Selenium monohydride
- Formula: HSe
- Molecular weight: 79.97
- IUPAC Standard InChI: InChI=1S/HSe/h1H
- IUPAC Standard InChIKey: VUGWMQXJZSOYNI-UHFFFAOYSA-N
- CAS Registry Number: 13940-22-2
- 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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| F | 1 | F ← X1 | 71190 | |||||||||
| ↳Donovan, Little, et al., 1972 | ||||||||||||
| E | 2 | E ← X1 | 69604 | |||||||||
| ↳Donovan, Little, et al., 1972 | ||||||||||||
| D | 3 | D ← X1 | 66814 | |||||||||
| ↳Donovan, Little, et al., 1972 | ||||||||||||
| C | 4 | C ← X1 R | 55797 HQ | |||||||||
| ↳Donovan, Little, et al., 1972 | ||||||||||||
| State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
| A (2Σ+) | (31500) | [1232] (H) | (172) 5 6 | |||||||||
| A ← X1 R | 31048 (H) | |||||||||||
| ↳Lindgren, 1968 | ||||||||||||
| X2 2Π1/2 | (1815) 7 | (2400) 5 | [7.78] 8 | [1.475] 9 | ||||||||
| ↳Radford, 1964; Carrington, Currie, et al., 1970; Byfleet, Carrington, et al., 1971 | ||||||||||||
| X1 2Π3/2 | 0 | (2400) 5 | [7.78] 8 | [1.475] 9 | ||||||||
| ↳Radford, 1964; Carrington, Currie, et al., 1970; Byfleet, Carrington, et al., 1971 | ||||||||||||
Notes
| 1 | Weak diffuse band. |
| 2 | Diffuse band. |
| 3 | Strong diffuse band. |
| 4 | Strong double-headed band. |
| 5 | From isotope relations between SeH and SeD. |
| 6 | Diffuse bands. |
| 7 | From the photodetachment spectra of SeH- and SeD-. |
| 8 | Λ-doubling frequencies Carrington, Currie, et al., 1970. |
| 9 | ESR sp. 12 |
| 10 | Extrapolation of the vibrational levels in A 2Σ+ assuming dissociation of this state into 2S + 1D. |
| 11 | From Rydberg assignments of Donovan, Little, et al., 1972; doubtful. |
| 12 | μel = 0.49 D Byfleet, Carrington, et al., 1971. 77Se hf coupling Carrington, Currie, et al., 1970. |
| 13 | μel = 0.483 D Byfleet, Carrington, et al., 1971. 77Se hf coupling Carrington, Currie, et al., 1970. |
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.
Donovan, Little, et al., 1972
Donovan, R.J.; Little, D.J.; Konstantatos, J.,
Vacuum ultraviolet spectra of transient molecules and radicals,
J. Chem. Soc. Faraday Trans. 2, 1972, 68, 1812. [all data]
Lindgren, 1968
Lindgren, B.,
Diffuse spectra of SeH and SeD,
J. Mol. Spectrosc., 1968, 28, 536. [all data]
Radford, 1964
Radford, H.E.,
Synthesis of diatomic radicals,
J. Chem. Phys., 1964, 40, 2732. [all data]
Carrington, Currie, et al., 1970
Carrington, A.; Currie, G.N.; Lucas, N.J.D.,
Electron resonance of gaseous diatomic hydrides. II. Rotational constant, Λ-doubling, hyperfine structure and dipole moment of SeH and SeD,
Proc. R. Soc. London A, 1970, 315, 355. [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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