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europium oxide

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 October, 1975

Symbols used in the table of constants
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 (153)Eu16O
Emission spectrum from 14000 to 25000 cm-1.
missing citation; Edelstein, Eckstrom, et al., 1974; Dickson and Zare, 1975
X 0 [668.0] 1          
Gabelnick, Reedy, et al., 1974


1In Ar matrix at 15 K. For Eu18O at 633.7 cm-1. Derived constants are omegae= 671.8 Gabelnick, Reedy, et al., 1974, omegaexe= 1.9 Gabelnick, Reedy, et al., 1974.
2Thermochemical value (mass-spectrom.) Hildenbrand and Murad, 1975. Considerably higher values (5.72 eV) in Ames, Walsh, et al., 1967, Smoes, Coppens, et al., 1969, Dickson and Zare, 1975.


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

Edelstein, Eckstrom, et al., 1974
Edelstein, S.A.; Eckstrom, D.J.; Perry, B.E.; Benson, S.W., Chemiluminescence studies. III. Pressure dependent photon yields for several metal-N2O reactions, J. Chem. Phys., 1974, 61, 11, 4932-4933. [all data]

Dickson and Zare, 1975
Dickson, C.R.; Zare, R.N., Beam-gas chemiluminescent reactions of Eu and Sm with O3, N2O, NO2 and F2, Chem. Phys., 1975, 7, 361. [all data]

Gabelnick, Reedy, et al., 1974
Gabelnick, S.D.; Reedy, G.T.; Chasanov, M.G., Infrared spectra and structure of some matrix-isolated lanthanide and actinide oxides, J. Chem. Phys., 1974, 60, 3, 1167, https://doi.org/10.1063/1.1681128 . [all data]

Hildenbrand and Murad, 1975
Hildenbrand, D.L.; Murad, E., Redetermination of the dissociation energy of europium monoxide and its bearing on atmospheric release experiments, Z. Naturforsch. A, 1975, 30, 1087-1089. [all data]

Ames, Walsh, et al., 1967
Ames, L.L.; Walsh, P.N.; White, D., Rare earths. IV. Dissocaition energies of the gaseous monoxides of the rare earths, J. Phys. Chem., 1967, 71, 2707. [all data]

Smoes, Coppens, et al., 1969
Smoes, S.; Coppens, P.; Bergman, C.; Drowart, J., Mass spectrometric determination of the dissociation energies of the gaseous rare earth monosulphides, Trans. Faraday Soc., 1969, 65, 682. [all data]


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