Hydroxyl radical
- Formula: HO
- Molecular weight: 17.0073
- IUPAC Standard InChI: InChI=1S/HO/h1H
- IUPAC Standard InChIKey: TUJKJAMUKRIRHC-UHFFFAOYSA-N
- CAS Registry Number: 3352-57-6
- Chemical structure:
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Reaction thermochemistry data
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: 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
O- + =
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 382.600 ± 0.010 | kcal/mol | D-EA | Neumark, Lykke, et al., 1985 | gas phase; Given: 1.461122(3) eV; revised to 1.4611107(17) eV, 95BLO, based on missing term+86CODATA |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 376.73 ± 0.15 | kcal/mol | H-TS | Neumark, Lykke, et al., 1985 | gas phase; Given: 1.461122(3) eV; revised to 1.4611107(17) eV, 95BLO, based on missing term+86CODATA |
+
= HFO-
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 32.4 ± 2.3 | kcal/mol | LPES | Deyerl and Continetti, 2005 | gas phase; affinity at 0 K |
+
= (
•
)
By formula: H- + HO = (H- • HO)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 51.8 ± 4.1 | kcal/mol | Ther | de Koening and Nibbering, 1984 | gas phase |
References
Go To: Top, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Neumark, Lykke, et al., 1985
Neumark, D.M.; Lykke, K.R.; Andersen, T.; Lineberger, W.C.,
Laser photodetachment measurement of the electron affinity of atomic oxygen,
Phys. Rev. A:, 1985, 32, 1890. [all data]
Deyerl and Continetti, 2005
Deyerl, H.J.; Continetti, R.E.,
Photoelectron-photofragment coincidence study of OHF-: transition state dynamics of the reaction OH+F - O+HF,
Phys. Chem. Chem. Phys., 2005, 7, 5, 855-860, https://doi.org/10.1039/b414604b
. [all data]
de Koening and Nibbering, 1984
de Koening, L.J.; Nibbering, N.M.M.,
Formation of the Long-Lived H2O-. Ion in the Gas Phase,
J. Am. Chem. Soc., 1984, 106, 25, 7971, https://doi.org/10.1021/ja00337a054
. [all data]
Notes
Go To: Top, Reaction thermochemistry 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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