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NH4+

Reaction thermochemistry data

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

Data compiled by: 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. 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+ bullet 3Ammonia) + Ammonia = (NH4+ bullet 4Ammonia)

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°51. ± 4.kJ/molAVGN/AAverage of 5 out of 10 values; Individual data points
Quantity Value Units Method Reference Comment
DeltarS°118. ± 8.J/mol*KAVGN/AAverage of 3 out of 7 values; Individual data points

Free energy of reaction

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

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°50. ± 20.kJ/molAVGN/AAverage of 6 out of 9 values; Individual data points
Quantity Value Units Method Reference Comment
DeltarS°105. ± 5.J/mol*KAVGN/AAverage of 4 out of 7 values; Individual data points

Free energy of reaction

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

(NH4+ bullet Ammonia) + Ammonia = (NH4+ bullet 2Ammonia)

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°70. ± 5.kJ/molAVGN/AAverage of 5 out of 8 values; Individual data points
Quantity Value Units Method Reference Comment
DeltarS°100.J/mol*KHPMSTang and Castleman, 1975gas phase
DeltarS°99.2J/mol*KPHPMSArshadi and Futrell, 1974gas phase
DeltarS°104.J/mol*KDTLong and Franklin, 1973gas phase
DeltarS°112.J/mol*KPHPMSSearles and Kebarle, 1968gas phase
DeltarS°95.8J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase; typographical error in «DELTA»rH

Free energy of reaction

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

NH4+ + Ammonia = (NH4+ bullet Ammonia)

By formula: H4N+ + H3N = (H4N+ bullet H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°107. ± 6.kJ/molAVGN/AAverage of 4 out of 9 values; Individual data points
Quantity Value Units Method Reference Comment
DeltarS°111. ± 10.J/mol*KAVGN/AAverage of 4 out of 6 values; Individual data points

Free energy of reaction

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

(NH4+ bullet Water) + Water = (NH4+ bullet 2Water)

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°72.8kJ/molPHPMSMeot-Ner (Mautner) and Speller, 1986gas phase; «DELTA»rH?, Entropy change is questionable, appear out of line
DeltarH°57.3kJ/molPHPMSMeot-Ner (Mautner), 1984gas phase; Entropy change calculated or estimated; «DELTA»rH of 51.9 kJ/mol from plot is too small
DeltarH°61.5kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
DeltarS°120.J/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1986gas phase; «DELTA»rH?, Entropy change is questionable, appear out of line
DeltarS°92.0J/mol*KN/AMeot-Ner (Mautner), 1984gas phase; Entropy change calculated or estimated; «DELTA»rH of 51.9 kJ/mol from plot is too small
DeltarS°91.6J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
DeltarG°37.kJ/molHPMSBanic and Iribarne, 1985gas phase; electric fields

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
19.414.PHPMSMeot-Ner (Mautner), 1984gas phase; Entropy change calculated or estimated; «DELTA»rH of 51.9 kJ/mol from plot is too small

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°29.kJ/molPHPMSArshadi and Futrell, 1974gas phase
DeltarH°31.kJ/molPHPMSSearles and Kebarle, 1968gas phase
DeltarH°30.kJ/molMKERWei, Tzeng, et al., 1990gas phase; from graph
DeltarH°12.kJ/molTPEPICOKamke, Herrmann, et al., 1988gas phase
DeltarH°40.kJ/molDTLong and Franklin, 1973gas phase
Quantity Value Units Method Reference Comment
DeltarS°90.0J/mol*KPHPMSArshadi and Futrell, 1974gas phase
DeltarS°100.J/mol*KPHPMSSearles and Kebarle, 1968gas phase
DeltarS°130.J/mol*KDTLong and Franklin, 1973gas phase
Quantity Value Units Method Reference Comment
DeltarG°2.kJ/molHPMSHogg, Haynes, et al., 1966gas phase

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°57.3kJ/molPHPMSMeot-Ner (Mautner) and Speller, 1986gas phase
DeltarH°56.1kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase
DeltarH°51.0kJ/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
DeltarS°104.J/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1986gas phase
DeltarS°105.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase
DeltarS°88.7J/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
DeltarG°27.kJ/molHPMSBanic and Iribarne, 1985gas phase; electric fields

NH4+ + Water = (NH4+ bullet Water)

By formula: H4N+ + H2O = (H4N+ bullet H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°86.2kJ/molPHPMSMeot-Ner (Mautner) and Speller, 1986gas phase
DeltarH°83.3kJ/molPHPMSMeot-Ner (Mautner), 1984gas phase
DeltarH°72.4kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
DeltarS°103.J/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1986gas phase
DeltarS°96.7J/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase
DeltarS°82.4J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

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

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

Quantity Value Units Method Reference Comment
DeltarH°36.kJ/molPHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated, T = 392 in paper is error
Quantity Value Units Method Reference Comment
DeltarS°84.J/mol*KN/ADeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated, T = 392 in paper is error

Free energy of reaction

DeltarG° (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

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°45.2kJ/molPHPMSMeot-Ner (Mautner), 1984gas phase
DeltarH°51.0kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
DeltarS°96.2J/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase
DeltarS°114.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
DeltarG°21.kJ/molHPMSBanic and Iribarne, 1985gas phase; electric fields

NH4+ + Cyanogen = (NH4+ bullet Cyanogen)

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

Quantity Value Units Method Reference Comment
DeltarH°43.5kJ/molPHPMSSpeller and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated, DG<, «DELTA»rH<
Quantity Value Units Method Reference Comment
DeltarS°96.J/mol*KN/ASpeller and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated, DG<, «DELTA»rH<

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
13.315.PHPMSSpeller and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated, DG<, «DELTA»rH<

NH4+ + Cyclohexane = (NH4+ bullet Cyclohexane)

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

Quantity Value Units Method Reference Comment
DeltarH°40.kJ/molPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated, DG<, «DELTA»rH<
Quantity Value Units Method Reference Comment
DeltarS°84.J/mol*KN/ADeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated, DG<, «DELTA»rH<

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
12.317.PHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated, DG<, «DELTA»rH<

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

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

Quantity Value Units Method Reference Comment
DeltarH°54.0kJ/molPHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated
Quantity Value Units Method Reference Comment
DeltarS°84.J/mol*KN/ADeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated

Free energy of reaction

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

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

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

Quantity Value Units Method Reference Comment
DeltarH°46.9kJ/molPHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated
Quantity Value Units Method Reference Comment
DeltarS°84.J/mol*KN/ADeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated

Free energy of reaction

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

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

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

Quantity Value Units Method Reference Comment
DeltarH°78.7kJ/molPHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated
Quantity Value Units Method Reference Comment
DeltarS°92.J/mol*KN/ADeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated

Free energy of reaction

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

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

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

Quantity Value Units Method Reference Comment
DeltarH°42.3kJ/molPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase; Entropy change calculated or estimated
Quantity Value Units Method Reference Comment
DeltarS°100.J/mol*KN/AMeot-Ner (Mautner), Sieck, et al., 1996gas phase; Entropy change calculated or estimated

Free energy of reaction

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

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

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

Quantity Value Units Method Reference Comment
DeltarH°146.kJ/molPHPMSMeot-Ner (Mautner) and Sieck, 1991gas phase; condensation
DeltarH°146.kJ/molPHPMSMeot-Ner (Mautner) and Sieck, 1990gas phase; forms t-C4H9NH3+
Quantity Value Units Method Reference Comment
DeltarS°155.J/mol*KPHPMSMeot-Ner (Mautner) and Sieck, 1991gas phase; condensation
DeltarS°164.J/mol*KPHPMSMeot-Ner (Mautner) and Sieck, 1990gas phase; forms t-C4H9NH3+

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

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

Quantity Value Units Method Reference Comment
DeltarH°54.kJ/molPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated
Quantity Value Units Method Reference Comment
DeltarS°84.J/mol*KN/ADeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated

Free energy of reaction

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

NH4+ + Ethylene = (NH4+ bullet Ethylene)

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

Quantity Value Units Method Reference Comment
DeltarH°42.kJ/molPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated
Quantity Value Units Method Reference Comment
DeltarS°84.J/mol*KN/ADeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated

Free energy of reaction

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

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°44.4kJ/molPHPMSMeot-Ner (Mautner), 1984gas phase
DeltarH°41.kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
DeltarS°113.J/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase
DeltarS°93.7J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°27.kJ/molPHPMSArshadi and Futrell, 1974gas phase
DeltarH°30.kJ/molMKERWei, Tzeng, et al., 1990gas phase; from graph
Quantity Value Units Method Reference Comment
DeltarS°91.6J/mol*KPHPMSArshadi and Futrell, 1974gas phase

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°38.kJ/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
DeltarS°92.J/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
13.266.PHPMSMeot-Ner (Mautner), 1984gas phase

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°35.kJ/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
DeltarS°92.J/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
12.254.PHPMSMeot-Ner (Mautner), 1984gas phase

NH4+ + Hydrogen cyanide = (NH4+ bullet Hydrogen cyanide)

By formula: H4N+ + CHN = (H4N+ bullet CHN)

Quantity Value Units Method Reference Comment
DeltarH°91.6kJ/molPHPMSDeakyne, Knuth, et al., 1994gas phase
DeltarH°85.8kJ/molPHPMSSpeller and Meot-Ner (Mautner), 1985gas phase
Quantity Value Units Method Reference Comment
DeltarS°97.9J/mol*KPHPMSDeakyne, Knuth, et al., 1994gas phase
DeltarS°84.5J/mol*KPHPMSSpeller and Meot-Ner (Mautner), 1985gas phase

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

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

Quantity Value Units Method Reference Comment
DeltarH°56.1kJ/molPHPMSDeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated
Quantity Value Units Method Reference Comment
DeltarS°76.6J/mol*KN/ADeakyne, Knuth, et al., 1994gas phase; Entropy change calculated or estimated

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°65.7kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
DeltarS°142.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°49.0kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
DeltarS°116.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°62.8kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
DeltarS°144.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°51.0kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
DeltarS°119.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°71.5kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
DeltarS°133.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°53.1kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
DeltarS°105.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°51.9kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
DeltarS°103.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°76.1kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
DeltarS°127.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°49.0kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
DeltarS°117.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°72.4kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
DeltarS°147.J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarG°22.kJ/molHPMSBanic and Iribarne, 1985gas phase; From thermochemical cycle,switching reaction, electric fields

(NH4+ bullet Ammonia) + Water = (NH4+ bullet Water bullet Ammonia)

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°54.0kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
DeltarS°84.9J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarG°31.kJ/molHPMSBanic and Iribarne, 1985gas phase; From thermochemical cycle,switching reaction, electric fields

(NH4+ bullet Water) + Ammonia = (NH4+ bullet Ammonia bullet Water)

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°77.0kJ/molPHPMSPayzant, Cunningham, et al., 1973gas phase
Quantity Value Units Method Reference Comment
DeltarS°96.2J/mol*KPHPMSPayzant, Cunningham, et al., 1973gas phase

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°58.6kJ/molPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase
Quantity Value Units Method Reference Comment
DeltarS°81.2J/mol*KPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase

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

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

Quantity Value Units Method Reference Comment
DeltarH°160. ± 10.kJ/molPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase; possible ether decomposition
Quantity Value Units Method Reference Comment
DeltarS°150.J/mol*KPHPMSMeot-Ner (Mautner), Sieck, et al., 1996gas phase; possible ether decomposition

NH4+ + Methane = (NH4+ bullet Methane)

By formula: H4N+ + CH4 = (H4N+ bullet CH4)

Quantity Value Units Method Reference Comment
DeltarH°15.kJ/molHPMSBennet and Field, 1972gas phase; Entropy change is questionable
Quantity Value Units Method Reference Comment
DeltarS°64.9J/mol*KHPMSBennet and Field, 1972gas phase; Entropy change is questionable

NH4+ + Hydrogen sulfide = (NH4+ bullet Hydrogen sulfide)

By formula: H4N+ + H2S = (H4N+ bullet H2S)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°47.7kJ/molPHPMSMeot-Ner (Mautner) and Sieck, 1985gas phase
Quantity Value Units Method Reference Comment
DeltarS°69.9J/mol*KPHPMSMeot-Ner (Mautner) and Sieck, 1985gas phase

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

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

Quantity Value Units Method Reference Comment
DeltarH°53.6kJ/molPHPMSDeakyne, Knuth, et al., 1994gas phase
Quantity Value Units Method Reference Comment
DeltarS°101.J/mol*KPHPMSDeakyne, Knuth, et al., 1994gas phase

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

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

Quantity Value Units Method Reference Comment
DeltarH°51.0kJ/molPHPMSDeakyne, Knuth, et al., 1994gas phase
Quantity Value Units Method Reference Comment
DeltarS°81.2J/mol*KPHPMSDeakyne, Knuth, et al., 1994gas phase

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°56.9kJ/molMKERTzeng, Wei, et al., 1991gas phase; from graph

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°31.kJ/molMKERTzeng, Wei, et al., 1991gas phase; from graph

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°29.kJ/molMKERTzeng, Wei, et al., 1991gas phase; from graph

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°25.kJ/molMKERTzeng, Wei, et al., 1991gas phase; from graph

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
DeltarH°23.kJ/molMKERTzeng, Wei, et al., 1991gas phase; from graph

References

Go To: Top, Reaction thermochemistry data, Notes

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

Fehsenfeld and Ferguson, 1973
Fehsenfeld, F.C.; Ferguson, E.E., Thermal Energy Positive Ion Reactions in a Wet Atmosphere Containing Ammonia, J. Chem. Phys., 1973, 59, 12, 6272, https://doi.org/10.1063/1.1680006 . [all data]

Puckett and Teague, 1971
Puckett, L.J.; Teague, M.W., Ion-Molecule Reactions in NO - NH3 Gas Mixtures, J. Chem. Phys., 1971, 54, 11, 4860, https://doi.org/10.1063/1.1674763 . [all data]

Tang and Castleman, 1975
Tang, I.N.; Castleman, A.W., Gas - Phase Solvation of the Ammonium Ion in Ammonia, J. Chem. Phys., 1975, 62, 11, 4576, https://doi.org/10.1063/1.430331 . [all data]

Arshadi and Futrell, 1974
Arshadi, M.R.; Futrell, J.H., Studies in High - Pressure Mass Spectrometry. V. Thermodynamics of Solvation Reactions. NH4+ - NH3, J. Phys. Chem., 1974, 78, 15, 1482, https://doi.org/10.1021/j100608a008 . [all data]

Long and Franklin, 1973
Long, J.W.; Franklin, J.L., Ion-Cluster Reactions in a Drift Tube Ion Source, Int. J. Mass Spectrom. Ion Phys, 1973, 12, 5, 403, https://doi.org/10.1016/0020-7381(73)80025-7 . [all data]

Searles and Kebarle, 1968
Searles, S.K.; Kebarle, P., Ion-Solvent-Molecule Interactions in the Gas Phase. Enthalpies and Entropies for the Reactions NH4+(NH3)(n-1) + NH3 = NH4+(NH3)n, J. Phys. Chem., 1968, 72, 2, 742, https://doi.org/10.1021/j100848a061 . [all data]

Payzant, Cunningham, et al., 1973
Payzant, J.D.; Cunningham, A.J.; Kebarle, P., Gas - Phase Solvation of Ammonium Ion by NH3 and H2O and Stabilities of Mixed Clusters NH4+(NH3)n(H2O)w, Can. J. Chem., 1973, 51, 19, 3242, https://doi.org/10.1139/v73-485 . [all data]

Wincel, 1972
Wincel, H., Ion-Molecule Reactions in Ammonia at High Pressures, Int. J. Mass Spectrom. Ion Phys., 1972, 9, 3, 267, https://doi.org/10.1016/0020-7381(72)80053-6 . [all data]

Meot-Ner (Mautner) and Speller, 1986
Meot-Ner (Mautner), M.; Speller, C.V., The Filling of Solvent Shells in Cluster Ions: Thermochemical Criteria nd the Effects of Isomeric Clusters, J. Phys. Chem., 1986, 90, 25, 6616, https://doi.org/10.1021/j100283a006 . [all data]

Meot-Ner (Mautner), 1984
Meot-Ner (Mautner), M., The Ionic Hydrogen Bond and Ion Solvation. 2. Hydration of Onium Ions by 1 - 7 H2O Molecules. Relations Between Monomolecular, Specific and Bulk Hydration, J. Am. Chem. Soc., 1984, 106, 5, 1265, https://doi.org/10.1021/ja00317a016 . [all data]

Banic and Iribarne, 1985
Banic, C.M.; Iribarne, J.V., Equilibrium Constants for Clustering of Neutral Molecules about Gaseous Ions, J. Chem. Phys., 1985, 83, 12, 6432, https://doi.org/10.1063/1.449543 . [all data]

Wei, Tzeng, et al., 1990
Wei, S.; Tzeng, W.B.; Castleman, A.W., Kinetic Energy Release Measurements of Ammonia Cluster Ions During Metastable Decomposition and Determination of Cluster Ion Binding Energies, J. Chem. Phys., 1990, 92, 1, 332, https://doi.org/10.1063/1.458434 . [all data]

Kamke, Herrmann, et al., 1988
Kamke, W.; Herrmann, R.; Wang, Z.; Hertel, I.V., On the Photoionization and Fragmentation of Ammonia Clusters using TPEPICO, Z. Phys. D., 1988, 10, 4, 491, https://doi.org/10.1007/BF01425768 . [all data]

Hogg, Haynes, et al., 1966
Hogg, A.M.; Haynes, R.M.; Kebarle, P., Ion-Solvent Molecule Interactions Studied in the Gas Phase. Heats and Entropies of Individual Steps. NH4+.(n-1)NH3 = NH4+.nNH3, J. Am. Chem. Soc., 1966, 88, 1, 28, https://doi.org/10.1021/ja00953a006 . [all data]

Deakyne, Knuth, et al., 1994
Deakyne, C.A.; Knuth, D.M.; Speller, C.V.; Meot-Ner (Mautner), M.; Sieck, L.W., Filling of Solvent Shells about Ions. Part 3. Isomeric Clusters of (HCN)n(NH3)mH+, J. Mol. Structure (Theochem), 1994, 307, 217, https://doi.org/10.1016/0166-1280(94)80130-4 . [all data]

Speller and Meot-Ner (Mautner), 1985
Speller, C.V.; Meot-Ner (Mautner), M., The Ionic Hydrogen Bond and Ion Solvation. 3. Bonds Involving Cyanides. Correlations with Proton Affinites, J. Phys. Chem., 1985, 81, 24, 5217, https://doi.org/10.1021/j100270a020 . [all data]

Deakyne and Meot-Ner (Mautner), 1985
Deakyne, C.A.; Meot-Ner (Mautner), M., Unconventional Ionic Hydrogen Bonds. 2. NH+ pi. Complexes of Onium Ions with Olefins and Benzene Derivatives, J. Am. Chem. Soc., 1985, 107, 2, 474, https://doi.org/10.1021/ja00288a034 . [all data]

Meot-Ner (Mautner), Sieck, et al., 1996
Meot-Ner (Mautner), M.; Sieck, L.W.; Liebman, J.F.; Scheiner, S., Complexing of the Ammonium Ion by Polyethers. Comparative Complexing Thermochemistry of Ammonium, Hydronium, and Alkali Cations, J. Phys. Chem., 1996, 100, 16, 6445, https://doi.org/10.1021/jp9514943 . [all data]

Meot-Ner (Mautner) and Sieck, 1991
Meot-Ner (Mautner), M.; Sieck, L.W., Proton affinity ladders from variable-temperature equilibrium measurements. 1. A reevaluation of the upper proton affinity range, J. Am. Chem. Soc., 1991, 113, 12, 4448, https://doi.org/10.1021/ja00012a012 . [all data]

Meot-Ner (Mautner) and Sieck, 1990
Meot-Ner (Mautner), M.; Sieck, L.W., Ion Thermochemistry at High Temperatures. 1. Thermochemistry of the Ammonium Ion from Variable - Temperature Equilibrium Measurements. Proton Transfer, Association, and Decomposition Reactions in Ammonia, Isobutene, and t-Butylamine, J. Phys. Chem., 1990, 94, 19, 7730, https://doi.org/10.1021/j100382a076 . [all data]

Bennet and Field, 1972
Bennet, S.L.; Field, F.H., Reversible Reactions of Gaseous Ions. VI. The NH3 - CH4, H2S - CH4 and CF4 - CH4 Systems at Low Temperatures, J. Am. Chem. Soc., 1972, 94, 18, 6305, https://doi.org/10.1021/ja00773a009 . [all data]

Meot-Ner (Mautner) and Sieck, 1985
Meot-Ner (Mautner), M.; Sieck, L.W., The Ionic Hydrogen Bond and Ion Solvation. 4. SH+ O and NH+ S Bonds. Correlations with Proton Affinity. Mutual Effects of Weak and Strong Ligands in Mixed Clusters, J. Phys. Chem., 1985, 89, 24, 5222, https://doi.org/10.1021/j100270a021 . [all data]

Tzeng, Wei, et al., 1991
Tzeng, W.B.; Wei, S.; Castleman, A.W., Stability, Structure and Binding - Energies of Solvated Cluster Ions - Ammonia Acetonitrile and Ammonia Acetaldehyde Systems, J. Phys. Chem., 1991, 95, 15, 5757, https://doi.org/10.1021/j100168a011 . [all data]

Notes

Go To: Top, Reaction thermochemistry data, References