Selenium oxide
- Formula: OSe
- Molecular weight: 94.96
- IUPAC Standard InChI: InChI=1S/OSe/c1-2
- IUPAC Standard InChIKey: ZIJTYIRGFVHPHZ-UHFFFAOYSA-N
- CAS Registry Number: 12640-89-0
- Chemical structure:
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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 October, 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | ||||||||||||
| State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | 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 | ||||||||||||
| State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | 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 | ||||||||||||
| State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | 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 | ||||||||||||
| State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | 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
| 1 | Average of F2 and F3; B0(F3) - B0(F2) = +0.0052. |
| 2 | Rotational perturbations Barrow and Deutsch, 1963. |
| 3 | Emission 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. |
| 6 | Extrapolated from bands having v"=3. |
| 7 | From P, Q head separations. |
| 8 | missing note |
| 9 | ESR sp. 15 |
| 10 | From B→X bands with v"≥ 5; vibrational numbering confirmed by isotope studies. |
| 11 | Average of F2 and F3; B0(F3) - B0(F2) = +0.0048 Verma and Reddy, 1977. |
| 12 | ESR sp. 16 |
| 13 | From the predissociation in B 3Σ-; see 3. |
| 14 | Theoretical estimate Barrow and Lemanczyk, 1975. |
| 15 | μel(a 1Δ) = 2.01 D, from Stark effect on the ESR spectrum Byfleet, Carrington, et al., 1971. |
| 16 | Hf coupling of 77Se Carrington, Currie, et al., 1969. |
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.
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
Go To: Top, Constants of diatomic molecules, References
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