Selenium oxide


Gas phase ion energetics data

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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: John E. Bartmess

View reactions leading to OSe+ (ion structure unspecified)

Electron affinity determinations

EA (eV) Method Reference Comment
1.456 ± 0.020LPESCoe, Snodgrass, et al., 1986 

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, 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 80Se16O
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
A large number of V shaded emission bands in the region 40000 - 55000 cm-1 has tentatively been assigned to five or six systems with upper state vibrational frequencies ranging from ~940 to ~1030 cm-1 and lower state constants similar to those of the ground and first excited states of SeO.
missing citation; missing citation
C3 (3Πi0) 35484 581 H 3.5        C3 → X2 R 35156 H
missing citation
           C3 → X1 R 35313 H
missing citation
C2 (3Πi1) 35405 585 H 4.1        C2 → X2 R 35075 H
missing citation
           C2 → X1 R 35240 H
missing citation
C1 (3Πi2) 
missing citation
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
B2 3Σ-1 (34376) [517.5] Z   [0.3417] 1 2 0.0407    1.869 B2 → X2 R 34012.2 Z
Barrow and Deutsch, 1963; Haranath, 1965
B1 3Σ-0+ 34277.8 522.3 Z 3.9 3  [0.3332] 2 0.0292    1.907 B1 → X1 R 34081.8 Z
Barrow and Deutsch, 1963; Haranath, 1965
A' (17364) 4 885.2 H 5.85        A' → X 5 R 17349 H
Kushawaha and Pathak, 1972
A3 (3Πr2) (16773) [980] H         A3 → X2 V 16640 6 H
missing citation
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
A2 (3Πr1) 16458 996 H 7.0  [(0.470)] 7     [(1.64)] A2 → X2 V 16334 6 H
missing citation
           A2 → X1 V 16495 6 H
missing citation
A1 (3Πr0) 16144 994 H 6.5        A1 → X2 V 16015 6 H
missing citation
           A1 → X1 V 16185 6 H
missing citation
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
b 1Σ+ 9723.5 838.83 (Z) 5.11  [0.4560] (0.0035)  [8E-7]  [1.6655] b → X2 R 9519.1 Z
missing citation; Barrow and Lemanczyk, 1975; missing citation
           b → X1 R 9685.4 Z
missing citation; Barrow and Lemanczyk, 1975; missing citation
a 1Δ (5300) 8    [0.461]     [1.656] 9  
Carrington, Currie, et al., 1969
X2 3Σ-1 165.9 915.43 10 Z 4.52  0.4738 11 0.00339  5E-7  1.6339 12  
Carrington, Currie, et al., 1969
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
X1 3Σ-0+ 0 914.69 10 Z 4.52  0.4655 0.00323  5E-7  1.6484  
Carrington, Currie, et al., 1969

Notes

1Average of F2 and F3; B0(F3) - B0(F2) = +0.0052.
2Rotational perturbations Barrow and Deutsch, 1963.
3Emission bands with v' > 2 have not been observed, probably owing to predissociation. The limit is at ~ 35600 cm-1 above X1(v"=0).
4 Kushawaha and Pathak, 1972 give 17338.5 which does not agree with their v00 value. It is not clear whether X1 or X2 is the lower state of this system.
5 Kushawaha and Pathak, 1972 considered the upper state to the b 1Σ+, but v00 appears too high for this interpretation.
6Extrapolated from bands having v"=3.
7From P, Q head separations.
8missing note
9ESR sp. 15
10From B→X bands with v"≥ 5; vibrational numbering confirmed by isotope studies.
11Average of F2 and F3; B0(F3) - B0(F2) = +0.0048 Verma and Reddy, 1977.
12ESR sp. 16
13From the predissociation in B 3Σ-; see 3.
14Theoretical estimate Barrow and Lemanczyk, 1975.
15μel(a 1Δ) = 2.01 D, from Stark effect on the ESR spectrum Byfleet, Carrington, et al., 1971.
16Hf coupling of 77Se Carrington, Currie, et al., 1969.

References

Go To: Top, Gas phase ion energetics data, 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.

Coe, Snodgrass, et al., 1986
Coe, J.V.; Snodgrass, J.T.; Freidhoff, C.B.; McHugh, K.M.; Bowen, K.H., Photoelectron spectroscopy of the negative ion SeO-, J. Chem. Phys., 1986, 84, 618. [all data]

Barrow and Deutsch, 1963
Barrow, R.F.; Deutsch, E.W., Rotational analysis of the A3Σ--X3Σ- system of SeO, Proc. Phys. Soc. London, 1963, 82, 548. [all data]

Haranath, 1965
Haranath, P.B.V., New emission bands of SeO in the region 5100-3900 A, Indian J. Pure Appl. Phys., 1965, 3, 75. [all data]

Kushawaha and Pathak, 1972
Kushawaha, V.S.; Pathak, C.M., A new electronic transition in SeO, Spectrosc. Lett., 1972, 5, 393. [all data]

Barrow and Lemanczyk, 1975
Barrow, R.F.; Lemanczyk, R.Z., Remarks on the spectrum of gaseous SeO, Can. J. Phys., 1975, 53, 553. [all data]

Carrington, Currie, et al., 1969
Carrington, A.; Currie, G.N.; Levy, D.H.; Miller, T.A., Electron resonance spectrum of gaseous SeO in its 3Σ and 1Δ states, Mol. Phys., 1969, 17, 535. [all data]

Verma and Reddy, 1977
Verma, K.K.; Reddy, S.P., Rotational analysis of the b-X system of selenium monoxide, J. Mol. Spectrosc., 1977, 67, 360. [all data]

Byfleet, Carrington, et al., 1971
Byfleet, C.R.; Carrington, A.; Russell, D.K., Electric dipole moments of open-shell diatomic molecules, Mol. Phys., 1971, 20, 271. [all data]


Notes

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