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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
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
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 (3Pii0) 35484 581 H 3.5        C3 rarrow X2 R 35156 H
missing citation
           C3 rarrow X1 R 35313 H
missing citation
C2 (3Pii1) 35405 585 H 4.1        C2 rarrow X2 R 35075 H
missing citation
           C2 rarrow X1 R 35240 H
missing citation
C1 (3Pii2) 
missing citation
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
B2 3Sigma-1 (34376) [517.5] Z   [0.3417] 1 2 0.0407    1.869 B2 rarrow X2 R 34012.2 Z
Barrow and Deutsch, 1963; Haranath, 1965
B1 3Sigma-0+ 34277.8 522.3 Z 3.9 3  [0.3332] 2 0.0292    1.907 B1 rarrow X1 R 34081.8 Z
Barrow and Deutsch, 1963; Haranath, 1965
A' (17364) 4 885.2 H 5.85        A' rarrow X 5 R 17349 H
Kushawaha and Pathak, 1972
A3 (3Pir2) (16773) [980] H         A3 rarrow X2 V 16640 6 H
missing citation
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
A2 (3Pir1) 16458 996 H 7.0  [(0.470)] 7     [(1.64)] A2 rarrow X2 V 16334 6 H
missing citation
           A2 rarrow X1 V 16495 6 H
missing citation
A1 (3Pir0) 16144 994 H 6.5        A1 rarrow X2 V 16015 6 H
missing citation
           A1 rarrow X1 V 16185 6 H
missing citation
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
b 1Sigma+ 9723.5 838.83 (Z) 5.11  [0.4560] (0.0035)  [8E-7]  [1.6655] b rarrow X2 R 9519.1 Z
missing citation; Barrow and Lemanczyk, 1975; missing citation
           b rarrow X1 R 9685.4 Z
missing citation; Barrow and Lemanczyk, 1975; missing citation
a 1Delta (5300) 8    [0.461]     [1.656] 9  
Carrington, Currie, et al., 1969
X2 3Sigma-1 165.9 915.43 10 Z 4.52  0.4738 11 0.00339  5E-7  1.6339 12  
Carrington, Currie, et al., 1969
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
X1 3Sigma-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 1Sigma+, 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 BrarrowX bands with v"geq 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 3Sigma-; see 3.
14Theoretical estimate Barrow and Lemanczyk, 1975.
15muel(a 1Delta) = 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

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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 A3«SIGMA»--X3«SIGMA»- 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 3«SIGMA» and 1«DELTA» 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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