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Praseodymium monoxide


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 July, 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 141Pr16O
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
The following classifications and analyses are by Shenyavskaya, Egorova, et al., 1973. Most of the bands are observed in emission and absorption.
for the following states, the first line refers to the upper state constants e.g. omega'e and the second line refers to the lower state constants e.g. omega"e
XXII           R 18961.2 H
Shenyavskaya, Egorova, et al., 1973
18703.6 786.4 H 4.07 1        R 18679.5 H
Watson, 1938; missing citation; Shenyavskaya, Egorova, et al., 1973
18703.6 834.0 H 2.56        R 18679.5 H
Watson, 1938; missing citation; Shenyavskaya, Egorova, et al., 1973
17886.5 785.4 H 2.93        R 17863.0 H
missing citation; Shenyavskaya, Egorova, et al., 1973
17886.5 832.2 H 2.01        R 17863.0 H
missing citation; Shenyavskaya, Egorova, et al., 1973
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
XIX 17588.0 791.8 H 4.00        R 17567.1 H
missing citation; Shenyavskaya, Egorova, et al., 1973
17588.0 833.1 H 3.05        R 17567.1 H
missing citation; Shenyavskaya, Egorova, et al., 1973
XVIII           R 17345.8 H
missing citation; Shenyavskaya, Egorova, et al., 1973
16631.4 790.0 H 4.49        R 16609.6 H
missing citation; Shenyavskaya, Egorova, et al., 1973
16631.4 831.9 H 1.75        R 16609.6 H
missing citation; Shenyavskaya, Egorova, et al., 1973
15464.6 785.9 H 2.70        R 15442.0 H
missing citation; Shenyavskaya, Egorova, et al., 1973
15464.6 830.7 H 2.00        R 15442.0 H
missing citation; Shenyavskaya, Egorova, et al., 1973
14461 [786.1] H         R 14438.5 H
missing citation; Shenyavskaya, Egorova, et al., 1973
14461 [830.9] H         R 14438.5 H
missing citation; Shenyavskaya, Egorova, et al., 1973
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
XIV 14436 [730.0] H         R 14384.0 H
missing citation; Shenyavskaya, Egorova, et al., 1973
14436 835.8 H 2.4        R 14384.0 H
missing citation; Shenyavskaya, Egorova, et al., 1973
XIII 14112.8 789.6 H 2.76        R 14090.1 H
Shenyavskaya, Egorova, et al., 1973
14112.8 835.0 H 2.25        R 14090.1 H
Shenyavskaya, Egorova, et al., 1973
14045 [754.0] H         R 14006.1 H
Shenyavskaya, Egorova, et al., 1973
14045 [830.8] H         R 14006.1 H
Shenyavskaya, Egorova, et al., 1973
13678 [788.0] H         R 13656.9 H
missing citation; Shenyavskaya, Egorova, et al., 1973
13678 [829.4] H         R 13656.9 H
missing citation; Shenyavskaya, Egorova, et al., 1973
13079 [754.4] H 2         R 13038.62 H
missing citation; Shenyavskaya, Egorova, et al., 1973
13079 835.8 H 2.35        R 13038.62 H
missing citation; Shenyavskaya, Egorova, et al., 1973
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
IX 12756.0 3 745.0 H 2.27        R 12710.8 H
missing citation; Shenyavskaya, Egorova, et al., 1973
12756.0 3 835.1 H 1.92        R 12710.8 H
missing citation; Shenyavskaya, Egorova, et al., 1973
VIII 11971 [733.5] H         R 11922.0 H
Shenyavskaya, Egorova, et al., 1973
11971 [831.0] H         R 11922.0 H
Shenyavskaya, Egorova, et al., 1973
11815.8 3 [741.03] Z 2.16 H 2        R 11770.33 Z
missing citation; missing citation; Shenyavskaya, Egorova, et al., 1973
11815.8 3 [831.78] Z 2.22 H        R 11770.33 Z
missing citation; missing citation; Shenyavskaya, Egorova, et al., 1973
11150 [754.0] H         R 11109.3 H
Shenyavskaya, Egorova, et al., 1973
11150 836.4 H 2.45        R 11109.3 H
Shenyavskaya, Egorova, et al., 1973
11021 [742] H         R 10976.2 H
Shenyavskaya, Egorova, et al., 1973
11021 [830.7] H         R 10976.2 H
Shenyavskaya, Egorova, et al., 1973
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
IV 10482 [740.2] H         R 10437.6 H
Shenyavskaya, Egorova, et al., 1973
10482 [829.6] H         R 10437.6 H
Shenyavskaya, Egorova, et al., 1973
III 10240.2 764.5 H 2.60        R 10204.7 H
Shenyavskaya, Egorova, et al., 1973
10240.2 835.8 H 3.25        R 10204.7 H
Shenyavskaya, Egorova, et al., 1973
10048 [728.1] H         R 9996.0 H
Shenyavskaya, Egorova, et al., 1973
10048 [831.2] H         R 9996.0 H
Shenyavskaya, Egorova, et al., 1973
9281 [735.3] H         R 9233.0 H
Shenyavskaya, Egorova, et al., 1973
9281 [830.5] H         R 9233.0 H
Shenyavskaya, Egorova, et al., 1973
From the IR SPectrum of PrO in and Ar matrix: DeltaG(1/2) = 17.1 for Pr16O, and 775.4 for Pr18O.
Gabelnick, Reedy, et al., 1974

Notes

1Different analysis by Watson, 1938
2Single P, Q, R branches; rot. analysis. 6
3 Venkitachalam, Krishnamurty, et al., 1972 suggest that systems VII and IX form the two components of a doublet system.
4Thermochemical value (mass-spectrometry) Walsh, Dever, et al., 1961, Ames, Walsh, et al., 1967, recalculated Smoes, Coppens, et al., 1969, Bergman, Coppens, et al., 1970.
5Corrected electron impact appearance potential Ackermann, Rauh, et al., 1976.
6Rotational constants obtained by Shenyavskaya, Egorova, et al., 1973. System X: B0' = 0.3459, D'0 = 3.1E-7; r'0 = 1.842 B0" = 0.3620, D'0 = 2.4E-7; r"0 = 1.801 . System VII: B1' = 0.3418; D'1 = 2.4E-7; B0' = 0.3414; D'0 = 1.1E-7; r'0 = 1.854 B1" = 0.3595; D"1 = 2.6E-7; B0" = 0.3610 ;D"0 = 2.6E-7; r"0 = 1.803: (B,D in cm-1, r in Å). The upper state of system VII is perturbed. Different rotational constants and band origins have been obtained by Venkitachalam, Krishnamurty, et al., 1972.

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.

Shenyavskaya, Egorova, et al., 1973
Shenyavskaya, E.A.; Egorova, I.V.; Lupanov, V.N., Electronic spectrum of praseodymium monoxide, J. Mol. Spectrosc., 1973, 47, 355. [all data]

Watson, 1938
Watson, W.W., Spectra of the monoxides of cerium and praseodymium, Phys. Rev., 1938, 53, 639. [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]

Venkitachalam, Krishnamurty, et al., 1972
Venkitachalam, T.V.; Krishnamurty, G.; Narasimham, N.A., Emission spectrum of PrO, Proc. Indian Acad. Sci. Sect. A, 1972, 76, 113. [all data]

Walsh, Dever, et al., 1961
Walsh, P.N.; Dever, D.F.; White, D., Rare Earths. III. A mass-spectrometric investigation of the isomolecular oxygen-exchange reactions of lanthanum, cerium, praseodymium and neodymium with their monoxides, J. Phys. Chem., 1961, 65, 1410. [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]

Bergman, Coppens, et al., 1970
Bergman, C.; Coppens, P.; Drowart, J.; Smoes, S., Mass spectrometric determination of the dissociation energies of the gaseous rare earth monoselenides and monotellurides, Trans. Faraday Soc., 1970, 66, 800. [all data]

Ackermann, Rauh, et al., 1976
Ackermann, R.J.; Rauh, E.G.; Thorn, R.J., The thermodynamics of ionization of gaseous oxides; the first ionization potentials of the lanthanide metals and monoxides, J. Chem. Phys., 1976, 65, 1027-1031. [all data]


Notes

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