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Oxygen, atomic

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Gas phase thermochemistry 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.

Quantity Value Units Method Reference Comment
Deltafgas249.18 ± 0.10kJ/molReviewCox, Wagman, et al., 1984CODATA Review value
Quantity Value Units Method Reference Comment
gas,1 bar161.059 ± 0.003J/mol*KReviewCox, Wagman, et al., 1984CODATA Review value

Reaction thermochemistry 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

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

(Hydroxyl anion bullet 4294967295Oxygen, atomic) + Oxygen, atomic = Hydroxyl anion

By formula: (HO- bullet 4294967295O) + O = HO-

Quantity Value Units Method Reference Comment
Deltar533.21kJ/molN/ASmith, Kim, et al., 1997gas phase; Given: 14741.02(3) cm-1. dHacid(0K) = 389.11±0.014
Deltar533.88 ± 0.84kJ/molTherSchulz, Mead, et al., 1982gas phase; Given: 1.82767±0.00021 eV

(CAS Reg. No. 661-20-1 bullet 4294967295Oxygen, atomic) + Oxygen, atomic = CAS Reg. No. 661-20-1

By formula: (CAS Reg. No. 661-20-1 bullet 4294967295O) + O = CAS Reg. No. 661-20-1

Quantity Value Units Method Reference Comment
Deltar530.99kJ/molN/ABradforth, Kim, et al., 1993gas phase; D-EA cycle requires a DH ca 4 kcal/mol weaker
Deltar516.10kJ/molTherWight and Beauchamp, 1980gas phase

(Oxygen anion bullet 4294967295Oxygen, atomic) + Oxygen, atomic = Oxygen anion

By formula: (O2- bullet 4294967295O) + O = O2-

Quantity Value Units Method Reference Comment
Deltar400.7kJ/molN/AErvin, Anusiewicz, et al., 2003gas phase
Deltar401. ± 4.2kJ/molTherTravers, Cowles, et al., 1989gas phase

(CAS Reg. No. 13981-20-9 bullet 4294967295Oxygen, atomic) + Oxygen, atomic = CAS Reg. No. 13981-20-9

By formula: (CAS Reg. No. 13981-20-9 bullet 4294967295O) + O = CAS Reg. No. 13981-20-9

Quantity Value Units Method Reference Comment
Deltar524. ± 30.kJ/molCIDTBell, Zemski, et al., 2001gas phase

(CAS Reg. No. 14380-61-1 bullet 4294967295Oxygen, atomic) + Oxygen, atomic = CAS Reg. No. 14380-61-1

By formula: (CAS Reg. No. 14380-61-1 bullet 4294967295O) + O = CAS Reg. No. 14380-61-1

Quantity Value Units Method Reference Comment
Deltar140.0kJ/molN/ADistelrath and Boesl, 2000gas phase

(CAS Reg. No. 12763-66-5 bullet 4294967295Oxygen, atomic) + Oxygen, atomic = CAS Reg. No. 12763-66-5

By formula: (CAS Reg. No. 12763-66-5 bullet 4294967295O) + O = CAS Reg. No. 12763-66-5

Quantity Value Units Method Reference Comment
Deltar110.6kJ/molN/AGilles, Polak, et al., 1992gas phase

(CAS Reg. No. 14380-62-2 bullet 4294967295Oxygen, atomic) + Oxygen, atomic = CAS Reg. No. 14380-62-2

By formula: (CAS Reg. No. 14380-62-2 bullet 4294967295O) + O = CAS Reg. No. 14380-62-2

Quantity Value Units Method Reference Comment
Deltar136.1kJ/molN/AGilles, Polak, et al., 1992gas phase

(CAS Reg. No. 15065-65-3 bullet 4294967295Oxygen, atomic) + Oxygen, atomic = CAS Reg. No. 15065-65-3

By formula: (CAS Reg. No. 15065-65-3 bullet 4294967295O) + O = CAS Reg. No. 15065-65-3

Quantity Value Units Method Reference Comment
Deltar168.2kJ/molN/AGilles, Polak, et al., 1991gas phase

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Ion clustering data, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LL - Sharon G. Lias and Joel F. Liebman
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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to O+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)13.61806eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)485.2kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity459.6kJ/molN/AHunter and Lias, 1998HL

Electron affinity determinations

EA (eV) Method Reference Comment
1.439157 ± 0.000004LPDJoiner, Mohr, et al., 2011Given: 11607.75(28) cm-1. In 1.0 T field, 0.5 kcal/mol lower than "best" EA; B
1.4610 ± 0.0010LPESCavanagh, Gibson, et al., 2007B
1.460982 ± 0.000044LPDBlondel, Chaibi, et al., 2005(16)O: 1.4611135(12) eV: revised analysis of Blondel, Delsart, et al., 2001; B
1.461112 ± 0.000044LPDNeumark, Lykke, et al., 1985Given: 1.461122(3) eV; revised to 1.4611107(17) eV, 95BLO, based on missing term+86CODATA; B
1.461112 ± 0.000044N/AValli, Blondel, et al., 199916O: 11784.682(20) cm-1; 18O: 11784.612(29) cm-1 or 8.7«mu»eV lower.; B

Ionization energy determinations

IE (eV) Method Reference Comment
13.61806EVALLide, 1992LL
13.618SKelly, 1987LBLHLM
13.0 ± 0.5EIBanon, Chatillon, et al., 1982LBLHLM
13.618PIRadler and Berkowitz, 1977LLK
14. ± 1.EIPaule, 1976LLK
14.0 ± 0.5EIHildenbrand, 1975LLK
13.618SCermak, 1975LLK
13.61806SMoore, 1970RDSH
13.62PEJonathan, Morris, et al., 1970RDSH

Anion protonation reactions

O- + Hydrogen cation = Hydroxyl radical

By formula: O- + H+ = HO

Quantity Value Units Method Reference Comment
Deltar1600.798 ± 0.042kJ/molD-EANeumark, Lykke, et al., 1985gas phase; Given: 1.461122(3) eV; revised to 1.4611107(17) eV, 95BLO, based on missing term+86CODATA; B
Quantity Value Units Method Reference Comment
Deltar1576.2 ± 0.63kJ/molH-TSNeumark, Lykke, et al., 1985gas phase; Given: 1.461122(3) eV; revised to 1.4611107(17) eV, 95BLO, based on missing term+86CODATA; B

Ion clustering data

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, 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. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

(Hydroxyl anion bullet 4294967295Oxygen, atomic) + Oxygen, atomic = Hydroxyl anion

By formula: (HO- bullet 4294967295O) + O = HO-

Quantity Value Units Method Reference Comment
Deltar533.21kJ/molN/ASmith, Kim, et al., 1997gas phase; Given: 14741.02(3) cm-1. dHacid(0K) = 389.11±0.014
Deltar533.88 ± 0.84kJ/molTherSchulz, Mead, et al., 1982gas phase; Given: 1.82767±0.00021 eV

(Oxygen anion bullet 4294967295Oxygen, atomic) + Oxygen, atomic = Oxygen anion

By formula: (O2- bullet 4294967295O) + O = O2-

Quantity Value Units Method Reference Comment
Deltar400.7kJ/molN/AErvin, Anusiewicz, et al., 2003gas phase
Deltar401. ± 4.2kJ/molTherTravers, Cowles, et al., 1989gas phase

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Cox, Wagman, et al., 1984
Cox, J.D.; Wagman, D.D.; Medvedev, V.A., CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1984, 1. [all data]

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]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Joiner, Mohr, et al., 2011
Joiner, A.; Mohr, R.H.; Yukich, J.N., High-resolution photodetachment spectroscopy from the lowest threshold of O-, Phys. Rev. A, 2011, 83, 3, 035401, https://doi.org/10.1103/PhysRevA.83.035401 . [all data]

Cavanagh, Gibson, et al., 2007
Cavanagh, S.J.; Gibson, S.T.; Gale, M.N.; Dedman, C.J.; Roberts, E.H.; Lewis, B.R., High-resolution velocity-map-imaging photoelectron spectroscopy of the O- photodetachment fine-structure transitions, Phys. Rev. A, 2007, 76, 5, 052708, https://doi.org/10.1103/PhysRevA.76.052708 . [all data]

Blondel, Chaibi, et al., 2005
Blondel, C.; Chaibi, W.; Delsart, C.; Drag, C.; Goldfarb, F.; Kroger, S., The electron affinities of O, Si, and S revisited with the photodetachment microscope, Eur. Phys. J. D, 2005, 33, 3, 335-342, https://doi.org/10.1140/epjd/e2005-00069-9 . [all data]

Blondel, Delsart, et al., 2001
Blondel, C.; Delsart, C.; Goldfarb, F., Electron spectrometry at the mu eV level and the electron affinities of Si and F, J. Phys. B: Atom. Mol. Opt. Phys., 2001, 34, 9, L281-L288, https://doi.org/10.1088/0953-4075/34/9/101 . [all data]

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]

Valli, Blondel, et al., 1999
Valli, C.; Blondel, C.; Delsart, C., Measuring electron affinities with the photodetachment microscope, Phys. Rev. A, 1999, 59, 5, 3809-3815, https://doi.org/10.1103/PhysRevA.59.3809 . [all data]

Lide, 1992
Lide, D.R. (Editor), Ionization potentials of atoms and atomic ions in Handbook of Chem. and Phys., 1992, 10-211. [all data]

Kelly, 1987
Kelly, R.L., Atomic and ionic spectrum lines of hydrogen through kryton, J. Phys. Chem. Ref. Data, 1987, 16. [all data]

Banon, Chatillon, et al., 1982
Banon, S.; Chatillon, C.; Allibert, M., High temperature mass spectrometric study of ionization and fragmentation of TiO and TiO2 gas under electron impact, High Temp. Sci., 1982, 15, 17. [all data]

Radler and Berkowitz, 1977
Radler, K.; Berkowitz, J., Photoionization mass spectrometric study of CSe2, J. Chem. Phys., 1977, 66, 2176. [all data]

Paule, 1976
Paule, R.C., Mass spectrometric studies of Al2O3 vaporization processes, High Temp. Sci., 1976, 8, 257. [all data]

Hildenbrand, 1975
Hildenbrand, D.L., Vertical ionization potential of the CF2 radical, Chem. Phys. Lett., 1975, 32, 30. [all data]

Cermak, 1975
Cermak, V., Electron spectroscopy of autoionizing states of oxygen, chlorine and bromine atoms, J. Electron Spectrosc. Relat. Phenom., 1975, 6, 135. [all data]

Moore, 1970
Moore, C.E., Ionization potentials and ionization limits derived from the analyses of optical spectra, Natl. Stand. Ref. Data Ser., (U.S. Natl. Bur. Stand.), 1970, 34, 1. [all data]

Jonathan, Morris, et al., 1970
Jonathan, N.; Morris, A.; Smith, D.J.; Ross, K.J., Photoelectron spectra of ground state atomic hydrogen, nitrogen and oxygen, Chem. Phys. Lett., 1970, 7, 497. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References