Oxygen, atomic
- Formula: O
- Molecular weight: 15.9994
- IUPAC Standard InChI: InChI=1S/O
- IUPAC Standard InChIKey: QVGXLLKOCUKJST-UHFFFAOYSA-N
- CAS Registry Number: 17778-80-2
- Chemical structure:
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- Other data available:
- Data at other public NIST sites:
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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
( • 4294967295
) +
=
By formula: (HO- • 4294967295O) + O = HO-
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 533.21 | kJ/mol | N/A | Smith, Kim, et al., 1997 | gas phase; Given: 14741.02(3) cm-1. dHacid(0K) = 389.11±0.014 |
| ΔrH° | 533.88 ± 0.84 | kJ/mol | Ther | Schulz, Mead, et al., 1982 | gas phase; Given: 1.82767±0.00021 eV |
(CAS Reg. No. 661-20-1 • 4294967295) +
= CAS Reg. No. 661-20-1
By formula: (CAS Reg. No. 661-20-1 • 4294967295O) + O = CAS Reg. No. 661-20-1
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 530.99 | kJ/mol | N/A | Bradforth, Kim, et al., 1993 | gas phase; D-EA cycle requires a DH ca 4 kcal/mol weaker |
| ΔrH° | 516.10 | kJ/mol | Ther | Wight and Beauchamp, 1980 | gas phase |
( • 4294967295
) +
=
By formula: (O2- • 4294967295O) + O = O2-
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 400.7 | kJ/mol | N/A | Ervin, Anusiewicz, et al., 2003 | gas phase |
| ΔrH° | 401. ± 4.2 | kJ/mol | Ther | Travers, Cowles, et al., 1989 | gas phase |
(CAS Reg. No. 13981-20-9 • 4294967295) +
= CAS Reg. No. 13981-20-9
By formula: (CAS Reg. No. 13981-20-9 • 4294967295O) + O = CAS Reg. No. 13981-20-9
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 524. ± 30. | kJ/mol | CIDT | Bell, Zemski, et al., 2001 | gas phase |
(CAS Reg. No. 14380-61-1 • 4294967295) +
= CAS Reg. No. 14380-61-1
By formula: (CAS Reg. No. 14380-61-1 • 4294967295O) + O = CAS Reg. No. 14380-61-1
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 140.0 | kJ/mol | N/A | Distelrath and Boesl, 2000 | gas phase |
(CAS Reg. No. 12763-66-5 • 4294967295) +
= CAS Reg. No. 12763-66-5
By formula: (CAS Reg. No. 12763-66-5 • 4294967295O) + O = CAS Reg. No. 12763-66-5
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 110.6 | kJ/mol | N/A | Gilles, Polak, et al., 1992 | gas phase |
(CAS Reg. No. 14380-62-2 • 4294967295) +
= CAS Reg. No. 14380-62-2
By formula: (CAS Reg. No. 14380-62-2 • 4294967295O) + O = CAS Reg. No. 14380-62-2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 136.1 | kJ/mol | N/A | Gilles, Polak, et al., 1992 | gas phase |
(CAS Reg. No. 15065-65-3 • 4294967295) +
= CAS Reg. No. 15065-65-3
By formula: (CAS Reg. No. 15065-65-3 • 4294967295O) + O = CAS Reg. No. 15065-65-3
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 168.2 | kJ/mol | N/A | Gilles, Polak, et al., 1991 | 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.
Smith, Kim, et al., 1997
Smith, J.R.; Kim, J.B.; Lineberger, W.C.,
High-resolution Threshold Photodetachment Spectroscopy of OH-,
Phys. Rev. A, 1997, 55, 3, 2036, https://doi.org/10.1103/PhysRevA.55.2036
. [all data]
Schulz, Mead, et al., 1982
Schulz, P.A.; Mead, R.D.; Jones, P.L.; Lineberger, W.C.,
OH- and OD- threshold photodetachment,
J. Chem. Phys., 1982, 77, 1153. [all data]
Bradforth, Kim, et al., 1993
Bradforth, S.E.; Kim, E.H.; Arnold, D.W.; Neumark, D.M.,
Photoelectron Spectroscopy of CN-, NCO-, and NCS-,
J. Chem. Phys., 1993, 98, 2, 800, https://doi.org/10.1063/1.464244
. [all data]
Wight and Beauchamp, 1980
Wight, C.A.; Beauchamp, J.L.,
Acidity, basicity, and ion/molecule reactions of isocyanic acid in the gas phase by ICR spectroscopy,
J. Phys. Chem., 1980, 84, 2503. [all data]
Ervin, Anusiewicz, et al., 2003
Ervin, K.M.; Anusiewicz, W.; Skurski, P.; Simons, J.; Lineberger, W.C.,
The only stable state of O-2(-) is the X (2)Pi(g) ground state and it (still!) has an adiabatic electron detachment energy of,
J. Phys. Chem. A, 2003, 107, 41, 8521-8529, https://doi.org/10.1021/jp0357323
. [all data]
Travers, Cowles, et al., 1989
Travers, M.J.; Cowles, D.C.; Ellison, G.B.,
Reinvestigation of the Electron Affinities of O2 and NO,
Chem. Phys. Lett., 1989, 164, 5, 449, https://doi.org/10.1016/0009-2614(89)85237-6
. [all data]
Bell, Zemski, et al., 2001
Bell, R.C.; Zemski, K.A.; Justes, D.R.; Castleman, A.W.,
Formation, structure and bond dissociation thresholds of gas- phase vanadium oxide cluster ions,
J. Chem. Phys., 2001, 114, 2, 798-811, https://doi.org/10.1063/1.1329643
. [all data]
Distelrath and Boesl, 2000
Distelrath, V.; Boesl, U.,
Mass selective gas phase study of ClO, OClO, ClOO and ClAr by anion-ZEKE-photoelectron spectroscopy,
Faraday Disc. Chem. Soc., 2000, 115, 161-174, https://doi.org/10.1039/a909618c
. [all data]
Gilles, Polak, et al., 1992
Gilles, M.K.; Polak, M.L.; Lineberger, W.C.,
Photoelectron Spectroscopy of the Halogen Oxide Anions FO-, ClO-, BrO-, IO-, OClO-, and OIO-,
J. Chem. Phys., 1992, 96, 11, 8012, https://doi.org/10.1063/1.462352
. [all data]
Gilles, Polak, et al., 1991
Gilles, M.K.; Polak, M.L.; Lineberger, W.C.,
Photoelectron Spectroscopy of IO-,
J. Chem. Phys., 1991, 95, 6, 4723, https://doi.org/10.1063/1.461746
. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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