Nitrogen

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Gas phase thermochemistry 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.

Quantity Value Units Method Reference Comment
S°gas,1 bar45.7957 ± 0.001cal/mol*KReviewCox, Wagman, et al., 1984CODATA Review value
S°gas,1 bar45.796cal/mol*KReviewChase, 1998Data last reviewed in March, 1977

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 100. to 500.500. to 2000.2000. to 6000.
A 6.9279194.6620068.489178
B 0.4431114.7531200.269772
C -2.305798-2.055099-0.046870
D 3.9759490.3273860.003504
E 0.0000280.126100-1.088375
F -2.072637-1.179542-4.534157
G 54.1149150.7624353.77175
H 0.00.00.0
ReferenceChase, 1998Chase, 1998Chase, 1998
Comment Data last reviewed in March, 1977; New parameter fit January 2009 Data last reviewed in March, 1977; New parameter fit January 2009 Data last reviewed in March, 1977; New parameter fit January 2009

Reaction thermochemistry data

Go To: Top, Gas phase 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:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
MS - José A. Martinho Simões
B - John E. Bartmess
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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.

Reactions 1 to 50

Nitric oxide anion + Nitrogen = (Nitric oxide anion • Nitrogen)

By formula: NO- + N2 = (NO- • N2)

Quantity Value Units Method Reference Comment
ΔrH°4.6 ± 0.3kcal/molPHPMSHiraoka and Yamabe, 1989gas phase; M
ΔrH°4.7kcal/molDTGheno and Fitaire, 1987gas phase; ΔrS+-2.9 cal/mol*K; M
ΔrH°4.4kcal/molHPMSSpeller, Fitaire, et al., 1983gas phase; Entropy change is questionable; M
ΔrH°5.2kcal/molHPMSTurner and Conway, 1976gas phase; M
ΔrH°4.5kcal/molDTJohnsen, Huang, et al., 1975gas phase; corrected for ln T by Keesee and Castleman, 1986; M
Quantity Value Units Method Reference Comment
ΔrS°17.0cal/mol*KPHPMSHiraoka and Yamabe, 1989gas phase; M
ΔrS°13.8cal/mol*KDTGheno and Fitaire, 1987gas phase; ΔrS+-2.9 cal/mol*K; M
ΔrS°13.3cal/mol*KHPMSSpeller, Fitaire, et al., 1983gas phase; Entropy change is questionable; M
ΔrS°18.9cal/mol*KHPMSTurner and Conway, 1976gas phase; M
ΔrS°15.7cal/mol*KDTJohnsen, Huang, et al., 1975gas phase; corrected for ln T by Keesee and Castleman, 1986; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
0.5200.FADunkin, Fehsenfeld, et al., 1971gas phase; M

Nitrogen cation + Nitrogen = (Nitrogen cation • Nitrogen)

By formula: N2+ + N2 = (N2+ • N2)

Quantity Value Units Method Reference Comment
ΔrH°24.4 to 24.4kcal/molRNGN/ARange of 6 values; Individual data points
Quantity Value Units Method Reference Comment
ΔrS°21.0cal/mol*KPHPMSHiraoka and Nakajima, 1988gas phase; M
ΔrS°16.2cal/mol*KPHPMSTeng and Conway, 1973gas phase; M
ΔrS°19.5cal/mol*KPHPMSPayzant and Kebarle, 1970gas phase; M
ΔrS°11.cal/mol*KDTVarney, 1968gas phase; Entropy change is questionable; M
ΔrS°-1.cal/mol*KDTVarney, 1959gas phase; Entropy change is questionable; M

Oxygen cation + Nitrogen = (Oxygen cation • Nitrogen)

By formula: O2+ + N2 = (O2+ • N2)

Quantity Value Units Method Reference Comment
ΔrH°5.0 ± 0.3kcal/molPHPMSHiraoka and Nakajima, 1988gas phase; M
ΔrH°5.2kcal/molHPMSSpeller and Fitaire, 1983gas phase; M
ΔrH°5.7kcal/molPHPMSJanik and Conway, 1967gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°17.4cal/mol*KPHPMSHiraoka and Nakajima, 1988gas phase; M
ΔrS°15.8cal/mol*KHPMSSpeller and Fitaire, 1983gas phase; M
ΔrS°18.9cal/mol*KPHPMSJanik and Conway, 1967gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
0.0296.FAHoward, Bierbaum, et al., 1972gas phase; M

(HN2+ • 4Nitrogen) + Nitrogen = (HN2+ • 5Nitrogen)

By formula: (HN2+ • 4N2) + N2 = (HN2+ • 5N2)

Quantity Value Units Method Reference Comment
ΔrH°3.0 ± 0.3kcal/molPHPMSHiraoka and Mori, 1989gas phase; M
ΔrH°3.2kcal/molPHPMSHiraoka, Saluja, et al., 1979gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°22.9cal/mol*KPHPMSHiraoka and Mori, 1989gas phase; M
ΔrS°20.cal/mol*KN/AHiraoka, Saluja, et al., 1979gas phase; Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
1.492.PHPMSHiraoka, Saluja, et al., 1979gas phase; Entropy change calculated or estimated; M

(Oxygen anion • 7Nitrogen • Oxygen) + Nitrogen = (Oxygen anion • 8Nitrogen • Oxygen)

By formula: (O2- • 7N2 • O2) + N2 = (O2- • 8N2 • O2)

Quantity Value Units Method Reference Comment
ΔrH°1.6 ± 0.3kcal/molPHPMSHiraoka, 1988gas phase; M
ΔrH°1.53kcal/molPHPMSHiraoka, 1988gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°17.9cal/mol*KPHPMSHiraoka, 1988gas phase; M
ΔrS°18.0cal/mol*KN/AHiraoka, 1988gas phase; Entropy change calculated or estimated; M

(Oxygen cation • 2Nitrogen) + Nitrogen = (Oxygen cation • 3Nitrogen)

By formula: (O2+ • 2N2) + N2 = (O2+ • 3N2)

Quantity Value Units Method Reference Comment
ΔrH°4.2 ± 0.3kcal/molPHPMSHiraoka and Nakajima, 1988gas phase; M
ΔrH°3.5kcal/molHPMSSpeller and Fitaire, 1983gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
ΔrS°19.6cal/mol*KPHPMSHiraoka and Nakajima, 1988gas phase; M
ΔrS°12.1cal/mol*KHPMSSpeller and Fitaire, 1983gas phase; Entropy change is questionable; M

(Oxygen cation • Nitrogen) + Nitrogen = (Oxygen cation • 2Nitrogen)

By formula: (O2+ • N2) + N2 = (O2+ • 2N2)

Quantity Value Units Method Reference Comment
ΔrH°4.5 ± 0.3kcal/molPHPMSHiraoka and Nakajima, 1988gas phase; M
ΔrH°4.3kcal/molHPMSSpeller and Fitaire, 1983gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
ΔrS°19.1cal/mol*KPHPMSHiraoka and Nakajima, 1988gas phase; M
ΔrS°13.8cal/mol*KHPMSSpeller and Fitaire, 1983gas phase; Entropy change is questionable; M

(Nitric oxide anion • Nitrogen) + Nitrogen = (Nitric oxide anion • 2Nitrogen)

By formula: (NO- • N2) + N2 = (NO- • 2N2)

Quantity Value Units Method Reference Comment
ΔrH°4.2 ± 0.3kcal/molPHPMSHiraoka and Yamabe, 1989gas phase; M
ΔrH°3.9kcal/molHPMSSpeller and Fitaire, 1983gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
ΔrS°17.4cal/mol*KPHPMSHiraoka and Yamabe, 1989gas phase; M
ΔrS°12.6cal/mol*KHPMSSpeller and Fitaire, 1983gas phase; Entropy change is questionable; M

C3N2NiO3 (solution) = C3NiO3 (solution) + Nitrogen (solution)

By formula: C3N2NiO3 (solution) = C3NiO3 (solution) + N2 (solution)

Quantity Value Units Method Reference Comment
ΔrH°10. ± 1.kcal/molKinSTurner, Simpson, et al., 1983solvent: Liquid krypton; The reaction enthalpy relies on the experimental value for the activation enthalpy, 10. ± 1. kcal/mol, and on the assumption that the activation enthalpy for product recombination is negligible Turner, Simpson, et al., 1983.; MS

N+ + Nitrogen = (N+ • Nitrogen)

By formula: N+ + N2 = (N+ • N2)

Quantity Value Units Method Reference Comment
ΔrH°59.4kcal/molN/ANational Bureau of Standards, 1968gas phase; from ΔrH(f); M
ΔrH°60.kcal/molEISaporoschenko, 1965gas phase; M
ΔrH°59.kcal/molEIFranklin, Dibeler, et al., 1958gas phase; M

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
86.2 (+1.8,-0.) CIDHaynes, Freysinger, et al., 1995gas phase; guided ion beam CID; M

Copper ion (1+) + Nitrogen = (Copper ion (1+) • Nitrogen)

By formula: Cu+ + N2 = (Cu+ • N2)

Quantity Value Units Method Reference Comment
ΔrH°6.2kcal/molHPMSEl-Shall, Schriver, et al., 1989gas phase; Cu+ from laser desrption; M
Quantity Value Units Method Reference Comment
ΔrS°16.cal/mol*KHPMSEl-Shall, Schriver, et al., 1989gas phase; Cu+ from laser desrption; M
Quantity Value Units Method Reference Comment
ΔrG°1.4kcal/molHPMSEl-Shall, Schriver, et al., 1989gas phase; Cu+ from laser desrption; M

(HN2+ • 2Nitrogen) + Nitrogen = (HN2+ • 3Nitrogen)

By formula: (HN2+ • 2N2) + N2 = (HN2+ • 3N2)

Quantity Value Units Method Reference Comment
ΔrH°3.4 ± 0.3kcal/molPHPMSHiraoka and Mori, 1989gas phase; M
ΔrH°3.8kcal/molPHPMSHiraoka, Saluja, et al., 1979gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°20.1cal/mol*KPHPMSHiraoka and Mori, 1989gas phase; M
ΔrS°20.cal/mol*KPHPMSHiraoka, Saluja, et al., 1979gas phase; M

(HN2+ • 3Nitrogen) + Nitrogen = (HN2+ • 4Nitrogen)

By formula: (HN2+ • 3N2) + N2 = (HN2+ • 4N2)

Quantity Value Units Method Reference Comment
ΔrH°3.3 ± 0.3kcal/molPHPMSHiraoka and Mori, 1989gas phase; M
ΔrH°3.5kcal/molPHPMSHiraoka, Saluja, et al., 1979gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°21.2cal/mol*KPHPMSHiraoka and Mori, 1989gas phase; M
ΔrS°20.cal/mol*KPHPMSHiraoka, Saluja, et al., 1979gas phase; M

(HN2+ • Nitrogen) + Nitrogen = (HN2+ • 2Nitrogen)

By formula: (HN2+ • N2) + N2 = (HN2+ • 2N2)

Quantity Value Units Method Reference Comment
ΔrH°3.6 ± 0.3kcal/molPHPMSHiraoka and Mori, 1989gas phase; M
ΔrH°4.0kcal/molPHPMSHiraoka, Saluja, et al., 1979gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°19.2cal/mol*KPHPMSHiraoka and Mori, 1989gas phase; M
ΔrS°18.cal/mol*KPHPMSHiraoka, Saluja, et al., 1979gas phase; M

Sodium ion (1+) + Nitrogen = (Sodium ion (1+) • Nitrogen)

By formula: Na+ + N2 = (Na+ • N2)

Quantity Value Units Method Reference Comment
ΔrH°8.0kcal/molFAPerry, Rowe, et al., 1980gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°18.6cal/mol*KFAPerry, Rowe, et al., 1980gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
2.2310.FAPerry, Rowe, et al., 1980gas phase; M
2.0310.DTBeyer and Keller, 1971gas phase; low E/N; M

HN2+ + Nitrogen = (HN2+ • Nitrogen)

By formula: HN2+ + N2 = (HN2+ • N2)

Quantity Value Units Method Reference Comment
ΔrH°16.0kcal/molPHPMSHiraoka, Saluja, et al., 1979gas phase; M
ΔrH°14.5kcal/molPHPMSMeot-Ner (Mautner) and Field, 1974gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°24.cal/mol*KPHPMSHiraoka, Saluja, et al., 1979gas phase; M
ΔrS°20.4cal/mol*KPHPMSMeot-Ner (Mautner) and Field, 1974gas phase; M

C39H66N2O3P2W (solution) + Hydrogen (g) = C39H68O3P2W (solution) + Nitrogen (g)

By formula: C39H66N2O3P2W (solution) + H2 (g) = C39H68O3P2W (solution) + N2 (g)

Quantity Value Units Method Reference Comment
ΔrH°4.40 ± 0.41kcal/molEqSGonzalez and Hoff, 1989solvent: Tetrahydrofuran; Temperature range: 288-308 K; MS

C39H66MoO3P3 (solution) + Nitrogen (g) = C39H66MoN2O3P2 (solution)

By formula: C39H66MoO3P3 (solution) + N2 (g) = C39H66MoN2O3P2 (solution)

Quantity Value Units Method Reference Comment
ΔrH°-9.01 ± 0.60kcal/molEqSGonzalez and Hoff, 1989solvent: Tetrahydrofuran; Temperature range: 294-308 K; MS

(Hydronium cation • 2Nitrogen • 3Water) + Nitrogen = (Hydronium cation • 3Nitrogen • 3Water)

By formula: (H3O+ • 2N2 • 3H2O) + N2 = (H3O+ • 3N2 • 3H2O)

Quantity Value Units Method Reference Comment
ΔrH°1.2kcal/molDTGheno and Fitaire, 1987gas phase; ΔrH, ΔrS approximate; M
Quantity Value Units Method Reference Comment
ΔrS°6.4cal/mol*KDTGheno and Fitaire, 1987gas phase; ΔrH, ΔrS approximate; M

(Oxygen cation • 4Nitrogen) + Nitrogen = (Oxygen cation • 5Nitrogen)

By formula: (O2+ • 4N2) + N2 = (O2+ • 5N2)

Quantity Value Units Method Reference Comment
ΔrH°2.7 ± 0.2kcal/molPHPMSHiraoka and Nakajima, 1988gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°16.2cal/mol*KPHPMSHiraoka and Nakajima, 1988gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
0.7184.HPMSSpeller and Fitaire, 1983gas phase; M

(Nitric oxide anion • 2Nitrogen) + Nitrogen = (Nitric oxide anion • 3Nitrogen)

By formula: (NO- • 2N2) + N2 = (NO- • 3N2)

Quantity Value Units Method Reference Comment
ΔrH°3.8 ± 0.3kcal/molPHPMSHiraoka and Yamabe, 1989gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°16.8cal/mol*KPHPMSHiraoka and Yamabe, 1989gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
0.9204.HPMSSpeller, Fitaire, et al., 1983gas phase; M

(Nitric oxide anion • 3Nitrogen) + Nitrogen = (Nitric oxide anion • 4Nitrogen)

By formula: (NO- • 3N2) + N2 = (NO- • 4N2)

Quantity Value Units Method Reference Comment
ΔrH°3.4 ± 0.3kcal/molPHPMSHiraoka and Yamabe, 1989gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°17.9cal/mol*KPHPMSHiraoka and Yamabe, 1989gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
0.4204.HPMSSpeller, Fitaire, et al., 1983gas phase; M

(Oxygen cation • 3Nitrogen) + Nitrogen = (Oxygen cation • 4Nitrogen)

By formula: (O2+ • 3N2) + N2 = (O2+ • 4N2)

Quantity Value Units Method Reference Comment
ΔrH°4.0 ± 0.3kcal/molPHPMSHiraoka and Nakajima, 1988gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°22.5cal/mol*KPHPMSHiraoka and Nakajima, 1988gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
0.7204.HPMSSpeller and Fitaire, 1983gas phase; M

(Hydronium cation • 3Nitrogen • 2Water) + Nitrogen = (Hydronium cation • 4Nitrogen • 2Water)

By formula: (H3O+ • 3N2 • 2H2O) + N2 = (H3O+ • 4N2 • 2H2O)

Quantity Value Units Method Reference Comment
ΔrH°3.kcal/molDTGheno and Fitaire, 1987gas phase; ΔrH, ΔrS approximate; M
Quantity Value Units Method Reference Comment
ΔrS°12.cal/mol*KDTGheno and Fitaire, 1987gas phase; ΔrH, ΔrS approximate; M

(Nitric oxide anion • 9Nitrogen) + Nitrogen = (Nitric oxide anion • 10Nitrogen)

By formula: (NO- • 9N2) + N2 = (NO- • 10N2)

Quantity Value Units Method Reference Comment
ΔrH°1.68kcal/molPHPMSHiraoka and Yamabe, 1989gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°19.cal/mol*KN/AHiraoka and Yamabe, 1989gas phase; Entropy change calculated or estimated; M

(HN2+ • 10Nitrogen) + Nitrogen = (HN2+ • 11Nitrogen)

By formula: (HN2+ • 10N2) + N2 = (HN2+ • 11N2)

Quantity Value Units Method Reference Comment
ΔrH°1.72kcal/molPHPMSHiraoka and Mori, 1989gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°22.cal/mol*KN/AHiraoka and Mori, 1989gas phase; Entropy change calculated or estimated; M

O3- + Nitrogen = (O3- • Nitrogen)

By formula: O3- + N2 = (O3- • N2)

Quantity Value Units Method Reference Comment
ΔrH°2.70 ± 0.20kcal/molTDAsHiraoka, 1988gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°18.4cal/mol*KPHPMSHiraoka, 1988gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°-2.80 ± 0.50kcal/molTDAsHiraoka, 1988gas phase; B

(C2H5+ • Nitrogen) + Nitrogen = (C2H5+ • 2Nitrogen)

By formula: (C2H5+ • N2) + N2 = (C2H5+ • 2N2)

Quantity Value Units Method Reference Comment
ΔrH°4.6kcal/molHPMSSpeller, 1983gas phase; deuterated, Entropy change is questionable; M
Quantity Value Units Method Reference Comment
ΔrS°10.9cal/mol*KHPMSSpeller, 1983gas phase; deuterated, Entropy change is questionable; M

(Nitrogen cation • Nitrogen) + Nitrogen = (Nitrogen cation • 2Nitrogen)

By formula: (N2+ • N2) + N2 = (N2+ • 2N2)

Quantity Value Units Method Reference Comment
ΔrH°2.8 ± 0.2kcal/molPHPMSHiraoka and Nakajima, 1988gas phase; M
ΔrH°1.4kcal/molPILinn, Ono, et al., 1981gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°15.0cal/mol*KPHPMSHiraoka and Nakajima, 1988gas phase; M

(Oxygen cation • Oxygen) + Nitrogen = (Oxygen cation • Nitrogen • Oxygen)

By formula: (O2+ • O2) + N2 = (O2+ • N2 • O2)

Quantity Value Units Method Reference Comment
ΔrH°2.9kcal/molHPMSSpeller and Fitaire, 1983gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
ΔrS°10.1cal/mol*KHPMSSpeller and Fitaire, 1983gas phase; Entropy change is questionable; M

(Sodium ion (1+) • Nitrogen) + Nitrogen = (Sodium ion (1+) • 2Nitrogen)

By formula: (Na+ • N2) + N2 = (Na+ • 2N2)

Quantity Value Units Method Reference Comment
ΔrH°5.3kcal/molFAPerry, Rowe, et al., 1980gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°16.8cal/mol*KFAPerry, Rowe, et al., 1980gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
-0.3310.FAPerry, Rowe, et al., 1980gas phase; M

(CH2N+ • 2Nitrogen) + Nitrogen = (CH2N+ • 3Nitrogen)

By formula: (CH2N+ • 2N2) + N2 = (CH2N+ • 3N2)

Quantity Value Units Method Reference Comment
ΔrH°3.2kcal/molHPMSSpeller, Fitaire, et al., 1982gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
ΔrS°13.1cal/mol*KHPMSSpeller, Fitaire, et al., 1982gas phase; Entropy change is questionable; M

(CH2N+ • 3Nitrogen) + Nitrogen = (CH2N+ • 4Nitrogen)

By formula: (CH2N+ • 3N2) + N2 = (CH2N+ • 4N2)

Quantity Value Units Method Reference Comment
ΔrH°3.1kcal/molHPMSSpeller, Fitaire, et al., 1982gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
ΔrS°13.8cal/mol*KHPMSSpeller, Fitaire, et al., 1982gas phase; Entropy change is questionable; M

(CH2N+ • 4Nitrogen) + Nitrogen = (CH2N+ • 5Nitrogen)

By formula: (CH2N+ • 4N2) + N2 = (CH2N+ • 5N2)

Quantity Value Units Method Reference Comment
ΔrH°3.2kcal/molHPMSSpeller, Fitaire, et al., 1982gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
ΔrS°15.2cal/mol*KHPMSSpeller, Fitaire, et al., 1982gas phase; Entropy change is questionable; M

2,5-Pyrrolidinedione, 1-bromo- + 0.5Hydrazine = Hydrogen bromide + Succinimide + 0.5Nitrogen

By formula: C4H4BrNO2 + 0.5H4N2 = HBr + C4H5NO2 + 0.5N2

Quantity Value Units Method Reference Comment
ΔrH°-62.22 ± 0.11kcal/molCmHoward and Skinner, 1966solid phase; solvent: Aqueous solution; Reanalyzed by Pedley, Naylor, et al., 1986, Original value = -62.55 ± 0.11 kcal/mol; ALS

Oxygen anion + Nitrogen = (Oxygen anion • Nitrogen)

By formula: O2- + N2 = (O2- • N2)

Quantity Value Units Method Reference Comment
ΔrH°6.0 ± 1.0kcal/molN/APosey and Johnson, 1988gas phase; B
ΔrH°<13.60kcal/molIMRBAdams and Bohme, 1970gas phase; N2..O2- + O2 -> O4-; B

C12H34P4Ru (solution) + Nitrogen (solution) = C12H32N2P4Ru (solution) + Hydrogen (solution)

By formula: C12H34P4Ru (solution) + N2 (solution) = C12H32N2P4Ru (solution) + H2 (solution)

Quantity Value Units Method Reference Comment
ΔrH°3.90kcal/molPACBelt, Scaiano, et al., 1993solvent: Cyclohexane; The reaction enthalpy relies on 0.85 for the quantum yield of H2 dissociation.; MS

(Hydronium cation • 2Nitrogen • 2Water) + Nitrogen = (Hydronium cation • 3Nitrogen • 2Water)

By formula: (H3O+ • 2N2 • 2H2O) + N2 = (H3O+ • 3N2 • 2H2O)

Quantity Value Units Method Reference Comment
ΔrH°9.0 ± 2.7kcal/molDTGheno and Fitaire, 1987gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°28.4cal/mol*KDTGheno and Fitaire, 1987gas phase; M

Vanadium, tetracarbonyl(η5-2,4-cyclopentadien-1-yl)- (solution) + Nitrogen (solution) = C8H5N2O3V (solution) + Carbon monoxide (solution)

By formula: C9H5O4V (solution) + N2 (solution) = C8H5N2O3V (solution) + CO (solution)

Quantity Value Units Method Reference Comment
ΔrH°6.5 ± 1.kcal/molPACJohnson, Popov, et al., 1991solvent: Heptane; The reaction enthalpy relies on 0.80 for the quantum yield of CO dissociation.; MS

(Oxygen anion • 2Nitrogen • Oxygen) + Nitrogen = (Oxygen anion • 3Nitrogen • Oxygen)

By formula: (O2- • 2N2 • O2) + N2 = (O2- • 3N2 • O2)

Quantity Value Units Method Reference Comment
ΔrH°2.5 ± 0.2kcal/molPHPMSHiraoka, 1988gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°18.3cal/mol*KPHPMSHiraoka, 1988gas phase; M

(Oxygen anion • 3Nitrogen • Oxygen) + Nitrogen = (Oxygen anion • 4Nitrogen • Oxygen)

By formula: (O2- • 3N2 • O2) + N2 = (O2- • 4N2 • O2)

Quantity Value Units Method Reference Comment
ΔrH°2.2 ± 0.2kcal/molPHPMSHiraoka, 1988gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°18.7cal/mol*KPHPMSHiraoka, 1988gas phase; M

(Oxygen anion • 4Nitrogen • Oxygen) + Nitrogen = (Oxygen anion • 5Nitrogen • Oxygen)

By formula: (O2- • 4N2 • O2) + N2 = (O2- • 5N2 • O2)

Quantity Value Units Method Reference Comment
ΔrH°1.9 ± 0.2kcal/molPHPMSHiraoka, 1988gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°19.5cal/mol*KPHPMSHiraoka, 1988gas phase; M

(Oxygen anion • 5Nitrogen • Oxygen) + Nitrogen = (Oxygen anion • 6Nitrogen • Oxygen)

By formula: (O2- • 5N2 • O2) + N2 = (O2- • 6N2 • O2)

Quantity Value Units Method Reference Comment
ΔrH°1.8 ± 0.2kcal/molPHPMSHiraoka, 1988gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°19.5cal/mol*KPHPMSHiraoka, 1988gas phase; M

(Oxygen anion • 6Nitrogen • Oxygen) + Nitrogen = (Oxygen anion • 7Nitrogen • Oxygen)

By formula: (O2- • 6N2 • O2) + N2 = (O2- • 7N2 • O2)

Quantity Value Units Method Reference Comment
ΔrH°1.7 ± 0.2kcal/molPHPMSHiraoka, 1988gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°18.8cal/mol*KPHPMSHiraoka, 1988gas phase; M

(Oxygen anion • Nitrogen • Oxygen) + Nitrogen = (Oxygen anion • 2Nitrogen • Oxygen)

By formula: (O2- • N2 • O2) + N2 = (O2- • 2N2 • O2)

Quantity Value Units Method Reference Comment
ΔrH°2.8 ± 0.2kcal/molPHPMSHiraoka, 1988gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°17.9cal/mol*KPHPMSHiraoka, 1988gas phase; M

(Hydronium cation • 2Nitrogen • Water) + Nitrogen = (Hydronium cation • 3Nitrogen • Water)

By formula: (H3O+ • 2N2 • H2O) + N2 = (H3O+ • 3N2 • H2O)

Quantity Value Units Method Reference Comment
ΔrH°8. ± 2.kcal/molDTGheno and Fitaire, 1987gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°22.cal/mol*KDTGheno and Fitaire, 1987gas phase; M

(Hydronium cation • Nitrogen • 2Water) + Nitrogen = (Hydronium cation • 2Nitrogen • 2Water)

By formula: (H3O+ • N2 • 2H2O) + N2 = (H3O+ • 2N2 • 2H2O)

Quantity Value Units Method Reference Comment
ΔrH°5.2kcal/molDTGheno and Fitaire, 1987gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°16.6cal/mol*KDTGheno and Fitaire, 1987gas phase; M

(Hydronium cation • Nitrogen • 3Water) + Nitrogen = (Hydronium cation • 2Nitrogen • 3Water)

By formula: (H3O+ • N2 • 3H2O) + N2 = (H3O+ • 2N2 • 3H2O)

Quantity Value Units Method Reference Comment
ΔrH°4.4kcal/molDTGheno and Fitaire, 1987gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°15.7cal/mol*KDTGheno and Fitaire, 1987gas phase; M

(Oxygen cation • 10Nitrogen) + Nitrogen = (Oxygen cation • 11Nitrogen)

By formula: (O2+ • 10N2) + N2 = (O2+ • 11N2)

Quantity Value Units Method Reference Comment
ΔrH°1.4 ± 0.3kcal/molPHPMSHiraoka and Nakajima, 1988gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°20.2cal/mol*KPHPMSHiraoka and Nakajima, 1988gas phase; M

(Nitrogen cation • 10Nitrogen) + Nitrogen = (Nitrogen cation • 11Nitrogen)

By formula: (N2+ • 10N2) + N2 = (N2+ • 11N2)

Quantity Value Units Method Reference Comment
ΔrH°1.7 ± 0.2kcal/molPHPMSHiraoka and Nakajima, 1988gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°20.2cal/mol*KPHPMSHiraoka and Nakajima, 1988gas phase; M

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Notes

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

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Hiraoka and Yamabe, 1989
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Speller, Fitaire, et al., 1983
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Turner and Conway, 1976
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Johnsen, Huang, et al., 1975
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Dunkin, Fehsenfeld, et al., 1971
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Payzant, J.D.; Kebarle, P., Clustering Equilibrium N2+ + 2N2 = N4+ + N2 and the Bond Dissociation Energy of N4+, J. Chem. Phys., 1970, 53, 12, 4723, https://doi.org/10.1063/1.1674010 . [all data]

Varney, 1968
Varney, R.N., Equilibrium Constant and Rates for the Reversible Reaction N4+ -> N2+ + N2, Phys. Rev., 1968, 174, 1, 165, https://doi.org/10.1103/PhysRev.174.165 . [all data]

Varney, 1959
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Speller and Fitaire, 1983
Speller, C.V.; Fitaire, M., Proceedings of the 16th International Conference on Phenomena of Ionized Gases, H. Boetticher, H. Wenk and E. Shulz - Gulde, ed(s)., ICPIG, Dusseldorf, 1983, 568. [all data]

Janik and Conway, 1967
Janik, G.S.; Conway, D.C., Bonding in Heteromolecular Ion Clusters. N2O2+, J. Phys. Chem., 1967, 71, 4, 823, https://doi.org/10.1021/j100863a007 . [all data]

Howard, Bierbaum, et al., 1972
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Hiraoka, K.; Mori, T., Gas Phase Stabilities of the Cluster Ions H+(CO)2(CO)n, H+(N2)2(N2)n and H+(O2)2(O2)n with n = 1 - 14, Chem. Phys., 1989, 137, 1-3, 345, https://doi.org/10.1016/0301-0104(89)87119-8 . [all data]

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Saporoschenko, 1965
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Franklin, Dibeler, et al., 1958
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Notes

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