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:
- Gas phase thermochemistry data
- Phase change data
- Reaction thermochemistry data: reactions 1 to 50, reactions 51 to 100
- 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
- Fluid Properties
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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 as indicated in comments:
RCD - Robert C. Dunbar
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
B - John E. Bartmess
MS - José A. Martinho Simões
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 101 to 146
By formula: (V+ • H3N) + H3N = (V+ • 2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 164. ± 9.2 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
ΔrH° | 188. | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: (Ni+ • H3N) + H3N = (Ni+ • 2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 249. ± 13. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
ΔrH° | 231. | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: (Co+ • H3N) + H3N = (Co+ • 2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 248. ± 13. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
ΔrH° | 256. | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
+ 2 = 2 + ammonium sulphide
By formula: C6H8N2S + 2H3N = 2C3H3N + ammonium sulphide
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 126.4 ± 2.5 | kJ/mol | Cm | Gladstone and Chang, 1966 | liquid phase; Heat of formation derived by Cox and Pilcher, 1970; ALS |
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 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: F- + H3N = (F- • H3N)
Bond type: Hydrogen bond (negative ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 96. | kJ/mol | FA | Spears and Ferguson, 1973 | gas phase; ΔrH>; M |
By formula: H3N+ + H3N = (H3N+ • H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 97. ± 19. | kJ/mol | EI | Stephan, Futrell, et al., 1982 | gas phase; M |
ΔrH° | 75.7 | kJ/mol | PI | Ng, Trevor, et al., 1977 | gas phase; M |
By formula: Bi+ + H3N = (Bi+ • H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 149. | kJ/mol | HPMS | Castleman, 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 149. | J/mol*K | HPMS | Castleman, 1978 | gas phase; M |
By formula: Rb+ + H3N = (Rb+ • H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 78.2 | kJ/mol | HPMS | Castleman, 1978 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 102. | J/mol*K | HPMS | Castleman, 1978 | gas phase; M |
By formula: C3H9Si+ + H3N = (C3H9Si+ • H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 195. | kJ/mol | PHPMS | Li and Stone, 1990 | gas phase; switching reaction((CH3)3Si+)CH3COOC2H5; Wojtyniak and Stone, 1986; M |
By formula: Fe+ + H3N = (Fe+ • H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 183. ± 12. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
ΔrH° | 161. | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: Cr+ + H3N = (Cr+ • H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 182. ± 10. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
ΔrH° | 156. | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: Mn+ + H3N = (Mn+ • H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 147. ± 7.9 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
ΔrH° | 154. | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: V+ + H3N = (V+ • H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 190. ± 11. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
ΔrH° | 217. | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: Ni+ + H3N = (Ni+ • H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 231. ± 16. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
ΔrH° | 214. | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: Co+ + H3N = (Co+ • H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 218. ± 15. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
ΔrH° | 246. | kJ/mol | CID | Marinelli and Squires, 1989 | gas phase; M |
By formula: C2H5NO + H2O = C2H4O2 + H3N
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 76.1 ± 1.4 | kJ/mol | Cm | Hill and Wadso, 1968 | solid phase; Heat of hydrolysis; ALS |
By formula: (Mg+ • 4H3N) + H3N = (Mg+ • 5H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 56. ± 12. | kJ/mol | CIDT | Andersen, Muntean, et al., 2000 | 5th ligand is NH3; RCD |
H6Cl2N2Pt (cr) = (cr) + 2 (g) + (4/3) (g) + (1/3) (g)
By formula: H6Cl2N2Pt (cr) = Pt (cr) + 2HCl (g) + (4/3)H3N (g) + (1/3)N2 (g)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 221. ± 3. | kJ/mol | TD-HFC | Al Takhin, Skinner, et al., 1983 | MS |
By formula: HNaO + C2H5NO = C2H3NaO2 + H3N
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -45.6 | kJ/mol | Cm | Calvet, 1933 | solid phase; Heat of hydrolysis; ALS |
2 + ammonium sulphide = + 2
By formula: 2C3H3N + ammonium sulphide = C6H8N2S + 2H3N
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -126.4 ± 2.5 | kJ/mol | Cm | Gladstone and Chang, 1966 | liquid phase; ALS |
By formula: C4H4O2 + H3N = acetoacetamide
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -173.0 | kJ/mol | Kin | Lopatin, Popov, et al., 1992 | liquid phase; solvent: Solution; ALS |
By formula: (Fe+ • 2H3N) + H3N = (Fe+ • 3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 68. ± 13. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: (Fe+ • 3H3N) + H3N = (Fe+ • 4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 41.8 ± 7.1 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: (Cr+ • 2H3N) + H3N = (Cr+ • 3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 54.0 ± 5.9 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: (Ti+ • 2H3N) + H3N = (Ti+ • 3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 176. ± 15. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: (Ti+ • 3H3N) + H3N = (Ti+ • 4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 156. ± 10. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: (Co+ • 2H3N) + H3N = (Co+ • 3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 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 |
---|---|---|---|---|---|
ΔrH° | 49.0 ± 5.9 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: (Rb+ • 4H3N) + H3N = (Rb+ • 5H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 42.7 | kJ/mol | HPMS | Castleman, 1978 | gas phase; M |
By formula: (Cr+ • 3H3N) + H3N = (Cr+ • 4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 30. ± 9.2 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: (Ti+ • H3N) + H3N = (Ti+ • 2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 175. ± 15. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: (Mn+ • 3H3N) + H3N = (Mn+ • 4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 36. ± 5.9 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: (Mg+ • 2H3N) + H3N = (Mg+ • 3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 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 |
---|---|---|---|---|---|
ΔrH° | 44. ± 10. | kJ/mol | CIDT | Andersen, Muntean, et al., 2000 | RCD |
By formula: (Ni+ • 3H3N) + H3N = (Ni+ • 4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 37. ± 5.9 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: (Cu+ • H3N) + H3N = (Cu+ • 2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 246. ± 10. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: H2N- + H3N = (H2N- • H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 50.21 | kJ/mol | PDis | Snodgrass, Coe, et al., 1989 | gas phase; B |
By formula: (Mg+ • H3N) + H3N = (Mg+ • 2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 122. ± 6.7 | kJ/mol | CIDT | Andersen, Muntean, et al., 2000 | RCD |
By formula: 6CH4N2O = C3H6N6 + 3CO2 + 6H3N
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 469.4 | kJ/mol | Eqk | Rukevich and Zagranichnyi, 1971 | liquid phase; ALS |
By formula: Ti+ + H3N = (Ti+ • H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 195. ± 7.1 | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: Cu+ + H3N = (Cu+ • H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 237. ± 14. | kJ/mol | CIDT | Walter and Armentrout, 1998 | RCD |
By formula: Mg+ + H3N = (Mg+ • H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 154. ± 12. | kJ/mol | CIDT | Andersen, Muntean, et al., 2000 | RCD |
By formula: 2CH5N = C2H7N + H3N
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -19.7 | kJ/mol | Eqk | Issoire and Long, 1960 | gas phase; ALS |
+ = H3N2O-
By formula: NO- + H3N = H3N2O-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 43.51 | kJ/mol | N/A | Hendricks, de Clercq, et al., 2002 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 29.4 | kJ/mol | Eqk | Bauder and Gunthard, 1958 | gas phase; ALS |
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.
Walter and Armentrout, 1998
Walter, D.; Armentrout, P.B.,
Periodic Trends in Chemical Reactivity: Reactions of Sc+, Y+, La+, and Lu+ with H2, D2 and HD,
J. Am. Chem. Soc., 1998, 120, 13, 3176, https://doi.org/10.1021/ja973202c
. [all data]
Marinelli and Squires, 1989
Marinelli, P.J.; Squires, R.R.,
Sequential Solvation of Atomic Transition Metal Ions: The Second Solvent Molecule Can Bind More Strongly than the First,
J. Am. Chem. Soc., 1989, 111, 11, 4101, https://doi.org/10.1021/ja00193a052
. [all data]
Gladstone and Chang, 1966
Gladstone, S.; Chang, H.Y.,
Determination of the standard heat of formation of 3,3'-thiodipropionitrile,
J. Chem. Eng. Data, 1966, 11, 238-239. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Schwartz, Davico, et al., 2000
Schwartz, R.L.; Davico, G.E.; Kim, J.B.; Lineberger, C.W.,
Negative Ion Photoelectron Spectroscopy of OH-(NH3),
J. Chem. Phys., 2000, 112, 11, 4966, https://doi.org/10.1063/1.481051
. [all data]
Spears and Ferguson, 1973
Spears, K.G.; Ferguson, E.E.,
Termolecular and Saturated Termolecular Kinetics for Li+ and F-,
J. Chem. Phys., 1973, 59, 8, 4174, https://doi.org/10.1063/1.1680610
. [all data]
Stephan, Futrell, et al., 1982
Stephan, K.; Futrell, J.H.; Peterson, K.I.; Castleman, A.W.; Wagner, H.E.; Djuric, N.; Mark, T.D.,
An Electron - Impact Study of Ammonia Clusters in a Supersonic Molecular Beam: Appearence Potentials of NH4+, (NH3)2H+, (NH3)3+, (NH3)3H+ and (NH2 NH3)+,
Int. J. Mass Spectrom. Ion Phys., 1982, 44, 3-4, 167, https://doi.org/10.1016/0020-7381(82)80023-5
. [all data]
Ng, Trevor, et al., 1977
Ng, C.Y.; Trevor, D.J.; Tiedemann, P.W.; Ceyer, S.T.; Kronebush, B.H.; Mahan, B.H.; Lee, Y.T.,
Photoinization of Dimeric Polyatomic Molecules: Proton Affinities of H2O and HF,
J. Chem. Phys., 1977, 67, 9, 4235, https://doi.org/10.1063/1.435404
. [all data]
Castleman, 1978
Castleman, A.W.,
The Properties of Clusters in the Gas Phase: Ammonia about Bi+, Rb+, and K+,
Chem. Phys. Lett., 1978, 53, 3, 560, https://doi.org/10.1016/0009-2614(78)80069-4
. [all data]
Li and Stone, 1990
Li, X.; Stone, A.J.,
Gas-Phase (CH3)3Si+ Affinities of Alkylamines and Proton Affinities of Trimethylsilyl Alkylamines,
Int. J. Mass Spectrom. Ion Proc., 1990, 101, 2-3, 149, https://doi.org/10.1016/0168-1176(90)87008-5
. [all data]
Wojtyniak and Stone, 1986
Wojtyniak, A.C.M.; Stone, A.J.,
A High-Pressure Mass Spectrometric Study of the Bonding of Trimethylsilylium to Oxygen and Aromatic Bases,
Can. J. Chem., 1986, 74, 59. [all data]
Hill and Wadso, 1968
Hill, J.O.; Wadso, I.,
Some thermochemical properties of N,N,N-triacetylammonia,
Acta Chem. Scand., 1968, 22, 1590-1594. [all data]
Andersen, Muntean, et al., 2000
Andersen, A.; Muntean, F.; Walter, D.; Rue, C.; Armentrout, P.B.,
Collision-Induced Dissociation and Theoretical Studies of Mg+ Complexes with CO, CO2, NH3, CH4, CH3OH, and C6H6,
J. Phys. Chem. A, 2000, 104, 4, 692, https://doi.org/10.1021/jp993031t
. [all data]
Al Takhin, Skinner, et al., 1983
Al Takhin, G.; Skinner, H.A.; Zaki, A.A.,
J. Chem. Soc., Dalton Trans., 1983, 2323.. [all data]
Calvet, 1933
Calvet, E.,
Mesures thermochimiques directes en chimie organique vitesses et chaleurs de saponification des amides. II.-Mesures effectuees et resultats obtenus,
J. Chim. Phys., 1933, 30, 140-146. [all data]
Lopatin, Popov, et al., 1992
Lopatin, E.B.; Popov, V.V.; Epshtein, N.A.; Mikhaleva, L.M.; Makarov, Yu.N.,
Kinetic and thermochemical characteristics of diketene-based reactions,
Khim.-Farm. Zh., 1992, 26, 76-78. [all data]
Snodgrass, Coe, et al., 1989
Snodgrass, J.T.; Coe, J.V.; Freidhoff, C.B.; McHugh, K.M.; Bowen, K.H.,
Photoelectron Spectroscopy of the Negative Cluster Ions, NH2-(NH3)n=1,2,
J. Chem. Phys., 1989, 92, xxxx. [all data]
Rukevich and Zagranichnyi, 1971
Rukevich, O.S.; Zagranichnyi, V.I.,
Equilibrium in the reaction of melamine formation from urea,
J. Anal. Chem. USSR, 1971, 44, 1616-1620. [all data]
Issoire and Long, 1960
Issoire, J.; Long, C.,
Etude de la thermodynamique chimique de la reaction de formation des methylamines,
Bull. Soc. Chim. France, 1960, 2004-2012. [all data]
Hendricks, de Clercq, et al., 2002
Hendricks, J.H.; de Clercq, H.L.; Freidhoff, C.B.; Arnold, S.T.; Eaton, J.G.; Fancher, C.; Lyapustina, S.A.; S.,
Anion solvation at the microscopic level: Photoelectron spectroscopy of the solvated anion clusters, NO-(Y)(n), where Y=Ar, Kr, Xe, N2O, H2S, NH3, H2O, and C2H4(OH)(2),
J. Chem. Phys., 2002, 116, 18, 7926-7938, https://doi.org/10.1063/1.1457444
. [all data]
Bauder and Gunthard, 1958
Bauder, A.; Gunthard, Hs.H.,
Thermodynamische Eigenschaften von Formamid,
Helv. Chim. Acta, 1958, 41, 670-673. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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