NH4+
- Formula: H4N+
- Molecular weight: 18.0379
- IUPAC Standard InChI:
- InChI=1S/H3N/h1H3/p+1
- Download the identifier in a file.
- IUPAC Standard InChIKey: QGZKDVFQNNGYKY-UHFFFAOYSA-O
- CAS Registry Number: 14798-03-9
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Reaction thermochemistry data: reactions 51 to 93
- Ion clustering data
- Vibrational and/or electronic energy levels
- Options:
Reaction thermochemistry data
Go To: Top, 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. 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
By formula: (H4N+ 3H3N) + H3N = (H4N+
4H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 51. ± 4. | kJ/mol | AVG | N/A | Average of 5 out of 10 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 118. ± 8. | J/mol*K | AVG | N/A | Average of 3 out of 7 values; Individual data points |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
14. | 296. | FA | Fehsenfeld and Ferguson, 1973 | gas phase |
By formula: (H4N+ 2H3N) + H3N = (H4N+
3H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 50. ± 20. | kJ/mol | AVG | N/A | Average of 6 out of 9 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 105. ± 5. | J/mol*K | AVG | N/A | Average of 4 out of 7 values; Individual data points |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
27. | 296. | FA | Fehsenfeld and Ferguson, 1973 | gas phase |
27. | 296. | SAMS | Puckett and Teague, 1971 | gas phase |
By formula: (H4N+ H3N) + H3N = (H4N+
2H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 70. ± 5. | kJ/mol | AVG | N/A | Average of 5 out of 8 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 100. | J/mol*K | HPMS | Tang and Castleman, 1975 | gas phase |
![]() | 99.2 | J/mol*K | PHPMS | Arshadi and Futrell, 1974 | gas phase |
![]() | 104. | J/mol*K | DT | Long and Franklin, 1973 | gas phase |
![]() | 112. | J/mol*K | PHPMS | Searles and Kebarle, 1968 | gas phase |
![]() | 95.8 | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase; typographical error in «DELTA»rH |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
41. | 296. | FA | Fehsenfeld and Ferguson, 1973 | gas phase; DG> |
42.3 | 296. | SAMS | Puckett and Teague, 1971 | gas phase |
23. | 400. | HPMS | Wincel, 1972 | gas phase |
By formula: H4N+ + H3N = (H4N+ H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 107. ± 6. | kJ/mol | AVG | N/A | Average of 4 out of 9 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 111. ± 10. | J/mol*K | AVG | N/A | Average of 4 out of 6 values; Individual data points |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
26. | 400. | HPMS | Wincel, 1972 | gas phase |
By formula: (H4N+ H2O) + H2O = (H4N+
2H2O)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 72.8 | kJ/mol | PHPMS | Meot-Ner (Mautner) and Speller, 1986 | gas phase; «DELTA»rH?, Entropy change is questionable, appear out of line |
![]() | 57.3 | kJ/mol | PHPMS | Meot-Ner (Mautner), 1984 | gas phase; Entropy change calculated or estimated; «DELTA»rH of 51.9 kJ/mol from plot is too small |
![]() | 61.5 | kJ/mol | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 120. | J/mol*K | PHPMS | Meot-Ner (Mautner) and Speller, 1986 | gas phase; «DELTA»rH?, Entropy change is questionable, appear out of line |
![]() | 92.0 | J/mol*K | N/A | Meot-Ner (Mautner), 1984 | gas phase; Entropy change calculated or estimated; «DELTA»rH of 51.9 kJ/mol from plot is too small |
![]() | 91.6 | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 37. | kJ/mol | HPMS | Banic and Iribarne, 1985 | gas phase; electric fields |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
19. | 414. | PHPMS | Meot-Ner (Mautner), 1984 | gas phase; Entropy change calculated or estimated; «DELTA»rH of 51.9 kJ/mol from plot is too small |
By formula: (H4N+ 4H3N) + H3N = (H4N+
5H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 29. | kJ/mol | PHPMS | Arshadi and Futrell, 1974 | gas phase |
![]() | 31. | kJ/mol | PHPMS | Searles and Kebarle, 1968 | gas phase |
![]() | 30. | kJ/mol | MKER | Wei, Tzeng, et al., 1990 | gas phase; from graph |
![]() | 12. | kJ/mol | TPEPICO | Kamke, Herrmann, et al., 1988 | gas phase |
![]() | 40. | kJ/mol | DT | Long and Franklin, 1973 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 90.0 | J/mol*K | PHPMS | Arshadi and Futrell, 1974 | gas phase |
![]() | 100. | J/mol*K | PHPMS | Searles and Kebarle, 1968 | gas phase |
![]() | 130. | J/mol*K | DT | Long and Franklin, 1973 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 2. | kJ/mol | HPMS | Hogg, Haynes, et al., 1966 | gas phase |
By formula: (H4N+ 2H2O) + H2O = (H4N+
3H2O)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 57.3 | kJ/mol | PHPMS | Meot-Ner (Mautner) and Speller, 1986 | gas phase |
![]() | 56.1 | kJ/mol | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
![]() | 51.0 | kJ/mol | PHPMS | Meot-Ner (Mautner), 1984 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 104. | J/mol*K | PHPMS | Meot-Ner (Mautner) and Speller, 1986 | gas phase |
![]() | 105. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
![]() | 88.7 | J/mol*K | PHPMS | Meot-Ner (Mautner), 1984 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 27. | kJ/mol | HPMS | Banic and Iribarne, 1985 | gas phase; electric fields |
By formula: H4N+ + H2O = (H4N+ H2O)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 86.2 | kJ/mol | PHPMS | Meot-Ner (Mautner) and Speller, 1986 | gas phase |
![]() | 83.3 | kJ/mol | PHPMS | Meot-Ner (Mautner), 1984 | gas phase |
![]() | 72.4 | kJ/mol | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 103. | J/mol*K | PHPMS | Meot-Ner (Mautner) and Speller, 1986 | gas phase |
![]() | 96.7 | J/mol*K | PHPMS | Meot-Ner (Mautner), 1984 | gas phase |
![]() | 82.4 | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
By formula: (H4N+ 3CHN
H3N) + CHN = (H4N+
4CHN
H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 36. | kJ/mol | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated, T = 392 in paper is error |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 84. | J/mol*K | N/A | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated, T = 392 in paper is error |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
11. | 292. | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated, T = 392 in paper is error |
By formula: (H4N+ 3H2O) + H2O = (H4N+
4H2O)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 45.2 | kJ/mol | PHPMS | Meot-Ner (Mautner), 1984 | gas phase |
![]() | 51.0 | kJ/mol | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 96.2 | J/mol*K | PHPMS | Meot-Ner (Mautner), 1984 | gas phase |
![]() | 114. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 21. | kJ/mol | HPMS | Banic and Iribarne, 1985 | gas phase; electric fields |
By formula: H4N+ + C2N2 = (H4N+ C2N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 43.5 | kJ/mol | PHPMS | Speller and Meot-Ner (Mautner), 1985 | gas phase; Entropy change calculated or estimated, DG<, «DELTA»rH< |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 96. | J/mol*K | N/A | Speller and Meot-Ner (Mautner), 1985 | gas phase; Entropy change calculated or estimated, DG<, «DELTA»rH< |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
13. | 315. | PHPMS | Speller and Meot-Ner (Mautner), 1985 | gas phase; Entropy change calculated or estimated, DG<, «DELTA»rH< |
By formula: H4N+ + C6H12 = (H4N+ C6H12)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 40. | kJ/mol | PHPMS | Deakyne and Meot-Ner (Mautner), 1985 | gas phase; Entropy change calculated or estimated, DG<, «DELTA»rH< |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 84. | J/mol*K | N/A | Deakyne and Meot-Ner (Mautner), 1985 | gas phase; Entropy change calculated or estimated, DG<, «DELTA»rH< |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
12. | 317. | PHPMS | Deakyne and Meot-Ner (Mautner), 1985 | gas phase; Entropy change calculated or estimated, DG<, «DELTA»rH< |
By formula: (H4N+ H3N
2CHN) + H3N = (H4N+
2H3N
2CHN)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 54.0 | kJ/mol | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 84. | J/mol*K | N/A | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
28. | 315. | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated |
By formula: (H4N+ CHN
2H3N) + CHN = (H4N+
2CHN
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 46.9 | kJ/mol | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 84. | J/mol*K | N/A | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
21. | 315. | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated |
By formula: (H4N+ CHN) + H3N = (H4N+
H3N
CHN)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 78.7 | kJ/mol | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 92. | J/mol*K | N/A | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
39. | 429. | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated |
By formula: (H4N+ 4C3H6O) + C3H6O = (H4N+
5C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 42.3 | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; Entropy change calculated or estimated |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 100. | J/mol*K | N/A | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; Entropy change calculated or estimated |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
19. | 215. | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; Entropy change calculated or estimated |
By formula: H4N+ + C4H8 = (H4N+ C4H8)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 146. | kJ/mol | PHPMS | Meot-Ner (Mautner) and Sieck, 1991 | gas phase; condensation |
![]() | 146. | kJ/mol | PHPMS | Meot-Ner (Mautner) and Sieck, 1990 | gas phase; forms t-C4H9NH3+ |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 155. | J/mol*K | PHPMS | Meot-Ner (Mautner) and Sieck, 1991 | gas phase; condensation |
![]() | 164. | J/mol*K | PHPMS | Meot-Ner (Mautner) and Sieck, 1990 | gas phase; forms t-C4H9NH3+ |
By formula: H4N+ + C6H4F2 = (H4N+ C6H4F2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 54. | kJ/mol | PHPMS | Deakyne and Meot-Ner (Mautner), 1985 | gas phase; Entropy change calculated or estimated |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 84. | J/mol*K | N/A | Deakyne and Meot-Ner (Mautner), 1985 | gas phase; Entropy change calculated or estimated |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
21. | 395. | PHPMS | Deakyne and Meot-Ner (Mautner), 1985 | gas phase; Entropy change calculated or estimated |
By formula: H4N+ + C2H4 = (H4N+ C2H4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 42. | kJ/mol | PHPMS | Deakyne and Meot-Ner (Mautner), 1985 | gas phase; Entropy change calculated or estimated |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 84. | J/mol*K | N/A | Deakyne and Meot-Ner (Mautner), 1985 | gas phase; Entropy change calculated or estimated |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
15. | 294. | PHPMS | Deakyne and Meot-Ner (Mautner), 1985 | gas phase; Entropy change calculated or estimated |
By formula: (H4N+ 4H2O) + H2O = (H4N+
5H2O)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 44.4 | kJ/mol | PHPMS | Meot-Ner (Mautner), 1984 | gas phase |
![]() | 41. | kJ/mol | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 113. | J/mol*K | PHPMS | Meot-Ner (Mautner), 1984 | gas phase |
![]() | 93.7 | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
By formula: (H4N+ 5H3N) + H3N = (H4N+
6H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 27. | kJ/mol | PHPMS | Arshadi and Futrell, 1974 | gas phase |
![]() | 30. | kJ/mol | MKER | Wei, Tzeng, et al., 1990 | gas phase; from graph |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 91.6 | J/mol*K | PHPMS | Arshadi and Futrell, 1974 | gas phase |
By formula: (H4N+ 5H2O) + H2O = (H4N+
6H2O)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 38. | kJ/mol | PHPMS | Meot-Ner (Mautner), 1984 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 92. | J/mol*K | PHPMS | Meot-Ner (Mautner), 1984 | gas phase |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
13. | 266. | PHPMS | Meot-Ner (Mautner), 1984 | gas phase |
By formula: (H4N+ 6H2O) + H2O = (H4N+
7H2O)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 35. | kJ/mol | PHPMS | Meot-Ner (Mautner), 1984 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 92. | J/mol*K | PHPMS | Meot-Ner (Mautner), 1984 | gas phase |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
12. | 254. | PHPMS | Meot-Ner (Mautner), 1984 | gas phase |
By formula: H4N+ + CHN = (H4N+ CHN)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 91.6 | kJ/mol | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase |
![]() | 85.8 | kJ/mol | PHPMS | Speller and Meot-Ner (Mautner), 1985 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 97.9 | J/mol*K | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase |
![]() | 84.5 | J/mol*K | PHPMS | Speller and Meot-Ner (Mautner), 1985 | gas phase |
By formula: (H4N+ 2H3N) + CHN = (H4N+
CHN
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 56.1 | kJ/mol | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 76.6 | J/mol*K | N/A | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated |
By formula: (H4N+ H3N
2H2O) + H3N = (H4N+
2H3N
2H2O)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 65.7 | kJ/mol | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 142. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
By formula: (H4N+ H2O
2H3N) + H2O = (H4N+
2H2O
2H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 49.0 | kJ/mol | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 116. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
By formula: (H4N+ 2H3N
H2O) + H3N = (H4N+
3H3N
H2O)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 62.8 | kJ/mol | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 144. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
By formula: (H4N+ 2H2O
H3N) + H2O = (H4N+
3H2O
H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 51.0 | kJ/mol | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 119. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
By formula: (H4N+ H3N
H2O) + H3N = (H4N+
2H3N
H2O)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 71.5 | kJ/mol | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 133. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
By formula: (H4N+ H2O
H3N) + H2O = (H4N+
2H2O
H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 53.1 | kJ/mol | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 105. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
By formula: (H4N+ 2H3N) + H2O = (H4N+
H2O
2H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 51.9 | kJ/mol | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 103. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
By formula: (H4N+ 2H2O) + H3N = (H4N+
H3N
2H2O)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 76.1 | kJ/mol | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 127. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
By formula: (H4N+ 3H3N) + H2O = (H4N+
H2O
3H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 49.0 | kJ/mol | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 117. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
By formula: (H4N+ 3H2O) + H3N = (H4N+
H3N
3H2O)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 72.4 | kJ/mol | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 147. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
By formula: (H4N+ 2H2O
O2S) + H2O = (H4N+
3H2O
O2S)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 22. | kJ/mol | HPMS | Banic and Iribarne, 1985 | gas phase; From thermochemical cycle,switching reaction, electric fields |
By formula: (H4N+ H3N) + H2O = (H4N+
H2O
H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 54.0 | kJ/mol | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 84.9 | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
By formula: (H4N+ H2O
O2S) + H2O = (H4N+
2H2O
O2S)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 31. | kJ/mol | HPMS | Banic and Iribarne, 1985 | gas phase; From thermochemical cycle,switching reaction, electric fields |
By formula: (H4N+ H2O) + H3N = (H4N+
H3N
H2O)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 77.0 | kJ/mol | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 96.2 | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase |
By formula: (H4N+ C4H10O2) + H3N = (H4N+
H3N
C4H10O2)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 58.6 | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 81.2 | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase |
By formula: H4N+ + C4H10O2 = (H4N+ C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 160. ± 10. | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; possible ether decomposition |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 150. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; possible ether decomposition |
By formula: H4N+ + CH4 = (H4N+ CH4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 15. | kJ/mol | HPMS | Bennet and Field, 1972 | gas phase; Entropy change is questionable |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 64.9 | J/mol*K | HPMS | Bennet and Field, 1972 | gas phase; Entropy change is questionable |
By formula: H4N+ + H2S = (H4N+ H2S)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 47.7 | kJ/mol | PHPMS | Meot-Ner (Mautner) and Sieck, 1985 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 69.9 | J/mol*K | PHPMS | Meot-Ner (Mautner) and Sieck, 1985 | gas phase |
By formula: (H4N+ 2CHN
H3N) + CHN = (H4N+
3CHN
H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 53.6 | kJ/mol | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 101. | J/mol*K | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase |
By formula: (H4N+ CHN
H3N) + CHN = (H4N+
2CHN
H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 51.0 | kJ/mol | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 81.2 | J/mol*K | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase |
By formula: (H4N+ 2H3N
C2H3N) + H3N = (H4N+
3H3N
C2H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 56.9 | kJ/mol | MKER | Tzeng, Wei, et al., 1991 | gas phase; from graph |
By formula: (H4N+ 3H3N
C2H3N) + H3N = (H4N+
4H3N
C2H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 31. | kJ/mol | MKER | Tzeng, Wei, et al., 1991 | gas phase; from graph |
By formula: (H4N+ 4H3N
C2H3N) + H3N = (H4N+
5H3N
C2H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 29. | kJ/mol | MKER | Tzeng, Wei, et al., 1991 | gas phase; from graph |
By formula: (H4N+ 5H3N
C2H3N) + H3N = (H4N+
6H3N
C2H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 25. | kJ/mol | MKER | Tzeng, Wei, et al., 1991 | gas phase; from graph |
By formula: (H4N+ 6H3N
C2H3N) + H3N = (H4N+
7H3N
C2H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 23. | kJ/mol | MKER | Tzeng, Wei, et al., 1991 | gas 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
- Symbols used in this document:
T Temperature rG°
Free energy of reaction at standard conditions rH°
Enthalpy of reaction at standard conditions rS°
Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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