Monopotassium monooxide
- Formula: KO
- Molecular weight: 55.0977
- IUPAC Standard InChI: InChI=1S/K.O
- IUPAC Standard InChIKey: RQPCXPDUSNVHSU-UHFFFAOYSA-N
- CAS Registry Number: 12401-70-6
- Chemical structure:
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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 January, 1977
| Symbol | Meaning |
|---|---|
| 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) |
| State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A 2Π | (347) 1 | (442) 1 | (2.33) 1 | |||||||||
| X 2Σ+ | 0 1 | (384) 2 | (2.22) 1 |
Notes
| 1 | Ab initio calculation by So and Richards, 1975. The relative position of the two states is in accordance with results of a magnetic deflection analysis of M + NO2 scattering products (M = alkali metal) by Herm and Herschbach, 1970. |
| 2 | Fundamental in solid nitrogen matrix Spiker and Andrews, 1973; the ab initio value is ωe = 467 cm-1 So and Richards, 1975. |
| 3 | From a merging beam study of the reaction CO+ (K,C) KO+ Rol, Entemann, et al., 1974. |
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.
So and Richards, 1975
So, S.P.; Richards, W.G.,
The electronic ground states of alkali monoxides,
Chem. Phys. Lett., 1975, 32, 227. [all data]
Herm and Herschbach, 1970
Herm, R.R.; Herschbach, D.R.,
Molecular beam kinetics: reactions of alkali atoms with NO2 and CH3NO2,
J. Chem. Phys., 1970, 52, 5783. [all data]
Spiker and Andrews, 1973
Spiker, R.C., Jr.; Andrews, L.,
Matrix reactions of Na, K, Rb, and Cs atoms with N2O: infrared spectra geometries of K2O, Rb2O, and Cs2O,
J. Chem. Phys., 1973, 58, 713. [all data]
Rol, Entemann, et al., 1974
Rol, P.K.; Entemann, E.A.; Wendell, K.L.,
Merging beams studies of Na, K, and Mg collisions with atmospheric ions,
J. Chem. Phys., 1974, 61, 2050. [all data]
Notes
Go To: Top, Constants of diatomic molecules, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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