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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Reaction thermochemistry data
Go To: Top, Gas phase ion energetics data, 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: John E. Bartmess
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
Se- + =
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 339.9 ± 1.1 | kcal/mol | D-EA | Vandevraye, Drag, et al., 2012 | gas phase; Given: 2.0206046(11) eV |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 333.9 ± 1.2 | kcal/mol | H-TS | Vandevraye, Drag, et al., 2012 | gas phase; Given: 2.0206046(11) eV |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
View reactions leading to HSe+ (ion structure unspecified)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°(+) ion | 262. | kcal/mol | N/A | N/A |
Electron affinity determinations
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| 2.212525 ± 0.000044 | LPD | Stoneman and Larson, 1986 | Wagman, Evans, et al., 1982 ΔHf(AH) = 7.1 kcal/mol; B |
| 2.210 ± 0.030 | PD | Smyth and Brauman, 1972 | B |
| 2.29921 | N/A | Check, Faust, et al., 2001 | MnO-(t); ; ΔS(EA)=5.5; B |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 9.845 ± 0.003 | PI | Gibson, Greene, et al., 1986 | LBLHLM |
| 9.79 | S | Donovan, Little, et al., 1972 | LLK |
De-protonation reactions
Se- + =
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 339.9 ± 1.1 | kcal/mol | D-EA | Vandevraye, Drag, et al., 2012 | gas phase; Given: 2.0206046(11) eV; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 333.9 ± 1.2 | kcal/mol | H-TS | Vandevraye, Drag, et al., 2012 | gas phase; Given: 2.0206046(11) eV; B |
References
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Vandevraye, Drag, et al., 2012
Vandevraye, M.; Drag, C.; Blondel, C.,
Electron affinity of selenium measured by photodetachment microscopy,
Phys. Rev. A, 2012, 85, 1, 015401, https://doi.org/10.1103/PhysRevA.85.015401
. [all data]
Stoneman and Larson, 1986
Stoneman, R.C.; Larson, D.J.,
Photodetachment spectroscopy of SeH- in a magnetic field,
J. Phys. B:, 1986, 19, 405. [all data]
Wagman, Evans, et al., 1982
Wagman, D.D.; Evans, W.H.; Parker, V.B.; Schumm, R.H.; Halow, I.; Bailey, S.M.; Churney, K.L.; Nuttall, R.L.,
The NBS Tables of Chemical Thermodynamic Properties (NBS Tech Note 270),
J. Phys. Chem. Ref. Data, Supl. 1, 1982, 11. [all data]
Smyth and Brauman, 1972
Smyth, K.C.; Brauman, J.I.,
Photodetachment of an electron from selenide ion the electron affinity and spin- orbit coupling constant for SeH,
J. Chem. Phys., 1972, 56, 5993. [all data]
Check, Faust, et al., 2001
Check, C.E.; Faust, T.O.; Bailey, J.M.; Wright, B.J.; Gilbert, T.M.; Sunderlin, L.S.,
Addition of Polarization and Diffuse Functions to the LANL2DZ Basis Set for P-Block Elements,
J. Phys. Chem. A,, 2001, 105, 34, 8111, https://doi.org/10.1021/jp011945l
. [all data]
Gibson, Greene, et al., 1986
Gibson, S.T.; Greene, J.P.; Berkowitz, J.,
A photoionization study of SeH and H2Se,
J. Chem. Phys., 1986, 85, 4815. [all data]
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]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
EA Electron affinity ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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