectron peaks Guyon, Spohr, et al., 1976.
3From D00(DF) + I.P.(D) - I.P.(DF); from D00(HF+) one obtains 3.473eV.

References

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

Berkowitz, 1971
Berkowitz, J., Experimental potential energy curves for X2{PI} and 2«SIGMA»+ states of HF+, Chem. Phys. Lett., 1971, 11, 21. [all data]

Walker, Dehmer, et al., 1973
Walker, T.E.H.; Dehmer, P.M.; Berkowitz, J., Rotational band shapes in photoelectron spectroscopy: HF DF, J. Chem. Phys., 1973, 59, 4292. [all data]

Guyon, Spohr, et al., 1976
Guyon, P.-M.; Spohr, R.; Chupka, W.A.; Berkowitz, J., Threshold photoelectron spectra of HF, DF, and F2, J. Chem. Phys., 1976, 65, 1650-1658. [all data]


Notes

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