Carbon monoselenide

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 November, 1976

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 12C80Se
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
A 1Π (35243) [817.7] 1   [0.487] 2     [1.821] A ↔ X R 35135.25 3
↳missing citation; Laird and Barrow, 1953; missing citation; missing citation
a 2Π2(not observed)
a 3Π1 (24466)    [0.544]     [1.723] a → X R 24396.6 Z
↳Lebreton, Bosser, et al., 1973
a 3Π0+ (24150) [893.2] H   [0.544]       24080 Z
X 1Σ+ 0 1035.36 Z 4.86  0.5750 4 0.00379  0.00000071 5  1.67647 6 7  
↳McGurk, Tigleaar, et al., 1973

Notes

1ΔG(3/2) = 833.7 Stringat, Bacci, et al., 1974; from the Q(1) lines of the 0-1, 1-1,2-1 bands Stringat, Bacci, et al., 1974. This state is strongly perturbed and no meaningful vibrational and rotational constants can be given. The absorption spectrogram of Callear and Tyerman, 1965 shows in addition to 1Π - 1Σ some absorption bands probably due to some of the perturbing levels, in particular one progression which may be a' 3Σ+ ← X 1Σ+ in analogy to CO and CS.
2B1 = 0.497, B2 = 0.482, B3 = 0.447; see 1.
3Q(1) line for the 0-0 band Stringat, Bacci, et al., 1974.
4B0 = 0.573155 McGurk, Tigleaar, et al., 1973 from the microwave spectrum McGurk, Tigleaar, et al., 1973.
5βe= -0.25E-7
6From the B0 values for various isotopes obtained from the microwave spectrum McGurk, Tigleaar, et al., 1973.
7Microwave sp. 9
8Thermochemical value (mass-spectrom.) Rosen, 1970.
9Dipole moment from Stark effect 1.99 D McGurk, Tigleaar, et al., 1973; molecular g factor from Zeeman effect -0.2431.

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.

Laird and Barrow, 1953
Laird, R.K.; Barrow, R.F., The ultra-violet band spectrum of carbon monoselenide, Proc. Phys. Soc. London Sect. A, 1953, 66, 836. [all data]

Lebreton, Bosser, et al., 1973
Lebreton, J.; Bosser, G.; Marsigny, L., New emission spectrum of carbon monoselenide, J. Phys. B:, 1973, 6, 226. [all data]

McGurk, Tigleaar, et al., 1973
McGurk, J.; Tigleaar, H.L.; Rock, S.L.; Norris, C.L.; Flygare, W.H., Detection assignment of the microwave spectrum and the molecular Stark and Zeeman effects in CSe, and the Zeeman effect and sign of the dipole moment in CS, J. Chem. Phys., 1973, 58, 1420. [all data]

Stringat, Bacci, et al., 1974
Stringat, R.; Bacci, J.-P.; Pischedda, M.-H., Rotational analysis of the 1Π-X1Σ+ system of C80Se, Can. J. Phys., 1974, 52, 813. [all data]

Callear and Tyerman, 1965
Callear, A.B.; Tyerman, W.J.R., Flash photolysis of carbon diselenid, Trans. Faraday Soc., 1965, 61, 2395. [all data]

Rosen, 1970
Rosen, B., International tables of selected constants. 17. Spectroscopic data relative to diatomic molecules, Pub. Pergamon Press, Oxford, 1970, 0. [all data]

Notes

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