NH4+

Ion clustering data

Go To: Top, Vibrational and/or electronic energy levels, 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: Michael M. Meot-Ner (Mautner) and Sharon G. Lias

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

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

By formula: H4N+ + CHN = (H4N+ • CHN)

Quantity Value Units Method Reference Comment
ΔrH°21.9kcal/molPHPMSDeakyne, Knuth, et al., 1994gas phase
ΔrH°20.5kcal/molPHPMSSpeller and Meot-Ner (Mautner), 1985gas phase
Quantity Value Units Method Reference Comment
ΔrS°23.4cal/mol*KPHPMSDeakyne, Knuth, et al., 1994gas phase
ΔrS°20.2cal/mol*KPHPMSSpeller and Meot-Ner (Mautner), 1985gas phase

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

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

Quantity Value Units Method Reference Comment
ΔrH°17.4kcal/molPHPMSDeakyne, Knuth, et al., 1994gas phase
Quantity Value Units Method Reference Comment
ΔrS°23.4cal/mol*KPHPMSDeakyne, Knuth, et al., 1994gas phase

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

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

Quantity Value Units Method Reference Comment
ΔrH°13.7kcal/molPHPMSDeakyne, Knuth, et al., 1994gas phase
Quantity Value Units Method Reference Comment
ΔrS°21.5cal/mol*KPHPMSDeakyne, Knuth, et al., 1994gas phase

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

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

Quantity Value Units Method Reference Comment
ΔrH°11.0kcal/molPHPMSDeakyne, Knuth, et al., 1994gas phase
Quantity Value Units Method Reference Comment
ΔrS°20.9cal/mol*KPHPMSDeakyne, Knuth, et al., 1994gas phase

(NH4+ • 4Hydrogen cyanide) + Hydrogen cyanide = (NH4+ • 5Hydrogen cyanide)

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

Quantity Value Units Method Reference Comment
ΔrH°7.9kcal/molPHPMSDeakyne, Knuth, et al., 1994gas phase
Quantity Value Units Method Reference Comment
ΔrS°18.9cal/mol*KPHPMSDeakyne, Knuth, et al., 1994gas phase

(NH4+ • 5Hydrogen cyanide) + Hydrogen cyanide = (NH4+ • 6Hydrogen cyanide)

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

Quantity Value Units Method Reference Comment
ΔrH°7.4kcal/molPHPMSDeakyne, Knuth, et al., 1994gas phase
Quantity Value Units Method Reference Comment
ΔrS°19.9cal/mol*KPHPMSDeakyne, Knuth, et al., 1994gas phase

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

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

Quantity Value Units Method Reference Comment
ΔrH°18.8kcal/molPHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated
Quantity Value Units Method Reference Comment
ΔrS°22.cal/mol*KN/ADeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
9.4429.PHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated

(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
ΔrH°12.2kcal/molPHPMSDeakyne, Knuth, et al., 1994gas phase
Quantity Value Units Method Reference Comment
ΔrS°19.4cal/mol*KPHPMSDeakyne, Knuth, et al., 1994gas phase

(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
ΔrH°11.2kcal/molPHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated
Quantity Value Units Method Reference Comment
ΔrS°20.cal/mol*KN/ADeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
4.9315.PHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated

(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
ΔrH°12.8kcal/molPHPMSDeakyne, Knuth, et al., 1994gas phase
Quantity Value Units Method Reference Comment
ΔrS°24.1cal/mol*KPHPMSDeakyne, Knuth, et al., 1994gas phase

(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
ΔrH°8.6kcal/molPHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated, T = 392 in paper is error
Quantity Value Units Method Reference Comment
ΔrS°20.cal/mol*KN/ADeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated, T = 392 in paper is error

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
2.7292.PHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated, T = 392 in paper is error

NH4+ + Methane = (NH4+ • Methane)

By formula: H4N+ + CH4 = (H4N+ • CH4)

Quantity Value Units Method Reference Comment
ΔrH°3.6kcal/molHPMSBennet and Field, 1972gas phase; Entropy change is questionable
Quantity Value Units Method Reference Comment
ΔrS°15.5cal/mol*KHPMSBennet and Field, 1972gas phase; Entropy change is questionable

NH4+ + Carbon dioxide = (NH4+ • Carbon dioxide)

By formula: H4N+ + CO2 = (H4N+ • CO2)

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
2.3296.FASpears and Fehsenfeld, 1972gas phase

NH4+ + Acetonitrile = (NH4+ • Acetonitrile)

By formula: H4N+ + C2H3N = (H4N+ • C2H3N)

Quantity Value Units Method Reference Comment
ΔrH°27.6kcal/molPHPMSLiebman, Romm, et al., 1991gas phase
Quantity Value Units Method Reference Comment
ΔrS°24.2cal/mol*KPHPMSLiebman, Romm, et al., 1991gas phase

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

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

Quantity Value Units Method Reference Comment
ΔrH°21.2kcal/molPHPMSLiebman, Romm, et al., 1991gas phase
Quantity Value Units Method Reference Comment
ΔrS°25.4cal/mol*KPHPMSLiebman, Romm, et al., 1991gas phase

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

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

Quantity Value Units Method Reference Comment
ΔrH°14.2kcal/molPHPMSLiebman, Romm, et al., 1991gas phase
Quantity Value Units Method Reference Comment
ΔrS°19.5cal/mol*KPHPMSLiebman, Romm, et al., 1991gas phase

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

By formula: (H4N+ • 3C2H3N) + C2H3N = (H4N+ • 4C2H3N)

Quantity Value Units Method Reference Comment
ΔrH°11.7kcal/molPHPMSLiebman, Romm, et al., 1991gas phase
Quantity Value Units Method Reference Comment
ΔrS°22.2cal/mol*KPHPMSLiebman, Romm, et al., 1991gas phase

NH4+ + Ethylene = (NH4+ • Ethylene)

By formula: H4N+ + C2H4 = (H4N+ • C2H4)

Quantity Value Units Method Reference Comment
ΔrH°10.kcal/molPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated
Quantity Value Units Method Reference Comment
ΔrS°20.cal/mol*KN/ADeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.7294.PHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated

NH4+ + Cyanogen = (NH4+ • Cyanogen)

By formula: H4N+ + C2N2 = (H4N+ • C2N2)

Quantity Value Units Method Reference Comment
ΔrH°10.4kcal/molPHPMSSpeller and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated, DG<, ΔrH<
Quantity Value Units Method Reference Comment
ΔrS°23.cal/mol*KN/ASpeller and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated, DG<, ΔrH<

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.2315.PHPMSSpeller and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated, DG<, ΔrH<

NH4+ + Propiolonitrile = (NH4+ • Propiolonitrile)

By formula: H4N+ + C3HN = (H4N+ • C3HN)

Quantity Value Units Method Reference Comment
ΔrH°22.9kcal/molPHPMSSpeller and Meot-Ner (Mautner), 1985gas phase
Quantity Value Units Method Reference Comment
ΔrS°22.6cal/mol*KPHPMSSpeller and Meot-Ner (Mautner), 1985gas phase

NH4+ + Acetone = (NH4+ • Acetone)

By formula: H4N+ + C3H6O = (H4N+ • C3H6O)

Quantity Value Units Method Reference Comment
ΔrH°28.3kcal/molPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase
Quantity Value Units Method Reference Comment
ΔrS°26.4cal/mol*KPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase

(NH4+ • Acetone) + Acetone = (NH4+ • 2Acetone)

By formula: (H4N+ • C3H6O) + C3H6O = (H4N+ • 2C3H6O)

Quantity Value Units Method Reference Comment
ΔrH°20.3kcal/molPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase
Quantity Value Units Method Reference Comment
ΔrS°24.9cal/mol*KPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase

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

By formula: (H4N+ • 2C3H6O) + C3H6O = (H4N+ • 3C3H6O)

Quantity Value Units Method Reference Comment
ΔrH°15.8kcal/molPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase
Quantity Value Units Method Reference Comment
ΔrS°26.0cal/mol*KPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase

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

By formula: (H4N+ • 3C3H6O) + C3H6O = (H4N+ • 4C3H6O)

Quantity Value Units Method Reference Comment
ΔrH°13.1kcal/molPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase
Quantity Value Units Method Reference Comment
ΔrS°24.4cal/mol*KPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase

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

By formula: (H4N+ • 4C3H6O) + C3H6O = (H4N+ • 5C3H6O)

Quantity Value Units Method Reference Comment
ΔrH°10.1kcal/molPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase; Entropy change calculated or estimated
Quantity Value Units Method Reference Comment
ΔrS°24.0cal/mol*KN/AMeot-Ner (Mautner), Sieck, et al., 1996gas phase; Entropy change calculated or estimated

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
4.5215.PHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase; Entropy change calculated or estimated

NH4+ + Methylal = (NH4+ • Methylal)

By formula: H4N+ + C3H8O2 = (H4N+ • C3H8O2)

Quantity Value Units Method Reference Comment
ΔrH°29.1kcal/molPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase
Quantity Value Units Method Reference Comment
ΔrS°25.2cal/mol*KPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase

NH4+ + Butanenitrile = (NH4+ • Butanenitrile)

By formula: H4N+ + C4H7N = (H4N+ • C4H7N)

Quantity Value Units Method Reference Comment
ΔrH°28.4kcal/molPHPMSSpeller and Meot-Ner (Mautner), 1985gas phase
Quantity Value Units Method Reference Comment
ΔrS°21.6cal/mol*KPHPMSSpeller and Meot-Ner (Mautner), 1985gas phase

NH4+ + 1-Propene, 2-methyl- = (NH4+ • 1-Propene, 2-methyl-)

By formula: H4N+ + C4H8 = (H4N+ • C4H8)

Quantity Value Units Method Reference Comment
ΔrH°35.0kcal/molPHPMSMeot-Ner (Mautner) and Sieck, 1991gas phase; condensation
ΔrH°34.9kcal/molPHPMSMeot-Ner (Mautner) and Sieck, 1990gas phase; forms t-C4H9NH3+
Quantity Value Units Method Reference Comment
ΔrS°37.1cal/mol*KPHPMSMeot-Ner (Mautner) and Sieck, 1991gas phase; condensation
ΔrS°39.2cal/mol*KPHPMSMeot-Ner (Mautner) and Sieck, 1990gas phase; forms t-C4H9NH3+

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

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

Quantity Value Units Method Reference Comment
ΔrH°38. ± 3.kcal/molPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase; possible ether decomposition
Quantity Value Units Method Reference Comment
ΔrS°36.cal/mol*KPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase; possible ether decomposition

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

By formula: (H4N+ • C4H10O2) + C4H10O2 = (H4N+ • 2C4H10O2)

Quantity Value Units Method Reference Comment
ΔrH°23.2kcal/molPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase
Quantity Value Units Method Reference Comment
ΔrS°33.5cal/mol*KPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase

(NH4+ • 2Ethane, 1,2-dimethoxy-) + Ethane, 1,2-dimethoxy- = (NH4+ • 3Ethane, 1,2-dimethoxy-)

By formula: (H4N+ • 2C4H10O2) + C4H10O2 = (H4N+ • 3C4H10O2)

Quantity Value Units Method Reference Comment
ΔrH°14. ± 3.kcal/molPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase
Quantity Value Units Method Reference Comment
ΔrS°27.3cal/mol*KPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase

(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
ΔrH°14.0kcal/molPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase
Quantity Value Units Method Reference Comment
ΔrS°19.4cal/mol*KPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase

NH4+ + Benzene, 1,4-difluoro- = (NH4+ • Benzene, 1,4-difluoro-)

By formula: H4N+ + C6H4F2 = (H4N+ • C6H4F2)

Quantity Value Units Method Reference Comment
ΔrH°13.kcal/molPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated
Quantity Value Units Method Reference Comment
ΔrS°20.cal/mol*KN/ADeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
5.1395.PHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated

NH4+ + Benzene, fluoro- = (NH4+ • Benzene, fluoro-)

By formula: H4N+ + C6H5F = (H4N+ • C6H5F)

Quantity Value Units Method Reference Comment
ΔrH°14.4kcal/molPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase
Quantity Value Units Method Reference Comment
ΔrS°18.0cal/mol*KPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase

NH4+ + Benzene = (NH4+ • Benzene)

By formula: H4N+ + C6H6 = (H4N+ • C6H6)

Quantity Value Units Method Reference Comment
ΔrH°19.3kcal/molPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase
Quantity Value Units Method Reference Comment
ΔrS°23.3cal/mol*KPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase

(NH4+ • Benzene) + Benzene = (NH4+ • 2Benzene)

By formula: (H4N+ • C6H6) + C6H6 = (H4N+ • 2C6H6)

Quantity Value Units Method Reference Comment
ΔrH°17.0kcal/molPHPMSLiebman, Romm, et al., 1991gas phase
Quantity Value Units Method Reference Comment
ΔrS°30.5cal/mol*KPHPMSLiebman, Romm, et al., 1991gas phase

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

By formula: (H4N+ • 2C6H6) + C6H6 = (H4N+ • 3C6H6)

Quantity Value Units Method Reference Comment
ΔrH°14.2kcal/molPHPMSLiebman, Romm, et al., 1991gas phase
Quantity Value Units Method Reference Comment
ΔrS°32.9cal/mol*KPHPMSLiebman, Romm, et al., 1991gas phase

NH4+ + Cyclohexane = (NH4+ • Cyclohexane)

By formula: H4N+ + C6H12 = (H4N+ • C6H12)

Quantity Value Units Method Reference Comment
ΔrH°9.kcal/molPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated, DG<, ΔrH<
Quantity Value Units Method Reference Comment
ΔrS°20.cal/mol*KN/ADeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated, DG<, ΔrH<

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
2.8317.PHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated, DG<, ΔrH<

NH4+ + Mesitylene = (NH4+ • Mesitylene)

By formula: H4N+ + C9H12 = (H4N+ • C9H12)

Quantity Value Units Method Reference Comment
ΔrH°21.8kcal/molPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase
Quantity Value Units Method Reference Comment
ΔrS°21.2cal/mol*KPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase

NH4+ + Water = (NH4+ • Water)

By formula: H4N+ + H2O = (H4N+ • H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°20.6kcal/molPHPMSMeot-Ner (Mautner) and Speller, 1986gas phase
ΔrH°19.9kcal/molPHPMSMeot-Ner (Mautner), 1984gas phase
ΔrH°17.3kcal/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°24.6cal/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1986gas phase
ΔrS°23.1cal/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase
ΔrS°19.7cal/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

(NH4+ • 2Water) + Carbon dioxide = (NH4+ • Carbon dioxide • 2Water)

By formula: (H4N+ • 2H2O) + CO2 = (H4N+ • CO2 • 2H2O)

Quantity Value Units Method Reference Comment
ΔrG°1.3kcal/molHPMSBanic and Iribarne, 1985gas phase; electric fields

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°17.4kcal/molPHPMSMeot-Ner (Mautner) and Speller, 1986gas phase; ΔrH?, Entropy change is questionable, appear out of line
ΔrH°13.7kcal/molPHPMSMeot-Ner (Mautner), 1984gas phase; Entropy change calculated or estimated; ΔrH of 12.4 kcal/mol from plot is too small
ΔrH°14.7kcal/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°28.6cal/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1986gas phase; ΔrH?, Entropy change is questionable, appear out of line
ΔrS°22.0cal/mol*KN/AMeot-Ner (Mautner), 1984gas phase; Entropy change calculated or estimated; ΔrH of 12.4 kcal/mol from plot is too small
ΔrS°21.9cal/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
ΔrG°8.8kcal/molHPMSBanic and Iribarne, 1985gas phase; electric fields

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
4.6414.PHPMSMeot-Ner (Mautner), 1984gas phase; Entropy change calculated or estimated; ΔrH of 12.4 kcal/mol from plot is too small

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°13.7kcal/molPHPMSMeot-Ner (Mautner) and Speller, 1986gas phase
ΔrH°13.4kcal/molPHPMSPayzant, Cunningham, et al., 1973gas phase
ΔrH°12.2kcal/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
ΔrS°24.8cal/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1986gas phase
ΔrS°25.1cal/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase
ΔrS°21.2cal/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
ΔrG°6.5kcal/molHPMSBanic and Iribarne, 1985gas phase; electric fields

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

By formula: (H4N+ • 3H2O) + H2O = (H4N+ • 4H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°10.8kcal/molPHPMSMeot-Ner (Mautner), 1984gas phase
ΔrH°12.2kcal/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°23.0cal/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase
ΔrS°27.3cal/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
ΔrG°5.0kcal/molHPMSBanic and Iribarne, 1985gas phase; electric fields

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

By formula: (H4N+ • 4H2O) + H2O = (H4N+ • 5H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°10.6kcal/molPHPMSMeot-Ner (Mautner), 1984gas phase
ΔrH°9.7kcal/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°27.0cal/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase
ΔrS°22.4cal/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

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

By formula: (H4N+ • 5H2O) + H2O = (H4N+ • 6H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°9.1kcal/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
ΔrS°22.cal/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.2266.PHPMSMeot-Ner (Mautner), 1984gas phase

(NH4+ • 6Water) + Water = (NH4+ • 7Water)

By formula: (H4N+ • 6H2O) + H2O = (H4N+ • 7H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°8.4kcal/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
ΔrS°22.cal/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
2.8254.PHPMSMeot-Ner (Mautner), 1984gas phase

(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
ΔrH°18.4kcal/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°23.0cal/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

(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
ΔrH°18.2kcal/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°30.3cal/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

(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
ΔrH°17.3kcal/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°35.1cal/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

(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
ΔrH°12.7kcal/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°25.0cal/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

(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
ΔrH°11.7kcal/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°27.8cal/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

(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
ΔrH°12.2kcal/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°28.5cal/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

(NH4+ • Water) + Sulfur dioxide = (NH4+ • Sulfur dioxide • Water)

By formula: (H4N+ • H2O) + O2S = (H4N+ • O2S • H2O)

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
6.4300.HPMSBanic and Iribarne, 1985gas phase; electric fields

(NH4+ • 2Water) + Sulfur dioxide = (NH4+ • Sulfur dioxide • 2Water)

By formula: (H4N+ • 2H2O) + O2S = (H4N+ • O2S • 2H2O)

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
5.0300.HPMSBanic and Iribarne, 1985gas phase; electric fields

(NH4+ • 3Water) + Sulfur dioxide = (NH4+ • Sulfur dioxide • 3Water)

By formula: (H4N+ • 3H2O) + O2S = (H4N+ • O2S • 3H2O)

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.6300.HPMSBanic and Iribarne, 1985gas phase; electric fields

(NH4+ • Water • Sulfur dioxide) + Water = (NH4+ • 2Water • Sulfur dioxide)

By formula: (H4N+ • H2O • O2S) + H2O = (H4N+ • 2H2O • O2S)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrG°7.4kcal/molHPMSBanic and Iribarne, 1985gas phase; From thermochemical cycle,switching reaction, electric fields

(NH4+ • 2Water • Sulfur dioxide) + Water = (NH4+ • 3Water • Sulfur dioxide)

By formula: (H4N+ • 2H2O • O2S) + H2O = (H4N+ • 3H2O • O2S)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrG°5.2kcal/molHPMSBanic and Iribarne, 1985gas phase; From thermochemical cycle,switching reaction, electric fields

NH4+ + Hydrogen sulfide = (NH4+ • Hydrogen sulfide)

By formula: H4N+ + H2S = (H4N+ • H2S)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°11.4kcal/molPHPMSMeot-Ner (Mautner) and Sieck, 1985gas phase
Quantity Value Units Method Reference Comment
ΔrS°16.7cal/mol*KPHPMSMeot-Ner (Mautner) and Sieck, 1985gas phase

NH4+ + Ammonia = (NH4+ • Ammonia)

By formula: H4N+ + H3N = (H4N+ • H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°26. ± 2.kcal/molAVGN/AAverage of 4 out of 9 values; Individual data points
Quantity Value Units Method Reference Comment
ΔrS°26. ± 3.cal/mol*KAVGN/AAverage of 4 out of 6 values; Individual data points

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
6.3400.HPMSWincel, 1972gas phase

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

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

Quantity Value Units Method Reference Comment
ΔrH°14.2kcal/molPHPMSDeakyne, Knuth, et al., 1994gas phase
Quantity Value Units Method Reference Comment
ΔrS°18.5cal/mol*KPHPMSDeakyne, Knuth, et al., 1994gas phase

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

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

Quantity Value Units Method Reference Comment
ΔrH°13.4kcal/molPHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated
Quantity Value Units Method Reference Comment
ΔrS°18.3cal/mol*KN/ADeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated

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

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

Quantity Value Units Method Reference Comment
ΔrH°12.9kcal/molPHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated
Quantity Value Units Method Reference Comment
ΔrS°20.cal/mol*KN/ADeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
6.6315.PHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°15.5kcal/molMKERTzeng, Wei, et al., 1991gas phase; from graph

(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
ΔrH°13.6kcal/molMKERTzeng, Wei, et al., 1991gas phase; from graph

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

By formula: (H4N+ • 3H3N • C2H3N) + H3N = (H4N+ • 4H3N • C2H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°7.4kcal/molMKERTzeng, Wei, et al., 1991gas phase; from graph

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

By formula: (H4N+ • 4H3N • C2H3N) + H3N = (H4N+ • 5H3N • C2H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°6.9kcal/molMKERTzeng, Wei, et al., 1991gas phase; from graph

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

By formula: (H4N+ • 5H3N • C2H3N) + H3N = (H4N+ • 6H3N • C2H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°6.0kcal/molMKERTzeng, Wei, et al., 1991gas phase; from graph

(NH4+ • 6Ammonia • Acetonitrile) + Ammonia = (NH4+ • 7Ammonia • Acetonitrile)

By formula: (H4N+ • 6H3N • C2H3N) + H3N = (H4N+ • 7H3N • C2H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°5.5kcal/molMKERTzeng, Wei, et al., 1991gas phase; from graph

(NH4+ • 7Ammonia • Acetonitrile) + Ammonia = (NH4+ • 8Ammonia • Acetonitrile)

By formula: (H4N+ • 7H3N • C2H3N) + H3N = (H4N+ • 8H3N • C2H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°6.0kcal/molMKERTzeng, Wei, et al., 1991gas phase; from graph

(NH4+ • 8Ammonia • Acetonitrile) + Ammonia = (NH4+ • 9Ammonia • Acetonitrile)

By formula: (H4N+ • 8H3N • C2H3N) + H3N = (H4N+ • 9H3N • C2H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°5.5kcal/molMKERTzeng, Wei, et al., 1991gas phase; from graph

(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
ΔrH°12.9kcal/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°20.3cal/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

(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
ΔrH°12.4kcal/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°24.6cal/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

(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
ΔrH°11.7kcal/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°27.9cal/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

(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
ΔrH°17.1kcal/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°31.8cal/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

(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
ΔrH°15.7kcal/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°33.9cal/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

(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
ΔrH°15.0kcal/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°34.3cal/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

(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
ΔrH°17. ± 1.kcal/molAVGN/AAverage of 5 out of 8 values; Individual data points
Quantity Value Units Method Reference Comment
ΔrS°23.9cal/mol*KHPMSTang and Castleman, 1975gas phase
ΔrS°23.7cal/mol*KPHPMSArshadi and Futrell, 1974gas phase
ΔrS°24.8cal/mol*KDTLong and Franklin, 1973gas phase
ΔrS°26.8cal/mol*KPHPMSSearles and Kebarle, 1968gas phase
ΔrS°22.9cal/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase; typographical error in ΔrH

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
9.7296.FAFehsenfeld and Ferguson, 1973gas phase; DG>
10.1296.SAMSPuckett and Teague, 1971gas phase
5.5400.HPMSWincel, 1972gas phase

(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
ΔrH°13. ± 5.kcal/molAVGN/AAverage of 6 out of 9 values; Individual data points
Quantity Value Units Method Reference Comment
ΔrS°25. ± 1.cal/mol*KAVGN/AAverage of 4 out of 7 values; Individual data points

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
6.5296.FAFehsenfeld and Ferguson, 1973gas phase
6.4296.SAMSPuckett and Teague, 1971gas phase

(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
ΔrH°12.2 ± 0.9kcal/molAVGN/AAverage of 5 out of 10 values; Individual data points
Quantity Value Units Method Reference Comment
ΔrS°28. ± 2.cal/mol*KAVGN/AAverage of 3 out of 7 values; Individual data points

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.4296.FAFehsenfeld and Ferguson, 1973gas phase

(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
ΔrH°7.0kcal/molPHPMSArshadi and Futrell, 1974gas phase
ΔrH°7.5kcal/molPHPMSSearles and Kebarle, 1968gas phase
ΔrH°7.kcal/molMKERWei, Tzeng, et al., 1990gas phase; from graph
ΔrH°2.8kcal/molTPEPICOKamke, Herrmann, et al., 1988gas phase
ΔrH°9.6kcal/molDTLong and Franklin, 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°21.5cal/mol*KPHPMSArshadi and Futrell, 1974gas phase
ΔrS°25.cal/mol*KPHPMSSearles and Kebarle, 1968gas phase
ΔrS°32.cal/mol*KDTLong and Franklin, 1973gas phase
Quantity Value Units Method Reference Comment
ΔrG°0.5kcal/molHPMSHogg, Haynes, et al., 1966gas phase

(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
ΔrH°6.5kcal/molPHPMSArshadi and Futrell, 1974gas phase
ΔrH°6.kcal/molMKERWei, Tzeng, et al., 1990gas phase; from graph
Quantity Value Units Method Reference Comment
ΔrS°21.9cal/mol*KPHPMSArshadi and Futrell, 1974gas phase

(NH4+ • 6Ammonia) + Ammonia = (NH4+ • 7Ammonia)

By formula: (H4N+ • 6H3N) + H3N = (H4N+ • 7H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°5.kcal/molMKERWei, Tzeng, et al., 1990gas phase; from graph

(NH4+ • 7Ammonia) + Ammonia = (NH4+ • 8Ammonia)

By formula: (H4N+ • 7H3N) + H3N = (H4N+ • 8H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°5.kcal/molMKERWei, Tzeng, et al., 1990gas phase; from graph

(NH4+ • 8Ammonia) + Ammonia = (NH4+ • 9Ammonia)

By formula: (H4N+ • 8H3N) + H3N = (H4N+ • 9H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°4.kcal/molMKERWei, Tzeng, et al., 1990gas phase; from graph

(NH4+ • 9Ammonia) + Ammonia = (NH4+ • 10Ammonia)

By formula: (H4N+ • 9H3N) + H3N = (H4N+ • 10H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°4.kcal/molMKERWei, Tzeng, et al., 1990gas phase; from graph

(NH4+ • 10Ammonia) + Ammonia = (NH4+ • 11Ammonia)

By formula: (H4N+ • 10H3N) + H3N = (H4N+ • 11H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°5.kcal/molMKERWei, Tzeng, et al., 1990gas phase; from graph

(NH4+ • 11Ammonia) + Ammonia = (NH4+ • 12Ammonia)

By formula: (H4N+ • 11H3N) + H3N = (H4N+ • 12H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°4.kcal/molMKERWei, Tzeng, et al., 1990gas phase; from graph

(NH4+ • 12Ammonia) + Ammonia = (NH4+ • 13Ammonia)

By formula: (H4N+ • 12H3N) + H3N = (H4N+ • 13H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°5.kcal/molMKERWei, Tzeng, et al., 1990gas phase; from graph

(NH4+ • 13Ammonia) + Ammonia = (NH4+ • 14Ammonia)

By formula: (H4N+ • 13H3N) + H3N = (H4N+ • 14H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°4.kcal/molMKERWei, Tzeng, et al., 1990gas phase; from graph

(NH4+ • 14Ammonia) + Ammonia = (NH4+ • 15Ammonia)

By formula: (H4N+ • 14H3N) + H3N = (H4N+ • 15H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°4.kcal/molMKERWei, Tzeng, et al., 1990gas phase; from graph

(NH4+ • 15Ammonia) + Ammonia = (NH4+ • 16Ammonia)

By formula: (H4N+ • 15H3N) + H3N = (H4N+ • 16H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°4.kcal/molMKERWei, Tzeng, et al., 1990gas phase; from graph

NH4+ + Nitrogen = (NH4+ • Nitrogen)

By formula: H4N+ + N2 = (H4N+ • N2)

Quantity Value Units Method Reference Comment
ΔrH°13. ± 5.kcal/molDTGheno and Fitaire, 1987gas phase
Quantity Value Units Method Reference Comment
ΔrS°31.cal/mol*KDTGheno and Fitaire, 1987gas phase

Vibrational and/or electronic energy levels

Go To: Top, 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 compiled by: Marilyn E. Jacox

State:   X

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
f2 3 NH stretch 3343.14 gas LD CC Crofton and Oka, 1983
Schaeffer, Begemann, et al., 1983
Schafer, Saykally, et al., 1984
Keim, Polak, et al., 1990
3 NH stretch 3343.1 H gas PF Dopfer, Nizkorodov, et al., 1996
Lakin, Olkhov, et al., 2001
3 NH stretch 3344.0 gas PF Lakin, Olkhov, et al., 2001
3 NH stretch 3335.8 A gas PF Bieske, Nizkorodov, et al., 1996
Dopfer, Nizkorodov, et al., 1997
Lakin, Dopfer, et al., 2000
Lakin, Dopfer, et al., 2000, 2
3 NH stretch 3357.5 Ne IR Jacox and Thompson, 2005
4 Deformation 1447.22 gas DL Polak, Gruebele, et al., 1989
Park, Xia, et al., 1996
4 Deformation 1442.5 Ne IR Jacox and Thompson, 2005

Additional references: Jacox, 1994, page 229; Jacox, 1998, page 266; Crofton and Oka, 1987; Signorell, Palm, et al., 1997

Notes

H(1/2)(2ν)
A0~1 cm-1 uncertainty

References

Go To: Top, Ion clustering data, Vibrational and/or electronic energy levels, 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

Go To: Top, Ion clustering data, Vibrational and/or electronic energy levels, References