Ammonia

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Reaction thermochemistry data

Go To: Top, 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 as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess
RCD - Robert C. Dunbar

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

(NH4+ • 3Ammonia) + Ammonia = (NH4+ • 4Ammonia)

By formula: (H4N+ • 3H3N) + H3N = (H4N+ • 4H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr51. ± 4.kJ/molAVGN/AAverage of 5 out of 10 values; Individual data points
Quantity Value Units Method Reference Comment
Δr118. ± 8.J/mol*KAVGN/AAverage of 3 out of 7 values; Individual data points

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
14.296.FAFehsenfeld and Ferguson, 1973gas phase; M

(NH4+ • 2Ammonia) + Ammonia = (NH4+ • 3Ammonia)

By formula: (H4N+ • 2H3N) + H3N = (H4N+ • 3H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr50. ± 20.kJ/molAVGN/AAverage of 6 out of 9 values; Individual data points
Quantity Value Units Method Reference Comment
Δr105. ± 5.J/mol*KAVGN/AAverage of 4 out of 7 values; Individual data points

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
27.296.FAFehsenfeld and Ferguson, 1973gas phase; M
27.296.SAMSPuckett and Teague, 1971gas phase; M

(NH4+ • Ammonia) + Ammonia = (NH4+ • 2Ammonia)

By formula: (H4N+ • H3N) + H3N = (H4N+ • 2H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr70. ± 5.kJ/molAVGN/AAverage of 5 out of 8 values; Individual data points
Quantity Value Units Method Reference Comment
Δr100.J/mol*KHPMSTang and Castleman, 1975gas phase; M
Δr99.2J/mol*KPHPMSArshadi and Futrell, 1974gas phase; M
Δr104.J/mol*KDTLong and Franklin, 1973gas phase; M
Δr112.J/mol*KPHPMSSearles and Kebarle, 1968gas phase; M
Δr95.8J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase; typographical error in ΔrH; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
41.296.FAFehsenfeld and Ferguson, 1973gas phase; DG>; M
42.3296.SAMSPuckett and Teague, 1971gas phase; M
23.400.HPMSWincel, 1972gas phase; M

NH4+ + Ammonia = (NH4+ • Ammonia)

By formula: H4N+ + H3N = (H4N+ • H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr107. ± 6.kJ/molAVGN/AAverage of 4 out of 9 values; Individual data points
Quantity Value Units Method Reference Comment
Δr111. ± 10.J/mol*KAVGN/AAverage of 4 out of 6 values; Individual data points

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
26.400.HPMSWincel, 1972gas phase; M

Chlorine anion + Ammonia = (Chlorine anion • Ammonia)

By formula: Cl- + H3N = (Cl- • H3N)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr<30.5 ± 1.7kJ/molN/ATschurl and Boesl, 2008gas phase; B
Δr34.3 ± 0.42kJ/molTDAsEvans, Keesee, et al., 1987gas phase; B,M
Δr37. ± 5.0kJ/molN/AMarkovich, Chesnovsky, et al., 1993gas phase; B
Δr44. ± 17.kJ/molIMRELarson and McMahon, 1984gas phase; B,M
Quantity Value Units Method Reference Comment
Δr64.4J/mol*KHPMSEvans, Keesee, et al., 1987gas phase; M
Δr83.3J/mol*KN/ALarson and McMahon, 1984gas phase; switching reaction(Cl-)CH3F, Entropy change calculated or estimated; Larson and McMahon, 1984, 2; M
Quantity Value Units Method Reference Comment
Δr15.1 ± 0.84kJ/molTDAsEvans, Keesee, et al., 1987gas phase; B
Δr19. ± 8.4kJ/molIMRELarson and McMahon, 1984gas phase; B,M

(NH4+ • 4Ammonia) + Ammonia = (NH4+ • 5Ammonia)

By formula: (H4N+ • 4H3N) + H3N = (H4N+ • 5H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr29.kJ/molPHPMSArshadi and Futrell, 1974gas phase; M
Δr31.kJ/molPHPMSSearles and Kebarle, 1968gas phase; M
Δr30.kJ/molMKERWei, Tzeng, et al., 1990gas phase; from graph; M
Δr12.kJ/molTPEPICOKamke, Herrmann, et al., 1988gas phase; M
Δr40.kJ/molDTLong and Franklin, 1973gas phase; M
Quantity Value Units Method Reference Comment
Δr90.0J/mol*KPHPMSArshadi and Futrell, 1974gas phase; M
Δr100.J/mol*KPHPMSSearles and Kebarle, 1968gas phase; M
Δr130.J/mol*KDTLong and Franklin, 1973gas phase; M
Quantity Value Units Method Reference Comment
Δr2.kJ/molHPMSHogg, Haynes, et al., 1966gas phase; M

Lithium ion (1+) + Ammonia = (Lithium ion (1+) • Ammonia)

By formula: Li+ + H3N = (Li+ • H3N)

Quantity Value Units Method Reference Comment
Δr164.kJ/molICRWoodin and Beauchamp, 1978gas phase; switching reaction(Li+)H2O, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M
Δr161.kJ/molICRStaley and Beauchamp, 1975gas phase; switching reaction(Li+)H2O, from graph; Dzidic and Kebarle, 1970 extrapolated; M
Quantity Value Units Method Reference Comment
Δr96.J/mol*KN/AWoodin and Beauchamp, 1978gas phase; switching reaction(Li+)H2O, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M
Quantity Value Units Method Reference Comment
Δr134.kJ/molICRWoodin and Beauchamp, 1978gas phase; switching reaction(Li+)H2O, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M

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

By formula: (Na+ • H3N) + H3N = (Na+ • 2H3N)

Quantity Value Units Method Reference Comment
Δr93. ± 5.kJ/molAVGN/AAverage of 6 values; Individual data points
Quantity Value Units Method Reference Comment
Δr105.J/mol*KHPMSCastleman, Holland, et al., 1978gas phase; M

H2N- + Hydrogen cation = Ammonia

By formula: H2N- + H+ = H3N

Quantity Value Units Method Reference Comment
Δr1688.0 ± 1.2kJ/molD-EAWickham-Jones, Ervin, et al., 1989gas phase; B
Δr1688.5 ± 3.3kJ/molG+TSMacKay, Hemsworth, et al., 1976gas phase; B
Δr1683.2kJ/molN/ACheck, Faust, et al., 2001gas phase; HCrO3(t); ; ΔS(EA)=6.6; B
Quantity Value Units Method Reference Comment
Δr1656.8 ± 1.6kJ/molH-TSWickham-Jones, Ervin, et al., 1989gas phase; B
Δr1657.3 ± 2.9kJ/molIMREMacKay, Hemsworth, et al., 1976gas phase; B
Δr1654.4kJ/molN/ACheck, Faust, et al., 2001gas phase; HCrO3(t); ; ΔS(EA)=6.6; B

C4H9+ + Ammonia = (C4H9+ • Ammonia)

By formula: C4H9+ + H3N = (C4H9+ • H3N)

Quantity Value Units Method Reference Comment
Δr196.kJ/molPHPMSMeot-Ner (Mautner) and Sieck, 1991gas phase; forms t-C4H9NH3+; M
Δr190.kJ/molPHPMSSzulejko and McMahon, 1991gas phase; forms t-C4H9NH3+; M
Δr195.kJ/molPHPMSMeot-Ner (Mautner) and Sieck, 1990gas phase; forms t-C4H9NH3+; M
Quantity Value Units Method Reference Comment
Δr183.J/mol*KPHPMSMeot-Ner (Mautner) and Sieck, 1991gas phase; forms t-C4H9NH3+; M
Δr198.J/mol*KPHPMSSzulejko and McMahon, 1991gas phase; forms t-C4H9NH3+; M
Δr184.J/mol*KPHPMSMeot-Ner (Mautner) and Sieck, 1990gas phase; forms t-C4H9NH3+; M

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

By formula: Na+ + H3N = (Na+ • H3N)

Quantity Value Units Method Reference Comment
Δr102. ± 5.4kJ/molCIDCAmicangelo and Armentrout, 2001Anchor NH3=24.41; RCD
Δr102. ± 5.4kJ/molCIDTArmentrout and Rodgers, 2000RCD
Δr107. ± 0.8kJ/molHPMSHoyau, Norrman, et al., 1999RCD
Δr122.kJ/molHPMSCastleman, Holland, et al., 1978gas phase; M
Quantity Value Units Method Reference Comment
Δr91200.J/mol*KHPMSHoyau, Norrman, et al., 1999RCD
Δr108.J/mol*KHPMSCastleman, Holland, et al., 1978gas phase; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
77.8298.IMREMcMahon and Ohanessian, 2000Anchor alanine=39.89; RCD

C3H9Sn+ + Ammonia = (C3H9Sn+ • Ammonia)

By formula: C3H9Sn+ + H3N = (C3H9Sn+ • H3N)

Quantity Value Units Method Reference Comment
Δr154.kJ/molPHPMSStone and Splinter, 1984gas phase; switching reaction((CH3)3Sn+)CH3OH/NH3, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr122.J/mol*KN/AStone and Splinter, 1984gas phase; switching reaction((CH3)3Sn+)CH3OH/NH3, Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
90.4525.PHPMSStone and Splinter, 1984gas phase; switching reaction((CH3)3Sn+)CH3OH/NH3, Entropy change calculated or estimated; M

(NH4+ • 3Hydrogen cyanide • Ammonia) + Hydrogen cyanide = (NH4+ • 4Hydrogen cyanide • Ammonia)

By formula: (H4N+ • 3CHN • H3N) + CHN = (H4N+ • 4CHN • H3N)

Quantity Value Units Method Reference Comment
Δr36.kJ/molPHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated, T = 392 in paper is error; M
Quantity Value Units Method Reference Comment
Δr84.J/mol*KN/ADeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated, T = 392 in paper is error; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
11.292.PHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated, T = 392 in paper is error; M

Iodide + Ammonia = (Iodide • Ammonia)

By formula: I- + H3N = (I- • H3N)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr31.0 ± 1.3kJ/molTDAsEvans, Keesee, et al., 1987gas phase; B,M
Δr31. ± 4.2kJ/molTDAsCaldwell, Masucci, et al., 1989gas phase; B,M
Quantity Value Units Method Reference Comment
Δr87.4J/mol*KHPMSEvans, Keesee, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
Δr5.0 ± 2.5kJ/molTDAsEvans, Keesee, et al., 1987gas phase; B

(NH4+ • Ammonia • 2Hydrogen cyanide) + Ammonia = (NH4+ • 2Ammonia • 2Hydrogen cyanide)

By formula: (H4N+ • H3N • 2CHN) + H3N = (H4N+ • 2H3N • 2CHN)

Quantity Value Units Method Reference Comment
Δr54.0kJ/molPHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr84.J/mol*KN/ADeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
28.315.PHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated; M

(NH4+ • Hydrogen cyanide • 2Ammonia) + Hydrogen cyanide = (NH4+ • 2Hydrogen cyanide • 2Ammonia)

By formula: (H4N+ • CHN • 2H3N) + CHN = (H4N+ • 2CHN • 2H3N)

Quantity Value Units Method Reference Comment
Δr46.9kJ/molPHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr84.J/mol*KN/ADeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
21.315.PHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated; M

(NH4+ • Hydrogen cyanide) + Ammonia = (NH4+ • Ammonia • Hydrogen cyanide)

By formula: (H4N+ • CHN) + H3N = (H4N+ • H3N • CHN)

Quantity Value Units Method Reference Comment
Δr78.7kJ/molPHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr92.J/mol*KN/ADeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
39.429.PHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated; M

Bromine anion + Ammonia = (Bromine anion • Ammonia)

By formula: Br- + H3N = (Br- • H3N)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr32.2 ± 0.42kJ/molTDAsEvans, Keesee, et al., 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr79.9J/mol*KHPMSEvans, Keesee, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
Δr8.37 ± 0.84kJ/molTDAsEvans, Keesee, et al., 1987gas phase; B

(NH4+ • 5Ammonia) + Ammonia = (NH4+ • 6Ammonia)

By formula: (H4N+ • 5H3N) + H3N = (H4N+ • 6H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr27.kJ/molPHPMSArshadi and Futrell, 1974gas phase; M
Δr30.kJ/molMKERWei, Tzeng, et al., 1990gas phase; from graph; M
Quantity Value Units Method Reference Comment
Δr91.6J/mol*KPHPMSArshadi and Futrell, 1974gas phase; M

Potassium ion (1+) + Ammonia = (Potassium ion (1+) • Ammonia)

By formula: K+ + H3N = (K+ • H3N)

Quantity Value Units Method Reference Comment
Δr84.1kJ/molHPMSCastleman, 1978gas phase; M
Δr74.5kJ/molHPMSDavidson and Kebarle, 1976gas phase; M
Quantity Value Units Method Reference Comment
Δr96.2J/mol*KHPMSCastleman, 1978gas phase; M
Δr117.J/mol*KHPMSDavidson and Kebarle, 1976gas phase; M

(NH4+ • 2Ammonia) + Hydrogen cyanide = (NH4+ • Hydrogen cyanide • 2Ammonia)

By formula: (H4N+ • 2H3N) + CHN = (H4N+ • CHN • 2H3N)

Quantity Value Units Method Reference Comment
Δr56.1kJ/molPHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr76.6J/mol*KN/ADeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated; M

(NH4+ • Ammonia • 2Water) + Ammonia = (NH4+ • 2Ammonia • 2Water)

By formula: (H4N+ • H3N • 2H2O) + H3N = (H4N+ • 2H3N • 2H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr65.7kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase; M
Quantity Value Units Method Reference Comment
Δr142.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase; M

(NH4+ • Water • 2Ammonia) + Water = (NH4+ • 2Water • 2Ammonia)

By formula: (H4N+ • H2O • 2H3N) + H2O = (H4N+ • 2H2O • 2H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr49.0kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase; M
Quantity Value Units Method Reference Comment
Δr116.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase; M

(C6H15O3+ • Ammonia) + Ethane, 1,1'-oxybis[2-methoxy- = (C6H15O3+ • Ethane, 1,1'-oxybis[2-methoxy- • Ammonia)

By formula: (C6H15O3+ • H3N) + C6H14O3 = (C6H15O3+ • C6H14O3 • H3N)

Bond type: Hydrogen bonds between protonated and neutral organics

Quantity Value Units Method Reference Comment
Δr128.kJ/molPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase; M
Quantity Value Units Method Reference Comment
Δr213.J/mol*KPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase; M

(NH4+ • 2Ammonia • Water) + Ammonia = (NH4+ • 3Ammonia • Water)

By formula: (H4N+ • 2H3N • H2O) + H3N = (H4N+ • 3H3N • H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr62.8kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase; M
Quantity Value Units Method Reference Comment
Δr144.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase; M

(NH4+ • 2Water • Ammonia) + Water = (NH4+ • 3Water • Ammonia)

By formula: (H4N+ • 2H2O • H3N) + H2O = (H4N+ • 3H2O • H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr51.0kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase; M
Quantity Value Units Method Reference Comment
Δr119.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase; M

(NH4+ • Ammonia • Water) + Ammonia = (NH4+ • 2Ammonia • Water)

By formula: (H4N+ • H3N • H2O) + H3N = (H4N+ • 2H3N • H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr71.5kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase; M
Quantity Value Units Method Reference Comment
Δr133.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase; M

(NH4+ • Water • Ammonia) + Water = (NH4+ • 2Water • Ammonia)

By formula: (H4N+ • H2O • H3N) + H2O = (H4N+ • 2H2O • H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr53.1kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase; M
Quantity Value Units Method Reference Comment
Δr105.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase; M

(NH4+ • 2Ammonia) + Water = (NH4+ • Water • 2Ammonia)

By formula: (H4N+ • 2H3N) + H2O = (H4N+ • H2O • 2H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr51.9kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase; M
Quantity Value Units Method Reference Comment
Δr103.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase; M

(NH4+ • 2Water) + Ammonia = (NH4+ • Ammonia • 2Water)

By formula: (H4N+ • 2H2O) + H3N = (H4N+ • H3N • 2H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr76.1kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase; M
Quantity Value Units Method Reference Comment
Δr127.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase; M

(NH4+ • 3Ammonia) + Water = (NH4+ • Water • 3Ammonia)

By formula: (H4N+ • 3H3N) + H2O = (H4N+ • H2O • 3H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr49.0kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase; M
Quantity Value Units Method Reference Comment
Δr117.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase; M

(NH4+ • 3Water) + Ammonia = (NH4+ • Ammonia • 3Water)

By formula: (H4N+ • 3H2O) + H3N = (H4N+ • H3N • 3H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr72.4kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase; M
Quantity Value Units Method Reference Comment
Δr147.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase; M

(NH4+ • Ammonia) + Water = (NH4+ • Water • Ammonia)

By formula: (H4N+ • H3N) + H2O = (H4N+ • H2O • H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr54.0kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase; M
Quantity Value Units Method Reference Comment
Δr84.9J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase; M

(NH4+ • Water) + Ammonia = (NH4+ • Ammonia • Water)

By formula: (H4N+ • H2O) + H3N = (H4N+ • H3N • H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr77.0kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase; M
Quantity Value Units Method Reference Comment
Δr96.2J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase; M

(NH4+ • Ethane, 1,2-dimethoxy-) + Ammonia = (NH4+ • Ammonia • Ethane, 1,2-dimethoxy-)

By formula: (H4N+ • C4H10O2) + H3N = (H4N+ • H3N • C4H10O2)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr58.6kJ/molPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase; M
Quantity Value Units Method Reference Comment
Δr81.2J/mol*KPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase; M

Hydrogen anion + Ammonia = (Hydrogen anion • Ammonia)

By formula: H- + H3N = (H- • H3N)

Quantity Value Units Method Reference Comment
Δr29.7kJ/molEstSnodgrass, Coe, et al., 1995gas phase; Stated electron affinity is the Vertical Detachment Energy; B
Δr35.kJ/molPESCoe, Snodgrass, et al., 1985gas phase; ΔrH<; M

(Copper ion (1+) • 2Ammonia) + Ammonia = (Copper ion (1+) • 3Ammonia)

By formula: (Cu+ • 2H3N) + H3N = (Cu+ • 3H3N)

Quantity Value Units Method Reference Comment
Δr46.9 ± 5.9kJ/molCIDTWalter and Armentrout, 1998RCD
Δr58.6kJ/molHPMSHolland and Castleman, 1982gas phase; M
Quantity Value Units Method Reference Comment
Δr99.6J/mol*KHPMSHolland and Castleman, 1982gas phase; M

(Copper ion (1+) • 3Ammonia) + Ammonia = (Copper ion (1+) • 4Ammonia)

By formula: (Cu+ • 3H3N) + H3N = (Cu+ • 4H3N)

Quantity Value Units Method Reference Comment
Δr41.8 ± 5.9kJ/molCIDTWalter and Armentrout, 1998RCD
Δr53.6kJ/molHPMSHolland and Castleman, 1982gas phase; M
Quantity Value Units Method Reference Comment
Δr120.J/mol*KHPMSHolland and Castleman, 1982gas phase; M

(Lead ion (1+) • 2Ammonia) + Ammonia = (Lead ion (1+) • 3Ammonia)

By formula: (Pb+ • 2H3N) + H3N = (Pb+ • 3H3N)

Quantity Value Units Method Reference Comment
Δr54.4kJ/molHPMSGuo and Castleman, 1991gas phase; ΔrS from graph; M
Quantity Value Units Method Reference Comment
Δr89.5J/mol*KHPMSGuo and Castleman, 1991gas phase; ΔrS from graph; M

(Lead ion (1+) • 3Ammonia) + Ammonia = (Lead ion (1+) • 4Ammonia)

By formula: (Pb+ • 3H3N) + H3N = (Pb+ • 4H3N)

Quantity Value Units Method Reference Comment
Δr44.8kJ/molHPMSGuo and Castleman, 1991gas phase; ΔrS from graph; M
Quantity Value Units Method Reference Comment
Δr102.J/mol*KHPMSGuo and Castleman, 1991gas phase; ΔrS from graph; M

(Lead ion (1+) • Ammonia) + Ammonia = (Lead ion (1+) • 2Ammonia)

By formula: (Pb+ • H3N) + H3N = (Pb+ • 2H3N)

Quantity Value Units Method Reference Comment
Δr80.3kJ/molHPMSGuo and Castleman, 1991gas phase; ΔrS from graph; M
Quantity Value Units Method Reference Comment
Δr113.J/mol*KHPMSGuo and Castleman, 1991gas phase; ΔrS from graph; M

C2H8N+ + Ammonia = (C2H8N+ • Ammonia)

By formula: C2H8N+ + H3N = (C2H8N+ • H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr86.2kJ/molPHPMSYamdagni and Kebarle, 1974gas phase; M
Quantity Value Units Method Reference Comment
Δr118.J/mol*KPHPMSYamdagni and Kebarle, 1974gas phase; M

C6H15O3+ + Ammonia = (C6H15O3+ • Ammonia)

By formula: C6H15O3+ + H3N = (C6H15O3+ • H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr127.kJ/molPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase; M
Quantity Value Units Method Reference Comment
Δr117.J/mol*KPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase; M

CH6N+ + Ammonia = (CH6N+ • Ammonia)

By formula: CH6N+ + H3N = (CH6N+ • H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr89.5kJ/molPHPMSYamdagni and Kebarle, 1974gas phase; M
Quantity Value Units Method Reference Comment
Δr110.J/mol*KPHPMSYamdagni and Kebarle, 1974gas phase; M

Lead ion (1+) + Ammonia = (Lead ion (1+) • Ammonia)

By formula: Pb+ + H3N = (Pb+ • H3N)

Quantity Value Units Method Reference Comment
Δr118.kJ/molHPMSGuo and Castleman, 1991gas phase; ΔrS from graph; M
Quantity Value Units Method Reference Comment
Δr98.7J/mol*KHPMSGuo and Castleman, 1991gas phase; ΔrS from graph; M

(Hydrogen anion • Ammonia) + Ammonia = (Hydrogen anion • 2Ammonia)

By formula: (H- • H3N) + H3N = (H- • 2H3N)

Quantity Value Units Method Reference Comment
Δr33.9kJ/molEstSnodgrass, Coe, et al., 1995gas phase; Affinity: shift in apparent EA from lesser-solvated ion. Ignores any neutral-neutral bond.; B

(H2N- • Ammonia) + Ammonia = (H2N- • 2Ammonia)

By formula: (H2N- • H3N) + H3N = (H2N- • 2H3N)

Quantity Value Units Method Reference Comment
Δr46.44kJ/molEstSnodgrass, Coe, et al., 1989gas phase; Affinity: shift in apparent EA from lesser-solvated ion. Ignores any neutral-neutral bond.; B

(NH4+ • 2Hydrogen cyanide • Ammonia) + Hydrogen cyanide = (NH4+ • 3Hydrogen cyanide • Ammonia)

By formula: (H4N+ • 2CHN • H3N) + CHN = (H4N+ • 3CHN • H3N)

Quantity Value Units Method Reference Comment
Δr53.6kJ/molPHPMSDeakyne, Knuth, et al., 1994gas phase; M
Quantity Value Units Method Reference Comment
Δr101.J/mol*KPHPMSDeakyne, Knuth, et al., 1994gas phase; M

(NH4+ • Hydrogen cyanide • Ammonia) + Hydrogen cyanide = (NH4+ • 2Hydrogen cyanide • Ammonia)

By formula: (H4N+ • CHN • H3N) + CHN = (H4N+ • 2CHN • H3N)

Quantity Value Units Method Reference Comment
Δr51.0kJ/molPHPMSDeakyne, Knuth, et al., 1994gas phase; M
Quantity Value Units Method Reference Comment
Δr81.2J/mol*KPHPMSDeakyne, Knuth, et al., 1994gas phase; M

(NH4+ • 2Ammonia • Acetonitrile) + Ammonia = (NH4+ • 3Ammonia • Acetonitrile)

By formula: (H4N+ • 2H3N • C2H3N) + H3N = (H4N+ • 3H3N • C2H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr56.9kJ/molMKERTzeng, Wei, et al., 1991gas phase; from graph; M

Gas phase ion energetics 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.

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 H3N+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)10.070 ± 0.020eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)853.6kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity819.0kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
10.02PIQi, Sheng, et al., 1995T = 0K; LL
10.07 ± 0.01PIPECORuede, Troxler, et al., 1993LL
10.186TEReiser, Habenicht, et al., 1993LL
10.069 ± 0.002PILocht, Hottmann, et al., 1992LL
10.072 ± 0.010PILocht, Leyh, et al., 1991LL
10.2985 ± 0.0001TEHabenicht, 1989LL
10.45EIBaldwin, Loudon, et al., 1977LLK
10.2PEDebies and Rabalais, 1975LLK
10.18 ± 0.09PEAue, Webb, et al., 1975LLK
10.2EIMorrison and Traeger, 1973LLK
10.15PEPotts and Price, 1972LLK
10.18 ± 0.01PEWeiss and Lawrence, 1970RDSH
14.94 ± 0.03PEWeiss and Lawrence, 1970RDSH
10.14PEBranton, Frost, et al., 1969RDSH
14.92PEBranton, Frost, et al., 1969RDSH
10.16 ± 0.02PIPotapov, 1968RDSH
10.17PIChupka and Russell, 1968RDSH
10.162 ± 0.008PIDibeler, Walker, et al., 1966RDSH
10.166SWatanabe and Sood, 1965RDSH
10.16PEAl-Joboury and Turner, 1964RDSH
15.02PEAl-Joboury and Turner, 1964RDSH
10.15 ± 0.01PIWatanabe and Mottl, 1957RDSH
10.82PEBaumgartel, Jochims, et al., 1989Vertical value; LL
10.8PEBieri, Asbrink, et al., 1982Vertical value; LBLHLM
10.85PEKimura, Katsumata, et al., 1981Vertical value; LLK
11.3PECampbell, Liesegang, et al., 1979Vertical value; LLK
10.85PEDaamen and Oskam, 1978Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
H+18.57H2NPIQi, Sheng, et al., 1995LL
HN+28. ± 1.5H2/2HEIMuller and Schulz, 1990LL
HN+16.9 ± 0.1H2EILocht, Servais, et al., 1988LL
HN+17.2H2EIMorrison and Traeger, 1973LLK
NH+17.1 ± 0.1H2EIReed and Snedden, 1959RDSH
H2N+15.75HPIQi, Sheng, et al., 1995LL
H2N+15.60 ± 0.02HPIPECORuede, Troxler, et al., 1993LL
H2N+15.75HPILocht, Hottmann, et al., 1992LL
H2N+15.76 ± 0.05HPILocht, Servais, et al., 1988LL
H2N+15.76 ± 0.05HEILocht, Servais, et al., 1988LL
H2N+15.5HPIPECOPowis, 1981LLK
H2N+15.87 ± 0.13HDERPowis, 1981LLK
H2N+15.768 ± 0.004HPIMcCulloh, 1976LLK
H2N+15.0HEIMorrison and Traeger, 1973LLK
NH2+15.73 ± 0.02HPIDibeler, Walker, et al., 1966RDSH
NH2+16.0 ± 0.1HEIFoner and Hudson, 1958RDSH
N+≤22.5H2+HEIMorrison and Traeger, 1973LLK
N+22.6 ± 0.1H2+HEIReed and Snedden, 1959RDSH

De-protonation reactions

H2N- + Hydrogen cation = Ammonia

By formula: H2N- + H+ = H3N

Quantity Value Units Method Reference Comment
Δr1688.0 ± 1.2kJ/molD-EAWickham-Jones, Ervin, et al., 1989gas phase; B
Δr1688.5 ± 3.3kJ/molG+TSMacKay, Hemsworth, et al., 1976gas phase; B
Δr1683.2kJ/molN/ACheck, Faust, et al., 2001gas phase; HCrO3(t); ; ΔS(EA)=6.6; B
Quantity Value Units Method Reference Comment
Δr1656.8 ± 1.6kJ/molH-TSWickham-Jones, Ervin, et al., 1989gas phase; B
Δr1657.3 ± 2.9kJ/molIMREMacKay, Hemsworth, et al., 1976gas phase; B
Δr1654.4kJ/molN/ACheck, Faust, et al., 2001gas phase; HCrO3(t); ; ΔS(EA)=6.6; B

References

Go To: Top, Reaction thermochemistry data, 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.

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Notes

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