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DK


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 39KD
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
A 1Sigma+ 19060 161 Z -3.3 1  0.659 -0.0127  2.7E-5  3.65 A lrarrow X R 18790 Z
Imanishi, 1941; Bartky, 1966
X 1Sigma+ 0 706.6 Z 7.73  1.7539 0.0318  4.7E-5  2.2403  

Notes

1The DeltaG(v+1/2) curve has a maximum at v ~16.
2The DeltaG(v+1/2) curve has a maximum at v ~11.
3The Bv curve has a maximum at v ~7.
4Radiative lifetime tau < 10 ns Cruse and Zare, 1974.
5The Bv curve has a maximum at v ~11.

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.

Imanishi, 1941
Imanishi, S., The spectrum of the potassium deuteride molecule, Sci. Pap. Inst. Phys. Chem. Res. Jpn., 1941, 39, 45. [all data]

Bartky, 1966
Bartky, I.R., The A1«SIGMA»-X1«SIGMA» transition of 39KH and 39KD. Vibrational numbering and molecular constants, J. Mol. Spectrosc., 1966, 20, 299. [all data]

Cruse and Zare, 1974
Cruse, J.A.; Zare, R.N., Fluorescence of the KH molecule, J. Chem. Phys., 1974, 60, 1182. [all data]


Notes

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