Praseodymium monoxide
- Formula: OPr
- Molecular weight: 156.9070
- CAS Registry Number: 12035-81-3
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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 July, 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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
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. ω'e and the second line refers to the lower state constants e.g. ω"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 | ||||||||||||
State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
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 | ||||||||||||
State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
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 | ||||||||||||
State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
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 | ||||||||||||
State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
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: ΔG(1/2) = 17.1 for Pr16O, and 775.4 for Pr18O. | ||||||||||||
↳Gabelnick, Reedy, et al., 1974 |
Notes
1 | Different analysis by Watson, 1938 |
2 | Single 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. |
4 | Thermochemical value (mass-spectrometry) Walsh, Dever, et al., 1961, Ames, Walsh, et al., 1967, recalculated Smoes, Coppens, et al., 1969, Bergman, Coppens, et al., 1970. |
5 | Corrected electron impact appearance potential Ackermann, Rauh, et al., 1976. |
6 | Rotational 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
Go To: Top, Constants of diatomic molecules, References
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