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potassium hydride


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 39KH
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
Theoretical potential energy curves, coupling between molecular states Numrich and Truhlar, 1975.
Fluctuating continuum in emission, 25000 - 33000 cm-1.
Hori, 1933
A 1Sigma+ 19052.8 228.2 Z -5.75 1  1.269 -0.0375 2  9.5E-5  3.68 A 3 lrarrow X R 188680.1 Z
Almy and Hause, 1932; Hori, 1933, 2; Almy and Beiler, 1942; Bartky, 1966
X 2Sigma+ 0 983.6 Z 14.32  3.4123 0.0817  15.3E-5  2.2425  

Notes

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

Numrich and Truhlar, 1975
Numrich, R.W.; Truhlar, D.G., Mixing of ionic and covalent configurations for NaH, KH, and MgH+. Potential energy curves and couplings between molecular states, J. Phys. Chem., 1975, 79, 2745. [all data]

Hori, 1933
Hori, (Reference not verified), Mem. Ryojun Coll. Eng., 1933, 6, 115. [all data]

Almy and Hause, 1932
Almy, G.M.; Hause, C.D., The spectrum of potassium hydride, Phys. Rev., 1932, 42, 242. [all data]

Hori, 1933, 2
Hori, (Reference not verified), Mem. Ryojun Coll. Eng., 1933, 6, 1. [all data]

Almy and Beiler, 1942
Almy, G.M.; Beiler, A.C., Potential energy curve of the excited state of KH, Phys. Rev., 1942, 61, 476. [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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