Potassium ion (1+)
- Formula: K+
- Molecular weight: 39.0978
- IUPAC Standard InChIKey: NPYPAHLBTDXSSS-UHFFFAOYSA-N
- CAS Registry Number: 24203-36-9
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Potassium cation
- 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
- Reaction thermochemistry data: reactions 1 to 50, reactions 101 to 145
- Ion clustering data
- Options:
Reaction thermochemistry data
Go To: Top, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Michael M. Meot-Ner (Mautner) and Sharon G. Lias
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Reactions 51 to 100
By formula: (K+ • 4H2O) + H2O = (K+ • 5H2O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 10.7 | kcal/mol | HPMS | Searles and Kebarle, 1969 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 25.2 | cal/mol*K | HPMS | Searles and Kebarle, 1969 | gas phase |
By formula: (K+ • 5H2O) + H2O = (K+ • 6H2O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 10.0 | kcal/mol | HPMS | Searles and Kebarle, 1969 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 25.7 | cal/mol*K | HPMS | Searles and Kebarle, 1969 | gas phase |
By formula: (K+ • 2C6H6) + C6H6 = (K+ • 3C6H6)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 14.5 | kcal/mol | HPMS | Sunner, Nishizawa, et al., 1981 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 32.7 | cal/mol*K | HPMS | Sunner, Nishizawa, et al., 1981 | gas phase |
By formula: (K+ • 2C2H3N) + C2H3N = (K+ • 3C2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 18.2 | kcal/mol | HPMS | Davidson and Kebarle, 1976 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 28.3 | cal/mol*K | HPMS | Davidson and Kebarle, 1976 | gas phase |
By formula: (K+ • 3C6H6) + C6H6 = (K+ • 4C6H6)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 12.6 | kcal/mol | HPMS | Sunner, Nishizawa, et al., 1981 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 41.4 | cal/mol*K | HPMS | Sunner, Nishizawa, et al., 1981 | gas phase |
By formula: (K+ • 3C2H3N) + C2H3N = (K+ • 4C2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 13.6 | kcal/mol | HPMS | Davidson and Kebarle, 1976 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 27.5 | cal/mol*K | HPMS | Davidson and Kebarle, 1976 | gas phase |
By formula: (K+ • 4C2H3N) + C2H3N = (K+ • 5C2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 11.5 | kcal/mol | HPMS | Davidson and Kebarle, 1976 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 33.7 | cal/mol*K | HPMS | Davidson and Kebarle, 1976 | gas phase |
By formula: (K+ • C2H3N) + C2H3N = (K+ • 2C2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 20.6 | kcal/mol | HPMS | Davidson and Kebarle, 1976 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 24.2 | cal/mol*K | HPMS | Davidson and Kebarle, 1976 | gas phase |
By formula: (K+ • 2CH4O) + CH4O = (K+ • 3CH4O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 14.5 | kcal/mol | HPMS | Evans and Keesee, 1991 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 28. | cal/mol*K | HPMS | Evans and Keesee, 1991 | gas phase |
By formula: (K+ • 3CH4O) + CH4O = (K+ • 4CH4O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 12.5 | kcal/mol | HPMS | Evans and Keesee, 1991 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 29. | cal/mol*K | HPMS | Evans and Keesee, 1991 | gas phase |
By formula: (K+ • CH4O) + CH4O = (K+ • 2CH4O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 18.0 | kcal/mol | HPMS | Evans and Keesee, 1991 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 35. | cal/mol*K | HPMS | Evans and Keesee, 1991 | gas phase |
By formula: (K+ • 2H3N) + H3N = (K+ • 3H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 13.5 | kcal/mol | HPMS | Castleman, 1978 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 27.7 | cal/mol*K | HPMS | Castleman, 1978 | gas phase |
By formula: (K+ • 3H3N) + H3N = (K+ • 4H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 11.6 | kcal/mol | HPMS | Castleman, 1978 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 25.4 | cal/mol*K | HPMS | Castleman, 1978 | gas phase |
By formula: (K+ • H3N) + H3N = (K+ • 2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 16.3 | kcal/mol | HPMS | Castleman, 1978 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 22.8 | cal/mol*K | HPMS | Castleman, 1978 | gas phase |
By formula: K+ + C3H9N = (K+ • C3H9N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 21.8 | kcal/mol | HPMS | Davidson and Kebarle, 1976, 2 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 25.5 | cal/mol*K | HPMS | Davidson and Kebarle, 1976, 2 | gas phase |
By formula: K+ + C2H7N = (K+ • C2H7N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 19.5 | kcal/mol | HPMS | Davidson and Kebarle, 1976, 2 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 21.4 | cal/mol*K | HPMS | Davidson and Kebarle, 1976, 2 | gas phase |
By formula: (K+ • 2C4H9NO) + C4H9NO = (K+ • 3C4H9NO)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 18. | kcal/mol | HPMS | Sunner, 1984 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 24. | cal/mol*K | HPMS | Sunner, 1984 | gas phase |
By formula: (K+ • C4H9NO) + C4H9NO = (K+ • 2C4H9NO)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 24. | kcal/mol | HPMS | Sunner, 1984 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 24. | cal/mol*K | HPMS | Sunner, 1984 | gas phase |
By formula: K+ + C4H10O = (K+ • C4H10O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 22.3 | kcal/mol | HPMS | Davidson and Kebarle, 1976, 2 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 24.7 | cal/mol*K | HPMS | Davidson and Kebarle, 1976, 2 | gas phase |
By formula: K+ + C6H7N = (K+ • C6H7N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 22.8 | kcal/mol | HPMS | Davidson and Kebarle, 1976, 2 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 23.7 | cal/mol*K | HPMS | Davidson and Kebarle, 1976, 2 | gas phase |
By formula: K+ + C2H3N = (K+ • C2H3N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 24.4 | kcal/mol | HPMS | Davidson and Kebarle, 1976 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 21.5 | cal/mol*K | HPMS | Davidson and Kebarle, 1976 | gas phase |
By formula: (K+ • 2C2H6OS) + C2H6OS = (K+ • 3C2H6OS)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 20. | kcal/mol | HPMS | Sunner, 1984 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 28. | cal/mol*K | HPMS | Sunner, 1984 | gas phase |
By formula: (K+ • 2C3H7NO) + C3H7NO = (K+ • 3C3H7NO)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 15. | kcal/mol | HPMS | Sunner, 1984 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 18. | cal/mol*K | HPMS | Sunner, 1984 | gas phase |
By formula: (K+ • 3C2H6OS) + C2H6OS = (K+ • 4C2H6OS)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 16. | kcal/mol | HPMS | Sunner, 1984 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 30. | cal/mol*K | HPMS | Sunner, 1984 | gas phase |
By formula: (K+ • 3C3H7NO) + C3H7NO = (K+ • 4C3H7NO)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 13. | kcal/mol | HPMS | Sunner, 1984 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 24. | cal/mol*K | HPMS | Sunner, 1984 | gas phase |
By formula: (K+ • C3H6O) + C3H6O = (K+ • 2C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 21. | kcal/mol | HPMS | Sunner, 1984 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 26. | cal/mol*K | HPMS | Sunner, 1984 | gas phase |
By formula: (K+ • C2H6OS) + C2H6OS = (K+ • 2C2H6OS)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 29. | kcal/mol | HPMS | Sunner, 1984 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 34. | cal/mol*K | HPMS | Sunner, 1984 | gas phase |
By formula: (K+ • C3H7NO) + C3H7NO = (K+ • 2C3H7NO)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 21. | kcal/mol | HPMS | Sunner, 1984 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 20. | cal/mol*K | HPMS | Sunner, 1984 | gas phase |
By formula: (K+ • 3C3H6O) + C3H6O = (K+ • 4C3H6O)
Free energy of reaction
ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
6.0 | 293. | ES/HPMS | Blades, Klassen, et al., 1995 | gas phase |
By formula: (K+ • 10K) + K = (K+ • 11K)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 12.9 | kcal/mol | PDiss | Brechignac, Cahuzac, et al., 1990 | gas phase |
By formula: (K+ • 11K) + K = (K+ • 12K)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 13.4 | kcal/mol | PDiss | Brechignac, Cahuzac, et al., 1990 | gas phase |
By formula: (K+ • 12K) + K = (K+ • 13K)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 13.4 | kcal/mol | PDiss | Brechignac, Cahuzac, et al., 1990 | gas phase |
By formula: (K+ • 13K) + K = (K+ • 14K)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 14.9 | kcal/mol | PDiss | Brechignac, Cahuzac, et al., 1990 | gas phase |
By formula: (K+ • 14K) + K = (K+ • 15K)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 13.1 | kcal/mol | PDiss | Brechignac, Cahuzac, et al., 1990 | gas phase |
By formula: (K+ • 15K) + K = (K+ • 16K)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 15.0 | kcal/mol | PDiss | Brechignac, Cahuzac, et al., 1990 | gas phase |
By formula: (K+ • 16K) + K = (K+ • 17K)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 15.5 | kcal/mol | PDiss | Brechignac, Cahuzac, et al., 1990 | gas phase |
By formula: (K+ • 17K) + K = (K+ • 18K)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 16.1 | kcal/mol | PDiss | Brechignac, Cahuzac, et al., 1990 | gas phase |
By formula: (K+ • 18K) + K = (K+ • 19K)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 15.7 | kcal/mol | PDiss | Brechignac, Cahuzac, et al., 1990 | gas phase |
By formula: (K+ • 19K) + K = (K+ • 20K)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 17.3 | kcal/mol | PDiss | Brechignac, Cahuzac, et al., 1990 | gas phase |
By formula: (K+ • 20K) + K = (K+ • 21K)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 12.9 | kcal/mol | PDiss | Brechignac, Cahuzac, et al., 1990 | gas phase |
By formula: (K+ • 21K) + K = (K+ • 22K)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 14.3 | kcal/mol | PDiss | Brechignac, Cahuzac, et al., 1990 | gas phase |
By formula: (K+ • 22K) + K = (K+ • 23K)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 13.6 | kcal/mol | PDiss | Brechignac, Cahuzac, et al., 1990 | gas phase |
By formula: (K+ • 23K) + K = (K+ • 24K)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 14.8 | kcal/mol | PDiss | Brechignac, Cahuzac, et al., 1990 | gas phase |
By formula: (K+ • 9K) + K = (K+ • 10K)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 13.1 | kcal/mol | PDiss | Brechignac, Cahuzac, et al., 1990 | gas phase |
By formula: (K+ • 2K) + K = (K+ • 3K)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 10.4 | kcal/mol | PDiss | Brechignac, Cahuzac, et al., 1990 | gas phase |
By formula: (K+ • 3K) + K = (K+ • 4K)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 15.5 | kcal/mol | PDiss | Brechignac, Cahuzac, et al., 1990 | gas phase |
By formula: (K+ • 4K) + K = (K+ • 5K)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 12.5 | kcal/mol | PDiss | Brechignac, Cahuzac, et al., 1990 | gas phase |
By formula: (K+ • 5K) + K = (K+ • 6K)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 17.3 | kcal/mol | PDiss | Brechignac, Cahuzac, et al., 1990 | gas phase |
By formula: (K+ • 6K) + K = (K+ • 7K)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 13.4 | kcal/mol | PDiss | Brechignac, Cahuzac, et al., 1990 | gas phase |
By formula: (K+ • 7K) + K = (K+ • 8K)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 20.8 | kcal/mol | PDiss | Brechignac, Cahuzac, et al., 1990 | gas phase |
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.
Searles and Kebarle, 1969
Searles, S.K.; Kebarle, P.,
Hydration of the Potassium Ion in the Gas Phase: Enthalpies and Entropies of Hydration Reactions K+(H2O)n-1 + H2O = K+(H2O)n for n=1 to n=6,
Can. J. Chem., 1969, 47, 14, 2619, https://doi.org/10.1139/v69-432
. [all data]
Sunner, Nishizawa, et al., 1981
Sunner, J.; Nishizawa, K.; Kebarle, P.,
Ion - Solvent Molecule Interactions in the Gas Phase. Potassium Ion and Benzene,
J. Phys. Chem., 1981, 85, 13, 1814, https://doi.org/10.1021/j150613a011
. [all data]
Davidson and Kebarle, 1976
Davidson, W.R.; Kebarle, P.,
Ionic Solvation by Aprotic Solvents. Gas Phase Solvation of the Alkali Ions by Acetonitrile,
J. Am. Chem. Soc., 1976, 98, 20, 6125, https://doi.org/10.1021/ja00436a010
. [all data]
Evans and Keesee, 1991
Evans, D.H.; Keesee, R.G.,
Thermodynamics of Gas-Phase Mixed-Solvent Cluster Ions - Water and Methanol on K+ and Cl- and Comparison to Liquid Solutions,
J. Phys. Chem., 1991, 95, 9, 3558, https://doi.org/10.1021/j100162a024
. [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]
Davidson and Kebarle, 1976, 2
Davidson, W.R.; Kebarle, P.,
Binding Energies and Stabilities of Potassium Ion Complexes from Studies of Gas Phase Ion Equilibria K+ + M = K+.M,
J. Am. Chem. Soc., 1976, 98, 20, 6133, https://doi.org/10.1021/ja00436a011
. [all data]
Sunner, 1984
Sunner, J. Kebarle,
Ion - Solvent Molecule Interactions in the Gas Phase. The Potassium Ion and Me2SO, DMA, DMF, and Acetone,
J. Am. Chem. Soc., 1984, 106, 21, 6135, https://doi.org/10.1021/ja00333a002
. [all data]
Blades, Klassen, et al., 1995
Blades, A.T.; Klassen, J.S.; Kebarle, P.,
Free Energies of Hydration in the Gas Phase on the Anions of Some Oxo Acids of C, N, S, P, Cl and I,
J. Am. Chem. Soc., 1995, 117, 42, 10563, https://doi.org/10.1021/ja00147a019
. [all data]
Brechignac, Cahuzac, et al., 1990
Brechignac, C.; Cahuzac, P.; Carlier, F.; De Frutos, M.; Leyniger, J.,
Cohesive Energies of (K)n+ 5<n<200 from Photoevaporation Experiments,
J. Chem. Phys., 1990, 93, 10, 7449, https://doi.org/10.1063/1.459418
. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
T Temperature ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.