Ammonia
- Formula: H3N
- Molecular weight: 17.0305
- IUPAC Standard InChIKey: QGZKDVFQNNGYKY-UHFFFAOYSA-N
- CAS Registry Number: 7664-41-7
- 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. - Isotopologues:
- Other names: Ammonia gas; Nitro-Sil; Spirit of Hartshorn; NH3; Ammonia, anhydrous; Anhydrous ammonia; Aromatic Ammonia, Vaporole
- 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 100, reactions 101 to 146
- Options:
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- NIST / TRC Web Thermo Tables, "lite" edition (thermophysical and thermochemical data)
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Gas phase thermochemistry data
Go To: Top, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, Gas Chromatography, Site Links, NIST Free Links, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | -45.94 ± 0.35 | kJ/mol | Review | Cox, Wagman, et al., 1984 | CODATA Review value |
![]() | -45.90 | kJ/mol | Review | Chase, 1998 | Data last reviewed in June, 1977 |
Quantity | Value | Units | Method | Reference | Comment |
S°gas,1 bar | 192.77 ± 0.05 | J/mol*K | Review | Cox, Wagman, et al., 1984 | CODATA Review value |
S°gas,1 bar | 192.77 | J/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1977 |
Gas Phase Heat Capacity (Shomate Equation)
Cp° = A + B*t + C*t2 + D*t3 +
E/t2
H° − H°298.15= A*t + B*t2/2 +
C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 −
E/(2*t2) + G
Cp = heat capacity (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*K)
t = temperature (K) / 1000.
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Temperature (K) | 298. - 1400. | 1400. - 6000. |
---|---|---|
A | 19.99563 | 52.02427 |
B | 49.77119 | 18.48801 |
C | -15.37599 | -3.765128 |
D | 1.921168 | 0.248541 |
E | 0.189174 | -12.45799 |
F | -53.30667 | -85.53895 |
G | 203.8591 | 223.8022 |
H | -45.89806 | -45.89806 |
Reference | Chase, 1998 | Chase, 1998 |
Comment | Data last reviewed in June, 1977 | Data last reviewed in June, 1977 |
Phase change data
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, Gas Chromatography, Site Links, NIST Free Links, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 194.95 | K | N/A | Timmermans, 1921 | Uncertainty assigned by TRC = 0.3 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ptriple | 0.06060 | bar | N/A | Fonseca and Lobo, 1989 | Uncertainty assigned by TRC = 0.00005 bar; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 405.4 | K | N/A | Brunner, 1988 | Uncertainty assigned by TRC = 0.1 K; TRC |
Tc | 405.6 | K | N/A | Hentze, 1977 | Uncertainty assigned by TRC = 5. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 113.00 | bar | N/A | Brunner, 1988 | Uncertainty assigned by TRC = 0.05 bar; TRC |
Enthalpy of vaporization
![]() |
Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
22.7 | 308. | N/A | Zander and Thomas, 1979 | Based on data from 293. - 392. K.; AC |
23.5 | 239. | N/A | Overstreet and Giauque, 1937 | Based on data from 199. - 241. K.; AC |
23.4 | 239. | C | Overstreet and Giauque, 1937 | AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
164.0 - 239.6 | 3.18757 | 506.713 | -80.78 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
239.6 - 371.5 | 4.86886 | 1113.928 | -10.409 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of sublimation
![]() |
Temperature (K) | Reference | Comment |
---|---|---|---|
31.2 | 177. - 195. | Overstreet and Giauque, 1937 | AC |
Reaction thermochemistry data
Go To: Top, Gas phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, Gas Chromatography, Site Links, NIST Free Links, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess
RCD - Robert C. Dunbar
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Reactions 1 to 50
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; M |
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; M |
27. | 296. | SAMS | Puckett and Teague, 1971 | gas phase; M |
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; M |
![]() | 99.2 | J/mol*K | PHPMS | Arshadi and Futrell, 1974 | gas phase; M |
![]() | 104. | J/mol*K | DT | Long and Franklin, 1973 | gas phase; M |
![]() | 112. | J/mol*K | PHPMS | Searles and Kebarle, 1968 | gas phase; M |
![]() | 95.8 | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase; typographical error in «DELTA»rH; M |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
41. | 296. | FA | Fehsenfeld and Ferguson, 1973 | gas phase; DG>; M |
42.3 | 296. | SAMS | Puckett and Teague, 1971 | gas phase; M |
23. | 400. | HPMS | Wincel, 1972 | gas phase; M |
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; M |
By formula: Cl- + H3N = (Cl- H3N)
Bond type: Hydrogen bond (negative ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | <30.5 ± 1.7 | kJ/mol | N/A | Tschurl and Boesl, 2008 | gas phase; B |
![]() | 34.3 ± 0.42 | kJ/mol | TDAs | Evans, Keesee, et al., 1987 | gas phase; B,M |
![]() | 37. ± 5.0 | kJ/mol | N/A | Markovich, Chesnovsky, et al., 1993 | gas phase; B |
![]() | 44. ± 17. | kJ/mol | IMRE | Larson and McMahon, 1984 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 64.4 | J/mol*K | HPMS | Evans, Keesee, et al., 1987 | gas phase; M |
![]() | 83.3 | J/mol*K | N/A | Larson and McMahon, 1984 | gas phase; switching reaction(Cl-)CH3F, Entropy change calculated or estimated; Larson and McMahon, 1984, 2; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 15.1 ± 0.84 | kJ/mol | TDAs | Evans, Keesee, et al., 1987 | gas phase; B |
![]() | 19. ± 8.4 | kJ/mol | IMRE | Larson and McMahon, 1984 | gas phase; B,M |
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; M |
![]() | 31. | kJ/mol | PHPMS | Searles and Kebarle, 1968 | gas phase; M |
![]() | 30. | kJ/mol | MKER | Wei, Tzeng, et al., 1990 | gas phase; from graph; M |
![]() | 12. | kJ/mol | TPEPICO | Kamke, Herrmann, et al., 1988 | gas phase; M |
![]() | 40. | kJ/mol | DT | Long and Franklin, 1973 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 90.0 | J/mol*K | PHPMS | Arshadi and Futrell, 1974 | gas phase; M |
![]() | 100. | J/mol*K | PHPMS | Searles and Kebarle, 1968 | gas phase; M |
![]() | 130. | J/mol*K | DT | Long and Franklin, 1973 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 2. | kJ/mol | HPMS | Hogg, Haynes, et al., 1966 | gas phase; M |
By formula: Li+ + H3N = (Li+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 164. | kJ/mol | ICR | Woodin and Beauchamp, 1978 | gas phase; switching reaction(Li+)H2O, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M |
![]() | 161. | kJ/mol | ICR | Staley and Beauchamp, 1975 | gas phase; switching reaction(Li+)H2O, from graph; Dzidic and Kebarle, 1970 extrapolated; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 96. | J/mol*K | N/A | Woodin and Beauchamp, 1978 | gas phase; switching reaction(Li+)H2O, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 134. | kJ/mol | ICR | Woodin and Beauchamp, 1978 | gas phase; switching reaction(Li+)H2O, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M |
By formula: (Na+ H3N) + H3N = (Na+
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 93. ± 5. | kJ/mol | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 105. | J/mol*K | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
H2N- + =
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 1688.0 ± 1.2 | kJ/mol | D-EA | Wickham-Jones, Ervin, et al., 1989 | gas phase; B |
![]() | 1688.5 ± 3.3 | kJ/mol | G+TS | MacKay, Hemsworth, et al., 1976 | gas phase; B |
![]() | 1683.2 | kJ/mol | N/A | Check, Faust, et al., 2001 | gas phase; HCrO3(t); ; «DELTA»S(EA)=6.6; B |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 1656.8 ± 1.6 | kJ/mol | H-TS | Wickham-Jones, Ervin, et al., 1989 | gas phase; B |
![]() | 1657.3 ± 2.9 | kJ/mol | IMRE | MacKay, Hemsworth, et al., 1976 | gas phase; B |
![]() | 1654.4 | kJ/mol | N/A | Check, Faust, et al., 2001 | gas phase; HCrO3(t); ; «DELTA»S(EA)=6.6; B |
By formula: C4H9+ + H3N = (C4H9+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 196. | kJ/mol | PHPMS | Meot-Ner (Mautner) and Sieck, 1991 | gas phase; forms t-C4H9NH3+; M |
![]() | 190. | kJ/mol | PHPMS | Szulejko and McMahon, 1991 | gas phase; forms t-C4H9NH3+; M |
![]() | 195. | kJ/mol | PHPMS | Meot-Ner (Mautner) and Sieck, 1990 | gas phase; forms t-C4H9NH3+; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 183. | J/mol*K | PHPMS | Meot-Ner (Mautner) and Sieck, 1991 | gas phase; forms t-C4H9NH3+; M |
![]() | 198. | J/mol*K | PHPMS | Szulejko and McMahon, 1991 | gas phase; forms t-C4H9NH3+; M |
![]() | 184. | J/mol*K | PHPMS | Meot-Ner (Mautner) and Sieck, 1990 | gas phase; forms t-C4H9NH3+; M |
By formula: Na+ + H3N = (Na+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 102. ± 5.4 | kJ/mol | CIDC | Amicangelo and Armentrout, 2001 | Anchor NH3=24.41; RCD |
![]() | 102. ± 5.4 | kJ/mol | CIDT | Armentrout and Rodgers, 2000 | RCD |
![]() | 107. ± 0.8 | kJ/mol | HPMS | Hoyau, Norrman, et al., 1999 | RCD |
![]() | 122. | kJ/mol | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 91200. | J/mol*K | HPMS | Hoyau, Norrman, et al., 1999 | RCD |
![]() | 108. | J/mol*K | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
77.8 | 298. | IMRE | McMahon and Ohanessian, 2000 | Anchor alanine=39.89; RCD |
By formula: C3H9Sn+ + H3N = (C3H9Sn+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 154. | kJ/mol | PHPMS | Stone and Splinter, 1984 | gas phase; switching reaction((CH3)3Sn+)CH3OH/NH3, Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 122. | J/mol*K | N/A | Stone and Splinter, 1984 | gas phase; switching reaction((CH3)3Sn+)CH3OH/NH3, Entropy change calculated or estimated; M |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
90.4 | 525. | PHPMS | Stone and Splinter, 1984 | gas phase; switching reaction((CH3)3Sn+)CH3OH/NH3, Entropy change calculated or estimated; M |
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; M |
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; M |
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; M |
By formula: I- + H3N = (I- H3N)
Bond type: Hydrogen bond (negative ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 31.0 ± 1.3 | kJ/mol | TDAs | Evans, Keesee, et al., 1987 | gas phase; B,M |
![]() | 31. ± 4.2 | kJ/mol | TDAs | Caldwell, Masucci, et al., 1989 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 87.4 | J/mol*K | HPMS | Evans, Keesee, et al., 1987 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 5.0 ± 2.5 | kJ/mol | TDAs | Evans, Keesee, et al., 1987 | gas phase; B |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 84. | J/mol*K | N/A | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
28. | 315. | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 84. | J/mol*K | N/A | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
21. | 315. | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 92. | J/mol*K | N/A | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
39. | 429. | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
By formula: Br- + H3N = (Br- H3N)
Bond type: Hydrogen bond (negative ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 32.2 ± 0.42 | kJ/mol | TDAs | Evans, Keesee, et al., 1987 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 79.9 | J/mol*K | HPMS | Evans, Keesee, et al., 1987 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 8.37 ± 0.84 | kJ/mol | TDAs | Evans, Keesee, et al., 1987 | gas phase; B |
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; M |
![]() | 30. | kJ/mol | MKER | Wei, Tzeng, et al., 1990 | gas phase; from graph; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 91.6 | J/mol*K | PHPMS | Arshadi and Futrell, 1974 | gas phase; M |
By formula: K+ + H3N = (K+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 84.1 | kJ/mol | HPMS | Castleman, 1978 | gas phase; M |
![]() | 74.5 | kJ/mol | HPMS | Davidson and Kebarle, 1976 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 96.2 | J/mol*K | HPMS | Castleman, 1978 | gas phase; M |
![]() | 117. | J/mol*K | HPMS | Davidson and Kebarle, 1976 | gas phase; M |
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; M |
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; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 142. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 116. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase; M |
By formula: (C6H15O3+ H3N) + C6H14O3 = (C6H15O3+
C6H14O3
H3N)
Bond type: Hydrogen bonds between protonated and neutral organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 128. | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 213. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 144. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 119. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 133. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 105. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 103. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 127. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 117. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 147. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 84.9 | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 96.2 | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 81.2 | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
By formula: H- + H3N = (H- H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 29.7 | kJ/mol | Est | Snodgrass, Coe, et al., 1995 | gas phase; Stated electron affinity is the Vertical Detachment Energy; B |
![]() | 35. | kJ/mol | PES | Coe, Snodgrass, et al., 1985 | gas phase; «DELTA»rH<; M |
By formula: (Cu+ 2H3N) + H3N = (Cu+
3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 46.9 ± 5.9 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
![]() | 58.6 | kJ/mol | HPMS | Holland and Castleman, 1982 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 99.6 | J/mol*K | HPMS | Holland and Castleman, 1982 | gas phase; M |
By formula: (Cu+ 3H3N) + H3N = (Cu+
4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 41.8 ± 5.9 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
![]() | 53.6 | kJ/mol | HPMS | Holland and Castleman, 1982 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 120. | J/mol*K | HPMS | Holland and Castleman, 1982 | gas phase; M |
By formula: (Pb+ 2H3N) + H3N = (Pb+
3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 54.4 | kJ/mol | HPMS | Guo and Castleman, 1991 | gas phase; «DELTA»rS from graph; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 89.5 | J/mol*K | HPMS | Guo and Castleman, 1991 | gas phase; «DELTA»rS from graph; M |
By formula: (Pb+ 3H3N) + H3N = (Pb+
4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 44.8 | kJ/mol | HPMS | Guo and Castleman, 1991 | gas phase; «DELTA»rS from graph; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 102. | J/mol*K | HPMS | Guo and Castleman, 1991 | gas phase; «DELTA»rS from graph; M |
By formula: (Pb+ H3N) + H3N = (Pb+
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 80.3 | kJ/mol | HPMS | Guo and Castleman, 1991 | gas phase; «DELTA»rS from graph; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 113. | J/mol*K | HPMS | Guo and Castleman, 1991 | gas phase; «DELTA»rS from graph; M |
By formula: C2H8N+ + H3N = (C2H8N+ H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 86.2 | kJ/mol | PHPMS | Yamdagni and Kebarle, 1974 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 118. | J/mol*K | PHPMS | Yamdagni and Kebarle, 1974 | gas phase; M |
By formula: C6H15O3+ + H3N = (C6H15O3+ H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 127. | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 117. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
By formula: CH6N+ + H3N = (CH6N+ H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 89.5 | kJ/mol | PHPMS | Yamdagni and Kebarle, 1974 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 110. | J/mol*K | PHPMS | Yamdagni and Kebarle, 1974 | gas phase; M |
By formula: Pb+ + H3N = (Pb+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 118. | kJ/mol | HPMS | Guo and Castleman, 1991 | gas phase; «DELTA»rS from graph; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 98.7 | J/mol*K | HPMS | Guo and Castleman, 1991 | gas phase; «DELTA»rS from graph; M |
By formula: (H- H3N) + H3N = (H-
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 33.9 | kJ/mol | Est | Snodgrass, Coe, et al., 1995 | gas phase; Affinity: shift in apparent EA from lesser-solvated ion. Ignores any neutral-neutral bond.; B |
By formula: (H2N- H3N) + H3N = (H2N-
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 46.44 | kJ/mol | Est | Snodgrass, Coe, et al., 1989 | gas phase; Affinity: shift in apparent EA from lesser-solvated ion. Ignores any neutral-neutral bond.; B |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 101. | J/mol*K | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 81.2 | J/mol*K | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase; M |
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; M |
Henry's Law data
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, Gas Chromatography, Site Links, NIST Free Links, 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: Rolf Sander
Henry's Law constant (water solution)
kH(T) = k°H exp(d(ln(kH))/d(1/T) ((1/T) - 1/(298.15 K)))
k°H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(kH))/d(1/T) = Temperature dependence constant (K)
k°H (mol/(kg*bar)) | d(ln(kH))/d(1/T) (K) | Method | Reference | Comment |
---|---|---|---|---|
27. | 2100. | Q | N/A | Only the tabulated data between T = 273. K and T = 303. K from missing citation was used to derive kH and -«DELTA» kH/R. Above T = 303. K the tabulated data could not be parameterized by equation (reference missing) very well. The partial pressure of water vapor (needed to convert some Henry's law constants) was calculated using the formula given by missing citation. The quantities A and «alpha» from missing citation were assumed to be identical. |
61. | 4200. | M | N/A | |
56. | 4100. | M | N/A | |
56. | 4200. | T | N/A | |
58. | 4100. | T | N/A | |
58. | 4100. | Q | N/A | missing citation refer to several references in their list of Henry's law constants but they don't assign them to specific species. |
78. | M | N/A | ||
62. | 4085.? | N/A | N/A | |
53. | Q | N/A | missing citation gives missing citation as the source for the data. However, no data was found in that reference. | |
59. | 4400. | X | N/A | |
76. | 3400. | M | N/A | |
61. | 4200. | L | N/A | |
10. | 1500. | L | N/A | |
57. | 4100. | X | N/A | The value is taken from the compilation of solubilities by W. Asman (unpublished). |
59. | 4100. | X | N/A | The value is taken from the compilation of solubilities by W. Asman (unpublished). |
62. | X | N/A | Value given here as quoted by missing citation. |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, Gas Chromatography, Site Links, NIST Free Links, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias
Data compiled as indicated in comments:
B - John E. Bartmess
LL - Sharon G. Lias and Joel F. Liebman
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
View reactions leading to H3N+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 10.070 ± 0.020 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 853.6 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 819.0 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
H+ | 18.57 | H2N | PI | Qi, Sheng, et al., 1995 | LL |
HN+ | 28. ± 1.5 | H2/2H | EI | Muller and Schulz, 1990 | LL |
HN+ | 16.9 ± 0.1 | H2 | EI | Locht, Servais, et al., 1988 | LL |
HN+ | 17.2 | H2 | EI | Morrison and Traeger, 1973 | LLK |
NH+ | 17.1 ± 0.1 | H2 | EI | Reed and Snedden, 1959 | RDSH |
H2N+ | 15.75 | H | PI | Qi, Sheng, et al., 1995 | LL |
H2N+ | 15.60 ± 0.02 | H | PIPECO | Ruede, Troxler, et al., 1993 | LL |
H2N+ | 15.75 | H | PI | Locht, Hottmann, et al., 1992 | LL |
H2N+ | 15.76 ± 0.05 | H | PI | Locht, Servais, et al., 1988 | LL |
H2N+ | 15.76 ± 0.05 | H | EI | Locht, Servais, et al., 1988 | LL |
H2N+ | 15.5 | H | PIPECO | Powis, 1981 | LLK |
H2N+ | 15.87 ± 0.13 | H | DER | Powis, 1981 | LLK |
H2N+ | 15.768 ± 0.004 | H | PI | McCulloh, 1976 | LLK |
H2N+ | 15.0 | H | EI | Morrison and Traeger, 1973 | LLK |
NH2+ | 15.73 ± 0.02 | H | PI | Dibeler, Walker, et al., 1966 | RDSH |
NH2+ | 16.0 ± 0.1 | H | EI | Foner and Hudson, 1958 | RDSH |
N+ | <=22.5 | H2+H | EI | Morrison and Traeger, 1973 | LLK |
N+ | 22.6 ± 0.1 | H2+H | EI | Reed and Snedden, 1959 | RDSH |
De-protonation reactions
H2N- + =
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 1688.0 ± 1.2 | kJ/mol | D-EA | Wickham-Jones, Ervin, et al., 1989 | gas phase; B |
![]() | 1688.5 ± 3.3 | kJ/mol | G+TS | MacKay, Hemsworth, et al., 1976 | gas phase; B |
![]() | 1683.2 | kJ/mol | N/A | Check, Faust, et al., 2001 | gas phase; HCrO3(t); ; «DELTA»S(EA)=6.6; B |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 1656.8 ± 1.6 | kJ/mol | H-TS | Wickham-Jones, Ervin, et al., 1989 | gas phase; B |
![]() | 1657.3 ± 2.9 | kJ/mol | IMRE | MacKay, Hemsworth, et al., 1976 | gas phase; B |
![]() | 1654.4 | kJ/mol | N/A | Check, Faust, et al., 2001 | gas phase; HCrO3(t); ; «DELTA»S(EA)=6.6; B |
Ion clustering data
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, Gas Chromatography, Site Links, NIST Free Links, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess
RCD - Robert C. Dunbar
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.
Clustering reactions
By formula: (Ag+ H3N) + H3N = (Ag+
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 154. | kJ/mol | HPMS | Holland and Castleman, 1982 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 137. | J/mol*K | HPMS | Holland and Castleman, 1982 | gas phase; M |
By formula: (Ag+ 2H3N) + H3N = (Ag+
3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 61.1 | kJ/mol | HPMS | Holland and Castleman, 1982 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 103. | J/mol*K | HPMS | Holland and Castleman, 1982 | gas phase; M |
By formula: (Ag+ 3H3N) + H3N = (Ag+
4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 54.4 | kJ/mol | HPMS | Holland and Castleman, 1982 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 126. | J/mol*K | HPMS | Holland and Castleman, 1982 | gas phase; M |
By formula: (Ag+ 4H3N) + H3N = (Ag+
5H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 53.6 | kJ/mol | HPMS | Holland and Castleman, 1982 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 143. | J/mol*K | HPMS | Holland and Castleman, 1982 | gas phase; M |
By formula: Bi+ + H3N = (Bi+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 149. | kJ/mol | HPMS | Castleman, 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 149. | J/mol*K | HPMS | Castleman, 1978 | gas phase; M |
By formula: (Bi+ H3N) + H3N = (Bi+
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 97.1 | kJ/mol | HPMS | Castleman, 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 138. | J/mol*K | HPMS | Castleman, 1978 | gas phase; M |
By formula: (Bi+ 2H3N) + H3N = (Bi+
3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 56.1 | kJ/mol | HPMS | Castleman, 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 109. | J/mol*K | HPMS | Castleman, 1978 | gas phase; M |
By formula: Br- + H3N = (Br- H3N)
Bond type: Hydrogen bond (negative ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 32.2 ± 0.42 | kJ/mol | TDAs | Evans, Keesee, et al., 1987 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 79.9 | J/mol*K | HPMS | Evans, Keesee, et al., 1987 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 8.37 ± 0.84 | kJ/mol | TDAs | Evans, Keesee, et al., 1987 | gas phase; B |
By formula: CH6N+ + H3N = (CH6N+ H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 89.5 | kJ/mol | PHPMS | Yamdagni and Kebarle, 1974 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 110. | J/mol*K | PHPMS | Yamdagni and Kebarle, 1974 | gas phase; M |
By formula: C2H8N+ + H3N = (C2H8N+ H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 86.2 | kJ/mol | PHPMS | Yamdagni and Kebarle, 1974 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 118. | J/mol*K | PHPMS | Yamdagni and Kebarle, 1974 | gas phase; M |
By formula: C3H9Si+ + H3N = (C3H9Si+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 195. | kJ/mol | PHPMS | Li and Stone, 1990 | gas phase; switching reaction((CH3)3Si+)CH3COOC2H5; Wojtyniak and Stone, 1986; M |
By formula: C3H9Sn+ + H3N = (C3H9Sn+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 154. | kJ/mol | PHPMS | Stone and Splinter, 1984 | gas phase; switching reaction((CH3)3Sn+)CH3OH/NH3, Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 122. | J/mol*K | N/A | Stone and Splinter, 1984 | gas phase; switching reaction((CH3)3Sn+)CH3OH/NH3, Entropy change calculated or estimated; M |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
90.4 | 525. | PHPMS | Stone and Splinter, 1984 | gas phase; switching reaction((CH3)3Sn+)CH3OH/NH3, Entropy change calculated or estimated; M |
By formula: C4H9+ + H3N = (C4H9+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 196. | kJ/mol | PHPMS | Meot-Ner (Mautner) and Sieck, 1991 | gas phase; forms t-C4H9NH3+; M |
![]() | 190. | kJ/mol | PHPMS | Szulejko and McMahon, 1991 | gas phase; forms t-C4H9NH3+; M |
![]() | 195. | kJ/mol | PHPMS | Meot-Ner (Mautner) and Sieck, 1990 | gas phase; forms t-C4H9NH3+; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 183. | J/mol*K | PHPMS | Meot-Ner (Mautner) and Sieck, 1991 | gas phase; forms t-C4H9NH3+; M |
![]() | 198. | J/mol*K | PHPMS | Szulejko and McMahon, 1991 | gas phase; forms t-C4H9NH3+; M |
![]() | 184. | J/mol*K | PHPMS | Meot-Ner (Mautner) and Sieck, 1990 | gas phase; forms t-C4H9NH3+; M |
By formula: C5H10NO2+ + H3N = (C5H10NO2+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 86.2 | kJ/mol | PHPMS | Meot-Ner and Field, 1974 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 121. | J/mol*K | PHPMS | Meot-Ner and Field, 1974 | gas phase; M |
By formula: C5H12NO2+ + H3N = (C5H12NO2+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 87.4 | kJ/mol | PHPMS | Meot-Ner and Field, 1974 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 120. | J/mol*K | PHPMS | Meot-Ner and Field, 1974 | gas phase; M |
By formula: C6H15O3+ + H3N = (C6H15O3+ H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 127. | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 117. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
By formula: Cl- + H3N = (Cl- H3N)
Bond type: Hydrogen bond (negative ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | <30.5 ± 1.7 | kJ/mol | N/A | Tschurl and Boesl, 2008 | gas phase; B |
![]() | 34.3 ± 0.42 | kJ/mol | TDAs | Evans, Keesee, et al., 1987 | gas phase; B,M |
![]() | 37. ± 5.0 | kJ/mol | N/A | Markovich, Chesnovsky, et al., 1993 | gas phase; B |
![]() | 44. ± 17. | kJ/mol | IMRE | Larson and McMahon, 1984 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 64.4 | J/mol*K | HPMS | Evans, Keesee, et al., 1987 | gas phase; M |
![]() | 83.3 | J/mol*K | N/A | Larson and McMahon, 1984 | gas phase; switching reaction(Cl-)CH3F, Entropy change calculated or estimated; Larson and McMahon, 1984, 2; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 15.1 ± 0.84 | kJ/mol | TDAs | Evans, Keesee, et al., 1987 | gas phase; B |
![]() | 19. ± 8.4 | kJ/mol | IMRE | Larson and McMahon, 1984 | gas phase; B,M |
By formula: Co+ + H3N = (Co+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 218. ± 15. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
![]() | 246. | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: (Co+ H3N) + H3N = (Co+
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 248. ± 13. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
![]() | 256. | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: (Co+ 2H3N) + H3N = (Co+
3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 64.0 ± 5.9 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: (Co+ 3H3N) + H3N = (Co+
4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 49.0 ± 5.9 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: Cr+ + H3N = (Cr+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 182. ± 10. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
![]() | 156. | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: (Cr+ H3N) + H3N = (Cr+
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 179. ± 9.2 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
![]() | 171. | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: (Cr+ 2H3N) + H3N = (Cr+
3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 54.0 ± 5.9 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: (Cr+ 3H3N) + H3N = (Cr+
4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 30. ± 9.2 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: Cu+ + H3N = (Cu+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 237. ± 14. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: (Cu+ H3N) + H3N = (Cu+
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 246. ± 10. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: (Cu+ 2H3N) + H3N = (Cu+
3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 46.9 ± 5.9 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
![]() | 58.6 | kJ/mol | HPMS | Holland and Castleman, 1982 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 99.6 | J/mol*K | HPMS | Holland and Castleman, 1982 | gas phase; M |
By formula: (Cu+ 3H3N) + H3N = (Cu+
4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 41.8 ± 5.9 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
![]() | 53.6 | kJ/mol | HPMS | Holland and Castleman, 1982 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 120. | J/mol*K | HPMS | Holland and Castleman, 1982 | gas phase; M |
By formula: (Cu+ 4H3N) + H3N = (Cu+
5H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 53.6 | kJ/mol | HPMS | Holland and Castleman, 1982 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 138. | J/mol*K | HPMS | Holland and Castleman, 1982 | gas phase; M |
By formula: F- + H3N = (F- H3N)
Bond type: Hydrogen bond (negative ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 96. | kJ/mol | FA | Spears and Ferguson, 1973 | gas phase; «DELTA»rH>; M |
By formula: Fe+ + H3N = (Fe+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 183. ± 12. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
![]() | 161. | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: (Fe+ H3N) + H3N = (Fe+
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 225. ± 12. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
![]() | 204. | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: (Fe+ 2H3N) + H3N = (Fe+
3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 68. ± 13. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: (Fe+ 3H3N) + H3N = (Fe+
4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 41.8 ± 7.1 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: H- + H3N = (H- H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 29.7 | kJ/mol | Est | Snodgrass, Coe, et al., 1995 | gas phase; Stated electron affinity is the Vertical Detachment Energy; B |
![]() | 35. | kJ/mol | PES | Coe, Snodgrass, et al., 1985 | gas phase; «DELTA»rH<; M |
By formula: (H- H3N) + H3N = (H-
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 33.9 | kJ/mol | Est | Snodgrass, Coe, et al., 1995 | gas phase; Affinity: shift in apparent EA from lesser-solvated ion. Ignores any neutral-neutral bond.; B |
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 50.21 | kJ/mol | N/A | Schwartz, Davico, et al., 2000 | gas phase; Vertical Detachment Energy: 2.54±0.015 eV. Affinity is from difference in EAs; B |
By formula: H2N- + H3N = (H2N- H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 50.21 | kJ/mol | PDis | Snodgrass, Coe, et al., 1989 | gas phase; B |
By formula: (H2N- H3N) + H3N = (H2N-
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 46.44 | kJ/mol | Est | Snodgrass, Coe, et al., 1989 | gas phase; Affinity: shift in apparent EA from lesser-solvated ion. Ignores any neutral-neutral bond.; B |
By formula: H3N+ + H3N = (H3N+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 97. ± 19. | kJ/mol | EI | Stephan, Futrell, et al., 1982 | gas phase; M |
![]() | 75.7 | kJ/mol | PI | Ng, Trevor, et al., 1977 | gas phase; M |
By formula: (H3N+ H3N) + H3N = (H3N+
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 40. ± 20. | kJ/mol | EI | Breen, Tzeng, et al., 1989 | gas phase; M |
![]() | 38. ± 19. | kJ/mol | EI | Stephan, Futrell, et al., 1982 | gas phase; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 92. | J/mol*K | N/A | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
39. | 429. | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 81.2 | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 96.2 | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 127. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 147. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase; M |
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; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 84. | J/mol*K | N/A | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
28. | 315. | PHPMS | Deakyne, Knuth, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
By formula: (H4N+ H3N
C2H3N) + H3N = (H4N+
2H3N
C2H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 64.9 | kJ/mol | MKER | Tzeng, Wei, et al., 1991 | gas phase; from graph; M |
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; M |
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; M |
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; M |
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; M |
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; M |
By formula: (H4N+ 7H3N
C2H3N) + H3N = (H4N+
8H3N
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; M |
By formula: (H4N+ 8H3N
C2H3N) + H3N = (H4N+
9H3N
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; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 133. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 142. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase; M |
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; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 144. | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase; M |
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; M |
![]() | 99.2 | J/mol*K | PHPMS | Arshadi and Futrell, 1974 | gas phase; M |
![]() | 104. | J/mol*K | DT | Long and Franklin, 1973 | gas phase; M |
![]() | 112. | J/mol*K | PHPMS | Searles and Kebarle, 1968 | gas phase; M |
![]() | 95.8 | J/mol*K | PHPMS | Payzant, Cunningham, et al., 1973 | gas phase; typographical error in «DELTA»rH; M |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
41. | 296. | FA | Fehsenfeld and Ferguson, 1973 | gas phase; DG>; M |
42.3 | 296. | SAMS | Puckett and Teague, 1971 | gas phase; M |
23. | 400. | HPMS | Wincel, 1972 | gas phase; M |
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; M |
27. | 296. | SAMS | Puckett and Teague, 1971 | gas phase; M |
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; M |
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; M |
![]() | 31. | kJ/mol | PHPMS | Searles and Kebarle, 1968 | gas phase; M |
![]() | 30. | kJ/mol | MKER | Wei, Tzeng, et al., 1990 | gas phase; from graph; M |
![]() | 12. | kJ/mol | TPEPICO | Kamke, Herrmann, et al., 1988 | gas phase; M |
![]() | 40. | kJ/mol | DT | Long and Franklin, 1973 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 90.0 | J/mol*K | PHPMS | Arshadi and Futrell, 1974 | gas phase; M |
![]() | 100. | J/mol*K | PHPMS | Searles and Kebarle, 1968 | gas phase; M |
![]() | 130. | J/mol*K | DT | Long and Franklin, 1973 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 2. | kJ/mol | HPMS | Hogg, Haynes, et al., 1966 | gas phase; M |
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; M |
![]() | 30. | kJ/mol | MKER | Wei, Tzeng, et al., 1990 | gas phase; from graph; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 91.6 | J/mol*K | PHPMS | Arshadi and Futrell, 1974 | gas phase; M |
By formula: (H4N+ 6H3N) + H3N = (H4N+
7H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 20. | kJ/mol | MKER | Wei, Tzeng, et al., 1990 | gas phase; from graph; M |
By formula: (H4N+ 7H3N) + H3N = (H4N+
8H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 20. | kJ/mol | MKER | Wei, Tzeng, et al., 1990 | gas phase; from graph; M |
By formula: (H4N+ 8H3N) + H3N = (H4N+
9H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 20. | kJ/mol | MKER | Wei, Tzeng, et al., 1990 | gas phase; from graph; M |
By formula: (H4N+ 9H3N) + H3N = (H4N+
10H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 20. | kJ/mol | MKER | Wei, Tzeng, et al., 1990 | gas phase; from graph; M |
By formula: (H4N+ 10H3N) + H3N = (H4N+
11H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 20. | kJ/mol | MKER | Wei, Tzeng, et al., 1990 | gas phase; from graph; M |
By formula: (H4N+ 11H3N) + H3N = (H4N+
12H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 20. | kJ/mol | MKER | Wei, Tzeng, et al., 1990 | gas phase; from graph; M |
By formula: (H4N+ 12H3N) + H3N = (H4N+
13H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 20. | kJ/mol | MKER | Wei, Tzeng, et al., 1990 | gas phase; from graph; M |
By formula: (H4N+ 13H3N) + H3N = (H4N+
14H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 20. | kJ/mol | MKER | Wei, Tzeng, et al., 1990 | gas phase; from graph; M |
By formula: (H4N+ 14H3N) + H3N = (H4N+
15H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 20. | kJ/mol | MKER | Wei, Tzeng, et al., 1990 | gas phase; from graph; M |
By formula: (H4N+ 15H3N) + H3N = (H4N+
16H3N)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 20. | kJ/mol | MKER | Wei, Tzeng, et al., 1990 | gas phase; from graph; M |
By formula: I- + H3N = (I- H3N)
Bond type: Hydrogen bond (negative ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 31.0 ± 1.3 | kJ/mol | TDAs | Evans, Keesee, et al., 1987 | gas phase; B,M |
![]() | 31. ± 4.2 | kJ/mol | TDAs | Caldwell, Masucci, et al., 1989 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 87.4 | J/mol*K | HPMS | Evans, Keesee, et al., 1987 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 5.0 ± 2.5 | kJ/mol | TDAs | Evans, Keesee, et al., 1987 | gas phase; B |
By formula: K+ + H3N = (K+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 84.1 | kJ/mol | HPMS | Castleman, 1978 | gas phase; M |
![]() | 74.5 | kJ/mol | HPMS | Davidson and Kebarle, 1976 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 96.2 | J/mol*K | HPMS | Castleman, 1978 | gas phase; M |
![]() | 117. | J/mol*K | HPMS | Davidson and Kebarle, 1976 | gas phase; M |
By formula: (K+ H3N) + H3N = (K+
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 68.2 | kJ/mol | HPMS | Castleman, 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 95.4 | J/mol*K | HPMS | Castleman, 1978 | gas phase; M |
By formula: (K+ 2H3N) + H3N = (K+
3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 56.5 | kJ/mol | HPMS | Castleman, 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 116. | J/mol*K | HPMS | Castleman, 1978 | gas phase; M |
By formula: (K+ 3H3N) + H3N = (K+
4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 48.5 | kJ/mol | HPMS | Castleman, 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 106. | J/mol*K | HPMS | Castleman, 1978 | gas phase; M |
By formula: Li+ + H3N = (Li+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 164. | kJ/mol | ICR | Woodin and Beauchamp, 1978 | gas phase; switching reaction(Li+)H2O, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M |
![]() | 161. | kJ/mol | ICR | Staley and Beauchamp, 1975 | gas phase; switching reaction(Li+)H2O, from graph; Dzidic and Kebarle, 1970 extrapolated; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 96. | J/mol*K | N/A | Woodin and Beauchamp, 1978 | gas phase; switching reaction(Li+)H2O, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 134. | kJ/mol | ICR | Woodin and Beauchamp, 1978 | gas phase; switching reaction(Li+)H2O, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M |
By formula: (Li+ H3N) + H3N = (Li+
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 138. | kJ/mol | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 124. | J/mol*K | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
By formula: (Li+ 2H3N) + H3N = (Li+
3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 87.9 | kJ/mol | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 106. | J/mol*K | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
By formula: (Li+ 3H3N) + H3N = (Li+
4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 69.0 | kJ/mol | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 136. | J/mol*K | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
By formula: (Li+ 4H3N) + H3N = (Li+
5H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 46.4 | kJ/mol | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 117. | J/mol*K | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
By formula: (Li+ 5H3N) + H3N = (Li+
6H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 39. | kJ/mol | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 106. | J/mol*K | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
By formula: Mg+ + H3N = (Mg+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 154. ± 12. | kJ/mol | CIDT | Andersen, Muntean, et al., 2000 | RCD |
By formula: (Mg+ H3N) + H3N = (Mg+
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 122. ± 6.7 | kJ/mol | CIDT | Andersen, Muntean, et al., 2000 | RCD |
By formula: (Mg+ 2H3N) + H3N = (Mg+
3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 95.4 ± 8.8 | kJ/mol | CIDT | Andersen, Muntean, et al., 2000 | RCD |
By formula: (Mg+ 3H3N) + H3N = (Mg+
4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 44. ± 10. | kJ/mol | CIDT | Andersen, Muntean, et al., 2000 | RCD |
By formula: (Mg+ 4H3N) + H3N = (Mg+
5H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 56. ± 12. | kJ/mol | CIDT | Andersen, Muntean, et al., 2000 | 5th ligand is NH3; RCD |
By formula: Mn+ + H3N = (Mn+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 147. ± 7.9 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
![]() | 154. | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: (Mn+ H3N) + H3N = (Mn+
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 152. ± 12. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
![]() | 143. | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: (Mn+ 2H3N) + H3N = (Mn+
3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 64.0 ± 9.2 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
![]() | 49.4 | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: (Mn+ 3H3N) + H3N = (Mn+
4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 36. ± 5.9 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
+
= H3N2O-
By formula: NO- + H3N = H3N2O-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 43.51 | kJ/mol | N/A | Hendricks, de Clercq, et al., 2002 | gas phase; B |
By formula: Na+ + H3N = (Na+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 102. ± 5.4 | kJ/mol | CIDC | Amicangelo and Armentrout, 2001 | Anchor NH3=24.41; RCD |
![]() | 102. ± 5.4 | kJ/mol | CIDT | Armentrout and Rodgers, 2000 | RCD |
![]() | 107. ± 0.8 | kJ/mol | HPMS | Hoyau, Norrman, et al., 1999 | RCD |
![]() | 122. | kJ/mol | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 91200. | J/mol*K | HPMS | Hoyau, Norrman, et al., 1999 | RCD |
![]() | 108. | J/mol*K | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
77.8 | 298. | IMRE | McMahon and Ohanessian, 2000 | Anchor alanine=39.89; RCD |
By formula: (Na+ H3N) + H3N = (Na+
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 93. ± 5. | kJ/mol | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 105. | J/mol*K | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
By formula: (Na+ 2H3N) + H3N = (Na+
3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 71.5 | kJ/mol | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 100. | J/mol*K | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
By formula: (Na+ 3H3N) + H3N = (Na+
4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 61.5 | kJ/mol | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 121. | J/mol*K | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
By formula: (Na+ 4H3N) + H3N = (Na+
5H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 44.8 | kJ/mol | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 125. | J/mol*K | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
By formula: (Na+ 5H3N) + H3N = (Na+
6H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 41. | kJ/mol | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 124. | J/mol*K | HPMS | Castleman, Holland, et al., 1978 | gas phase; M |
By formula: Ni+ + H3N = (Ni+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 231. ± 16. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
![]() | 214. | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: (Ni+ H3N) + H3N = (Ni+
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 249. ± 13. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
![]() | 231. | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: (Ni+ 2H3N) + H3N = (Ni+
3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 90.0 ± 7.9 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
![]() | 74.5 | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: (Ni+ 3H3N) + H3N = (Ni+
4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 37. ± 5.9 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: Pb+ + H3N = (Pb+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 118. | kJ/mol | HPMS | Guo and Castleman, 1991 | gas phase; «DELTA»rS from graph; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 98.7 | J/mol*K | HPMS | Guo and Castleman, 1991 | gas phase; «DELTA»rS from graph; M |
By formula: (Pb+ H3N) + H3N = (Pb+
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 80.3 | kJ/mol | HPMS | Guo and Castleman, 1991 | gas phase; «DELTA»rS from graph; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 113. | J/mol*K | HPMS | Guo and Castleman, 1991 | gas phase; «DELTA»rS from graph; M |
By formula: (Pb+ 2H3N) + H3N = (Pb+
3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 54.4 | kJ/mol | HPMS | Guo and Castleman, 1991 | gas phase; «DELTA»rS from graph; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 89.5 | J/mol*K | HPMS | Guo and Castleman, 1991 | gas phase; «DELTA»rS from graph; M |
By formula: (Pb+ 3H3N) + H3N = (Pb+
4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 44.8 | kJ/mol | HPMS | Guo and Castleman, 1991 | gas phase; «DELTA»rS from graph; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 102. | J/mol*K | HPMS | Guo and Castleman, 1991 | gas phase; «DELTA»rS from graph; M |
By formula: Rb+ + H3N = (Rb+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 78.2 | kJ/mol | HPMS | Castleman, 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 102. | J/mol*K | HPMS | Castleman, 1978 | gas phase; M |
By formula: (Rb+ H3N) + H3N = (Rb+
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 63.6 | kJ/mol | HPMS | Castleman, 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 98.7 | J/mol*K | HPMS | Castleman, 1978 | gas phase; M |
By formula: (Rb+ 2H3N) + H3N = (Rb+
3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 54.8 | kJ/mol | HPMS | Castleman, 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 105. | J/mol*K | HPMS | Castleman, 1978 | gas phase; M |
By formula: (Rb+ 3H3N) + H3N = (Rb+
4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 47.7 | kJ/mol | HPMS | Castleman, 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 159. | J/mol*K | HPMS | Castleman, 1978 | gas phase; M |
By formula: (Rb+ 4H3N) + H3N = (Rb+
5H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 42.7 | kJ/mol | HPMS | Castleman, 1978 | gas phase; M |
By formula: Ti+ + H3N = (Ti+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 195. ± 7.1 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: (Ti+ H3N) + H3N = (Ti+
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 175. ± 15. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: (Ti+ 2H3N) + H3N = (Ti+
3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 176. ± 15. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: (Ti+ 3H3N) + H3N = (Ti+
4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 156. ± 10. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: V+ + H3N = (V+ H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 190. ± 11. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
![]() | 217. | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: (V+ H3N) + H3N = (V+
2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 164. ± 9.2 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
![]() | 188. | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: (V+ 2H3N) + H3N = (V+
3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 104. ± 11. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
![]() | 94.6 | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: (V+ 3H3N) + H3N = (V+
4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 95. ± 11. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
![]() | 78.2 | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
IR Spectrum
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, Gas Chromatography, Site Links, NIST Free Links, References, Notes
Data compiled by: Coblentz Society, Inc.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Mass spectrum (electron ionization)
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Vibrational and/or electronic energy levels, Gas Chromatography, Site Links, NIST Free Links, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
NIST MS number | 6 |
Vibrational and/or electronic energy levels
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, Site Links, NIST Free Links, 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: Takehiko Shimanouchi
Symmetry: C3
Symmetry Number
= 3
Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
---|---|---|---|---|---|---|---|---|---|---|
Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
a1 | 1 | Sym str | 3337 | A | 3336.2 | symmetric level | ||||
a1 | 1 | Sym str | 3337 | A | 3337.2 | antisymmetric level | ||||
a1 | 2 | Sym deform | 950 | C | 932.5 | symmetric level | ||||
a1 | 2 | Sym deform | 950 | C | 968.3 | antisymmetric level | ||||
e | 3 | Deg str | 3444 | A | 3443.6 | symmetric level | ||||
e | 3 | Deg str | 3444 | A | 3443.9 | antisymmetric level | ||||
e | 4 | Deg deform | 1627 | A | 1626.1 | symmetric level | ||||
e | 4 | Deg deform | 1627 | A | 1627.4 | antisymmetric level | ||||
Source: Shimanouchi, 1972
Notes
A | 0~1 cm-1 uncertainty |
C | 3~6 cm-1 uncertainty |
Gas Chromatography
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, Site Links, NIST Free Links, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | PMS-100 | 150. | 118. | Anderson, Jurel, et al., 1973 | He, Celite 545 (44-60 mesh); Column length: 3. m |
Packed | PMS-100 | 180. | 131. | Anderson, Jurel, et al., 1973 | He, Celite 545 (44-60 mesh); Column length: 3. m |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, Gas Chromatography, Site Links, NIST Free Links, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Cox, Wagman, et al., 1984
Cox, J.D.; Wagman, D.D.; Medvedev, V.A.,
CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1984, 1. [all data]
Chase, 1998
Chase, M.W., Jr.,
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Timmermans, J.,
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Fonseca, I.M.A.; Lobo, L.Q.,
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Brunner, E.,
Fluid Mixtures at High Pressures VI. Phase Separation and Critical Phenomena in 18 (n-Alkane + Ammonia) and 4 (n-Alkane _ Methanol) Mixtures,
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Hentze, 1977
Hentze, G.,
Critical temperature measurement of liquids by means of differential thermal analysis,
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Zander, Manfred; Thomas, Wilhelm,
Some thermodynamic properties of liquid ammonia: PVT data, vapor pressure, and critical temperature,
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. [all data]
Overstreet and Giauque, 1937
Overstreet, Roy; Giauque, W.F.,
Ammonia. The Heat Capacity and Vapor Pressure of Solid and Liquid. Heat of Vaporization. The Entropy Values from Thermal and Spectroscopic Data,
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. [all data]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
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. [all data]
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
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Notes
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- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy Pc Critical pressure Ptriple Triple point pressure S°gas,1 bar Entropy of gas at standard conditions (1 bar) T Temperature Tc Critical temperature Tfus Fusion (melting) point d(ln(kH))/d(1/T) Temperature dependence parameter for Henry's Law constant k°H Henry's Law constant at 298.15K fH°gas
Enthalpy of formation of gas at standard conditions rG°
Free energy of reaction at standard conditions rH°
Enthalpy of reaction at standard conditions rS°
Entropy of reaction at standard conditions subH
Enthalpy of sublimation vapH
Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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