Hydrogen anion
- Formula: H-
- Molecular weight: 1.00849
- IUPAC Standard InChI: InChI=1S/H/q-1
- IUPAC Standard InChIKey: KLGZELKXQMTEMM-UHFFFAOYSA-N
- CAS Registry Number: 12184-88-2
- Chemical structure:
This structure is also available as a 2d Mol file - Isotopologues:
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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
Protonation reactions
+
=
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 400.40 | kcal/mol | N/A | Shiell, Hu, et al., 2000 | gas phase; Given: 139714.8±1 cm-1 at 0K, or 399.465±0.003 kcal/mol |
| ΔrH° | 400.40 | kcal/mol | N/A | Pratt, McCormack, et al., 1992 | gas phase; 399.46±0.01 kcal/mol at 0K; 0.94 correction, Gurvich, Veyts, et al. |
| ΔrH° | 400.40 | kcal/mol | D-EA | Lykke, Murray, et al., 1991 | gas phase; Reported: 6082.99±0.15 cm-1, or 0.754195(18) eV |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 394.20 ± 0.10 | kcal/mol | H-TS | Shiell, Hu, et al., 2000 | gas phase; Given: 139714.8±1 cm-1 at 0K, or 399.465±0.003 kcal/mol |
| ΔrG° | 394.20 | kcal/mol | H-TS | Lykke, Murray, et al., 1991 | gas phase; Reported: 6082.99±0.15 cm-1, or 0.754195(18) eV |
References
Go To: Top, 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.
Shiell, Hu, et al., 2000
Shiell, R.C.; Hu, X.K.; Hu, Q.C.J.; Hepburn, J.W.,
Threshold Ion-pair Production spectroscopy (TIPPS) of H2 and D2,
Faraday Disc. Chem. Soc., 2000, 115, 331, https://doi.org/10.1039/a909428h
. [all data]
Pratt, McCormack, et al., 1992
Pratt, S.T.; McCormack, E.F.; Dehmer, J.L.; Dehmer, P.M.,
Field-Induced Ion-Pair Formation in Molecular Hydrogen,
Phys. Rev. Lett., 1992, 68, 5, 584, https://doi.org/10.1103/PhysRevLett.68.584
. [all data]
Gurvich, Veyts, et al.
Gurvich, L.V.; Veyts, I.V.; Alcock, C.B.,
Hemisphere Publishing, NY, 1989, V. 1 2, Thermodynamic Properties of Individual Substances, 4th Ed. [all data]
Lykke, Murray, et al., 1991
Lykke, K.R.; Murray, K.K.; Lineberger, W.C.,
Threshold Photodetachment of H-,
Phys. Rev. A, 1991, 43, 11, 6104, https://doi.org/10.1103/PhysRevA.43.6104
. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
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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