Potassium ion (1+)

Gas phase thermochemistry data

Go To: Top, Reaction thermochemistry data, Ion clustering data, 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
S°gas,1 bar36.946cal/mol*KReviewChase, 1998Data last reviewed in December, 1983

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Ion clustering data, 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
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

Potassium ion (1+) + Water = (Potassium ion (1+) • Water)

By formula: K+ + H2O = (K+ • H2O)

Quantity Value Units Method Reference Comment
ΔrH°16.9kcal/molHPMSDavidson and Kebarle, 1976gas phase; M
ΔrH°16. ± 3.kcal/molHPMSBlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M
ΔrH°19.4 ± 2.5kcal/molMSBurdett and Hayhurst, 1982gas phase; flame source, about 1600 K; M
ΔrH°17.9kcal/molHPMSSearles and Kebarle, 1969gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°19.9cal/mol*KHPMSDavidson and Kebarle, 1976gas phase; M
ΔrS°23.cal/mol*KN/ABlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M
ΔrS°21.3cal/mol*KMSBurdett and Hayhurst, 1982gas phase; flame source, about 1600 K; M
ΔrS°21.6cal/mol*KHPMSSearles and Kebarle, 1969gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
9.0300.HPMSBlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M
0.4840.MSChupka, 1959gas phase; Knudsen cell, 840+-50K; M

(Potassium ion (1+) • 2Water) + Water = (Potassium ion (1+) • 3Water)

By formula: (K+ • 2H2O) + H2O = (K+ • 3H2O)

Quantity Value Units Method Reference Comment
ΔrH°13.0kcal/molES/HPMSBlades, Klassen, et al., 1996gas phase; M
ΔrH°14. ± 3.kcal/molHPMSBlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M
ΔrH°13.2kcal/molHPMSSearles and Kebarle, 1969gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°22.5cal/mol*KES/HPMSBlades, Klassen, et al., 1996gas phase; M
ΔrS°23.cal/mol*KN/ABlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M
ΔrS°23.0cal/mol*KHPMSSearles and Kebarle, 1969gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°6.3kcal/molES/HPMSBlades, Klassen, et al., 1996gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
6.6300.HPMSBlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M

Potassium ion (1+) + Argon = (Potassium ion (1+) • Argon)

By formula: K+ + Ar = (K+ • Ar)

Quantity Value Units Method Reference Comment
ΔrH°2.8 ± 0.7kcal/molAVGN/AAverage of 9 values; Individual data points

(Potassium ion (1+) • 3Water) + Water = (Potassium ion (1+) • 4Water)

By formula: (K+ • 3H2O) + H2O = (K+ • 4H2O)

Quantity Value Units Method Reference Comment
ΔrH°13. ± 3.kcal/molHPMSBlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M
ΔrH°11.8kcal/molHPMSSearles and Kebarle, 1969gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°23.cal/mol*KN/ABlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M
ΔrS°24.7cal/mol*KHPMSSearles and Kebarle, 1969gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
5.9300.HPMSBlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M

(Potassium ion (1+) • Water) + Water = (Potassium ion (1+) • 2Water)

By formula: (K+ • H2O) + H2O = (K+ • 2H2O)

Quantity Value Units Method Reference Comment
ΔrH°16. ± 3.kcal/molHPMSBlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M
ΔrH°16.1kcal/molHPMSSearles and Kebarle, 1969gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°23.cal/mol*KN/ABlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M
ΔrS°24.2cal/mol*KHPMSSearles and Kebarle, 1969gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
9.2300.HPMSBlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M

Potassium ion (1+) + Methylamine = (Potassium ion (1+) • Methylamine)

By formula: K+ + CH5N = (K+ • CH5N)

Quantity Value Units Method Reference Comment
ΔrH°19.1kcal/molHPMSDavidson and Kebarle, 1976, 2gas phase; switching reaction(K+)H2O; Davidson and Kebarle, 1976; M
Quantity Value Units Method Reference Comment
ΔrS°21.8cal/mol*KHPMSDavidson and Kebarle, 1976, 2gas phase; switching reaction(K+)H2O; Davidson and Kebarle, 1976; M
Quantity Value Units Method Reference Comment
ΔrG°12.7kcal/molHPMSDavidson and Kebarle, 1976, 2gas phase; switching reaction(K+)H2O; Davidson and Kebarle, 1976; M

Potassium ion (1+) + Methylamine, N,N-dimethyl- = (Potassium ion (1+) • Methylamine, N,N-dimethyl-)

By formula: K+ + C3H9N = (K+ • C3H9N)

Quantity Value Units Method Reference Comment
ΔrH°20.0kcal/molHPMSDavidson and Kebarle, 1976, 2gas phase; switching reaction(K+)H2O; Davidson and Kebarle, 1976; M
Quantity Value Units Method Reference Comment
ΔrS°23.4cal/mol*KHPMSDavidson and Kebarle, 1976, 2gas phase; switching reaction(K+)H2O; Davidson and Kebarle, 1976; M
Quantity Value Units Method Reference Comment
ΔrG°13.0kcal/molHPMSDavidson and Kebarle, 1976, 2gas phase; switching reaction(K+)H2O; Davidson and Kebarle, 1976; M

(Potassium ion (1+) • Benzene • Water) + Benzene = (Potassium ion (1+) • 2Benzene • Water)

By formula: (K+ • C6H6 • H2O) + C6H6 = (K+ • 2C6H6 • H2O)

Quantity Value Units Method Reference Comment
ΔrH°14.4kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle,switching reaction(K+ 3H2O)C6H6, Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
ΔrS°30.1cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle,switching reaction(K+ 3H2O)C6H6, Searles and Kebarle, 1969; M

(Potassium ion (1+) • 2Water • Benzene) + Water = (Potassium ion (1+) • 3Water • Benzene)

By formula: (K+ • 2H2O • C6H6) + H2O = (K+ • 3H2O • C6H6)

Quantity Value Units Method Reference Comment
ΔrH°11.8kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle,switching reaction(K+)4H2O; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
ΔrS°26.3cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle,switching reaction(K+)4H2O; Searles and Kebarle, 1969; M

Potassium ion (1+) + Dimethyl ether = (Potassium ion (1+) • Dimethyl ether)

By formula: K+ + C2H6O = (K+ • C2H6O)

Quantity Value Units Method Reference Comment
ΔrH°17.4 ± 1.0kcal/molCIDTRodgers and Armentrout, 2000RCD
ΔrH°22.2kcal/molHPMSDavidson and Kebarle, 1976, 3gas phase; M
ΔrH°20.8kcal/molHPMSDavidson and Kebarle, 1976, 2gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°26.8cal/mol*KHPMSDavidson and Kebarle, 1976, 3gas phase; M
ΔrS°24.8cal/mol*KHPMSDavidson and Kebarle, 1976, 2gas phase; M

(Potassium ion (1+) • Water • Benzene) + Water = (Potassium ion (1+) • 2Water • Benzene)

By formula: (K+ • H2O • C6H6) + H2O = (K+ • 2H2O • C6H6)

Quantity Value Units Method Reference Comment
ΔrH°12.7kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle,switching reaction(K+)3H2O; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
ΔrS°21.4cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle,switching reaction(K+)3H2O; Searles and Kebarle, 1969; M

(Potassium ion (1+) • Water • 2Benzene) + Water = (Potassium ion (1+) • 2Water • 2Benzene)

By formula: (K+ • H2O • 2C6H6) + H2O = (K+ • 2H2O • 2C6H6)

Quantity Value Units Method Reference Comment
ΔrH°12.2kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle(K+ 3H2O)C6H6; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
ΔrS°29.4cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle(K+ 3H2O)C6H6; Searles and Kebarle, 1969; M

(Potassium ion (1+) • Benzene • 2Water) + Benzene = (Potassium ion (1+) • 2Benzene • 2Water)

By formula: (K+ • C6H6 • 2H2O) + C6H6 = (K+ • 2C6H6 • 2H2O)

Quantity Value Units Method Reference Comment
ΔrH°12.8kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+ 3H2O)C6H6; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
ΔrS°33.7cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+ 3H2O)C6H6; Searles and Kebarle, 1969; M

(Potassium ion (1+) • 2Benzene) + Water = (Potassium ion (1+) • Water • 2Benzene)

By formula: (K+ • 2C6H6) + H2O = (K+ • H2O • 2C6H6)

Quantity Value Units Method Reference Comment
ΔrH°13.7kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+ 2H2O)C6H6; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
ΔrS°26.1cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+ 2H2O)C6H6; Searles and Kebarle, 1969; M

(Potassium ion (1+) • Benzene) + Water = (Potassium ion (1+) • Water • Benzene)

By formula: (K+ • C6H6) + H2O = (K+ • H2O • C6H6)

Quantity Value Units Method Reference Comment
ΔrH°18.1kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+ C6H6)C6H6; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
ΔrS°29.9cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+ C6H6)C6H6; Searles and Kebarle, 1969; M

Potassium ion (1+) + Ethane, 1,2-dimethoxy- = (Potassium ion (1+) • Ethane, 1,2-dimethoxy-)

By formula: K+ + C4H10O2 = (K+ • C4H10O2)

Bond type: Polydentate bonding in non-hydrogen-bonded positive ions

Quantity Value Units Method Reference Comment
ΔrH°28.4 ± 1.0kcal/molCIDTRodgers and Armentrout, 2000RCD
ΔrH°30.8kcal/molHPMSDavidson and Kebarle, 1976, 3gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°26.8cal/mol*KHPMSDavidson and Kebarle, 1976, 3gas phase; M

(Potassium ion (1+) • 2Water) + Benzene = (Potassium ion (1+) • Benzene • 2Water)

By formula: (K+ • 2H2O) + C6H6 = (K+ • C6H6 • 2H2O)

Quantity Value Units Method Reference Comment
ΔrH°13.4kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)3H2O; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
ΔrS°24.3cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)3H2O; Searles and Kebarle, 1969; M

(Potassium ion (1+) • 3Water) + Benzene = (Potassium ion (1+) • Benzene • 3Water)

By formula: (K+ • 3H2O) + C6H6 = (K+ • C6H6 • 3H2O)

Quantity Value Units Method Reference Comment
ΔrH°12.6kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)4H2O; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
ΔrS°27.6cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)4H2O; Searles and Kebarle, 1969; M

(Potassium ion (1+) • Water) + Benzene = (Potassium ion (1+) • Benzene • Water)

By formula: (K+ • H2O) + C6H6 = (K+ • C6H6 • H2O)

Quantity Value Units Method Reference Comment
ΔrH°16.8kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)2H2O; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
ΔrS°27.1cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)2H2O; Searles and Kebarle, 1969; M

Potassium ion (1+) + Ammonia = (Potassium ion (1+) • Ammonia)

By formula: K+ + H3N = (K+ • H3N)

Quantity Value Units Method Reference Comment
ΔrH°20.1kcal/molHPMSCastleman, 1978gas phase; M
ΔrH°17.8kcal/molHPMSDavidson and Kebarle, 1976, 2gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°23.0cal/mol*KHPMSCastleman, 1978gas phase; M
ΔrS°28.0cal/mol*KHPMSDavidson and Kebarle, 1976, 2gas phase; M

Potassium ion (1+) + Krypton = (Potassium ion (1+) • Krypton)

By formula: K+ + Kr = (K+ • Kr)

Quantity Value Units Method Reference Comment
ΔrH°3.21kcal/molIMobGatland, 1984gas phase; M
ΔrH°2.89kcal/molSCATTERINGGislason, 1984gas phase; M
ΔrH°2.94kcal/molIMobViehland, 1984gas phase; M
ΔrH°3.71kcal/molIMobTakebe, 1983gas phase; M

Potassium ion (1+) + neon = (Potassium ion (1+) • neon)

By formula: K+ + Ne = (K+ • Ne)

Quantity Value Units Method Reference Comment
ΔrH°1.09kcal/molSCATTERINGGislason, 1984gas phase; M
ΔrH°0.92kcal/molIMobViehland, 1984gas phase; M
ΔrH°0.95kcal/molIMobTakebe, 1983gas phase; M
ΔrH°0.99kcal/molIMobRobson and Kumar, 1973gas phase; M

Potassium ion (1+) + helium = (Potassium ion (1+) • helium)

By formula: K+ + He = (K+ • He)

Quantity Value Units Method Reference Comment
ΔrH°0.58kcal/molSCATTERINGGislason, 1984gas phase; M
ΔrH°0.53kcal/molIMobViehland, 1984gas phase; M
ΔrH°0.53kcal/molIMobTakebe, 1983gas phase; M
ΔrH°0.57kcal/molIMobRobson and Kumar, 1973gas phase; M

Potassium ion (1+) + Xenon = (Potassium ion (1+) • Xenon)

By formula: K+ + Xe = (K+ • Xe)

Quantity Value Units Method Reference Comment
ΔrH°4.31kcal/molIMobGatland, 1984gas phase; M
ΔrH°3.78kcal/molSCATTERINGGislason, 1984gas phase; M
ΔrH°4.84kcal/molIMobViehland, 1984gas phase; M
ΔrH°5.33kcal/molIMobTakebe, 1983gas phase; M

Potassium ion (1+) + potassium bromide = (Potassium ion (1+) • potassium bromide)

By formula: K+ + BrK = (K+ • BrK)

Quantity Value Units Method Reference Comment
ΔrH°41.5kcal/molMSKudin, Gusarov, et al., 1973gas phase; Knudsen cell; M
ΔrH°40.8kcal/molMSChupka, 1959gas phase; Knudsen cell; M
Quantity Value Units Method Reference Comment
ΔrS°22.8cal/mol*KMSChupka, 1959gas phase; Knudsen cell; M

Potassium ion (1+) + Carbon dioxide = (Potassium ion (1+) • Carbon dioxide)

By formula: K+ + CO2 = (K+ • CO2)

Quantity Value Units Method Reference Comment
ΔrH°8.5kcal/molHPMSCastleman and Keesee, 1981gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°15.2cal/mol*KHPMSCastleman and Keesee, 1981gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.7310.DTKeller and Beyer, 1971gas phase; low E/N; M

(Potassium ion (1+) • Hydrogen) + Hydrogen = (Potassium ion (1+) • 2Hydrogen)

By formula: (K+ • H2) + H2 = (K+ • 2H2)

Quantity Value Units Method Reference Comment
ΔrH°1.47kcal/molSIDTBushnell, Kemper, et al., 1994gas phase; ΔrH(0K) = 1.35 kcal/mol; M
Quantity Value Units Method Reference Comment
ΔrS°11.2cal/mol*KSIDTBushnell, Kemper, et al., 1994gas phase; ΔrH(0K) = 1.35 kcal/mol; M

(Potassium ion (1+) • 2Ethylenediamine) + Ethylenediamine = (Potassium ion (1+) • 3Ethylenediamine)

By formula: (K+ • 2C2H8N2) + C2H8N2 = (K+ • 3C2H8N2)

Bond type: Polydentate bonding in non-hydrogen-bonded positive ions

Quantity Value Units Method Reference Comment
ΔrH°12.9kcal/molHPMSDavidson and Kebarle, 1976, 3gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°26.3cal/mol*KHPMSDavidson and Kebarle, 1976, 3gas phase; M

(Potassium ion (1+) • 2Water) + Methyl Alcohol = (Potassium ion (1+) • Methyl Alcohol • 2Water)

By formula: (K+ • 2H2O) + CH4O = (K+ • CH4O • 2H2O)

Quantity Value Units Method Reference Comment
ΔrH°16.6kcal/molHPMSEvans and Keesee, 1991gas phase; switching reaction,n(K+)3H2O; M
Quantity Value Units Method Reference Comment
ΔrS°30.9cal/mol*KHPMSEvans and Keesee, 1991gas phase; switching reaction,n(K+)3H2O; M

(Potassium ion (1+) • Ethylenediamine) + Ethylenediamine = (Potassium ion (1+) • 2Ethylenediamine)

By formula: (K+ • C2H8N2) + C2H8N2 = (K+ • 2C2H8N2)

Bond type: Polydentate bonding in non-hydrogen-bonded positive ions

Quantity Value Units Method Reference Comment
ΔrH°22.2kcal/molHPMSDavidson and Kebarle, 1976, 3gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°32.0cal/mol*KHPMSDavidson and Kebarle, 1976, 3gas phase; M

(Potassium ion (1+) • 2Acetone) + Acetone = (Potassium ion (1+) • 3Acetone)

By formula: (K+ • 2C3H6O) + C3H6O = (K+ • 3C3H6O)

Quantity Value Units Method Reference Comment
ΔrH°16.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°24.cal/mol*KHPMSSunner, 1984gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
9.2293.ES/HPMSBlades, Klassen, et al., 1995gas phase; M

Potassium ion (1+) + Hydrogen = (Potassium ion (1+) • Hydrogen)

By formula: K+ + H2 = (K+ • H2)

Quantity Value Units Method Reference Comment
ΔrH°1.86kcal/molSIDTBushnell, Kemper, et al., 1994gas phase; ΔrH(0K) = 1.45 kcal/mol; M
Quantity Value Units Method Reference Comment
ΔrS°13.5cal/mol*KSIDTBushnell, Kemper, et al., 1994gas phase; ΔrH(0K) = 1.45 kcal/mol; M

Potassium ion (1+) + Ethylenediamine = (Potassium ion (1+) • Ethylenediamine)

By formula: K+ + C2H8N2 = (K+ • C2H8N2)

Bond type: Polydentate bonding in non-hydrogen-bonded positive ions

Quantity Value Units Method Reference Comment
ΔrH°25.7kcal/molHPMSDavidson and Kebarle, 1976, 3gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°22.3cal/mol*KHPMSDavidson and Kebarle, 1976, 3gas phase; M

(Potassium ion (1+) • 4Dimethyl Sulfoxide) + Dimethyl Sulfoxide = (Potassium ion (1+) • 5Dimethyl Sulfoxide)

By formula: (K+ • 4C2H6OS) + C2H6OS = (K+ • 5C2H6OS)

Quantity Value Units Method Reference Comment
ΔrH°15.8kcal/molHPMSSunner, 1984gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
ΔrS°37.cal/mol*KHPMSSunner, 1984gas phase; Entropy change is questionable; M

(Potassium ion (1+) • 5Dimethyl Sulfoxide) + Dimethyl Sulfoxide = (Potassium ion (1+) • 6Dimethyl Sulfoxide)

By formula: (K+ • 5C2H6OS) + C2H6OS = (K+ • 6C2H6OS)

Quantity Value Units Method Reference Comment
ΔrH°15.5kcal/molHPMSSunner, 1984gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
ΔrS°40.cal/mol*KHPMSSunner, 1984gas phase; Entropy change is questionable; M

(Potassium ion (1+) • Benzene) + Benzene = (Potassium ion (1+) • 2Benzene)

By formula: (K+ • C6H6) + C6H6 = (K+ • 2C6H6)

Quantity Value Units Method Reference Comment
ΔrH°16.1 ± 1.7kcal/molCIDTAmicangelo and Armentrout, 2000RCD
ΔrH°18.8kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°33.9cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; M

Potassium ion (1+) + Methyl Alcohol = (Potassium ion (1+) • Methyl Alcohol)

By formula: K+ + CH4O = (K+ • CH4O)

Quantity Value Units Method Reference Comment
ΔrH°21.9kcal/molHPMSEvans and Keesee, 1991gas phase; switching reaction,n(K+)H2O; M
Quantity Value Units Method Reference Comment
ΔrS°31.6cal/mol*KHPMSEvans and Keesee, 1991gas phase; switching reaction,n(K+)H2O; M

Potassium ion (1+) + Pyridine = (Potassium ion (1+) • Pyridine)

By formula: K+ + C5H5N = (K+ • C5H5N)

Quantity Value Units Method Reference Comment
ΔrH°21.6 ± 0.9kcal/molCIDTAmunugama and Rodgers, 2000RCD
ΔrH°20.7kcal/molHPMSDavidson and Kebarle, 1976, 2gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°18.6cal/mol*KHPMSDavidson and Kebarle, 1976, 2gas phase; M

Potassium ion (1+) + Benzene = (Potassium ion (1+) • Benzene)

By formula: K+ + C6H6 = (K+ • C6H6)

Quantity Value Units Method Reference Comment
ΔrH°17.5 ± 0.9kcal/molCIDTAmicangelo and Armentrout, 2000RCD
ΔrH°19.2kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°24.6cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; M

Potassium ion (1+) + N,N-Dimethylacetamide = (Potassium ion (1+) • N,N-Dimethylacetamide)

By formula: K+ + C4H9NO = (K+ • C4H9NO)

Quantity Value Units Method Reference Comment
ΔrH°29.0kcal/molCIDTKlassen, Anderson, et al., 1996RCD
ΔrH°31.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°23.cal/mol*KHPMSSunner, 1984gas phase; M

Potassium ion (1+) + Acetone = (Potassium ion (1+) • Acetone)

By formula: K+ + C3H6O = (K+ • C3H6O)

Quantity Value Units Method Reference Comment
ΔrH°24.4kcal/molCIDTKlassen, Anderson, et al., 1996RCD
ΔrH°26.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°24.cal/mol*KHPMSSunner, 1984gas phase; M

Potassium ion (1+) + Dimethyl Sulfoxide = (Potassium ion (1+) • Dimethyl Sulfoxide)

By formula: K+ + C2H6OS = (K+ • C2H6OS)

Quantity Value Units Method Reference Comment
ΔrH°31.1kcal/molCIDTKlassen, Anderson, et al., 1996RCD
ΔrH°35.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°31.cal/mol*KHPMSSunner, 1984gas phase; M

Potassium ion (1+) + Formamide, N,N-dimethyl- = (Potassium ion (1+) • Formamide, N,N-dimethyl-)

By formula: K+ + C3H7NO = (K+ • C3H7NO)

Quantity Value Units Method Reference Comment
ΔrH°29.5kcal/molCIDTKlassen, Anderson, et al., 1996RCD
ΔrH°31.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°26.cal/mol*KHPMSSunner, 1984gas phase; M

(Potassium ion (1+) • Water • Methyl Alcohol) + Water = (Potassium ion (1+) • 2Water • Methyl Alcohol)

By formula: (K+ • H2O • CH4O) + H2O = (K+ • 2H2O • CH4O)

Quantity Value Units Method Reference Comment
ΔrH°13.1kcal/molHPMSEvans and Keesee, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°22.6cal/mol*KHPMSEvans and Keesee, 1991gas phase; M

(Potassium ion (1+) • 2Methyl Alcohol • Water) + Methyl Alcohol = (Potassium ion (1+) • 3Methyl Alcohol • Water)

By formula: (K+ • 2CH4O • H2O) + CH4O = (K+ • 3CH4O • H2O)

Quantity Value Units Method Reference Comment
ΔrH°12.5kcal/molHPMSEvans and Keesee, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°25.6cal/mol*KHPMSEvans and Keesee, 1991gas phase; M

(Potassium ion (1+) • Methyl Alcohol • Water) + Methyl Alcohol = (Potassium ion (1+) • 2Methyl Alcohol • Water)

By formula: (K+ • CH4O • H2O) + CH4O = (K+ • 2CH4O • H2O)

Quantity Value Units Method Reference Comment
ΔrH°13.5kcal/molHPMSEvans and Keesee, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°27.3cal/mol*KHPMSEvans and Keesee, 1991gas phase; M

(Potassium ion (1+) • 2Methyl Alcohol) + Water = (Potassium ion (1+) • Water • 2Methyl Alcohol)

By formula: (K+ • 2CH4O) + H2O = (K+ • H2O • 2CH4O)

Quantity Value Units Method Reference Comment
ΔrH°11.3kcal/molHPMSEvans and Keesee, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°18.0cal/mol*KHPMSEvans and Keesee, 1991gas phase; M

Potassium ion (1+) + potassium chloride = (Potassium ion (1+) • potassium chloride)

By formula: K+ + ClK = (K+ • ClK)

Quantity Value Units Method Reference Comment
ΔrH°41.2kcal/molMSChupka, 1959gas phase; Knudsen cell; M
Quantity Value Units Method Reference Comment
ΔrS°19.6cal/mol*KMSChupka, 1959gas phase; Knudsen cell; M

(Potassium ion (1+) • Methyl Alcohol) + Water = (Potassium ion (1+) • Water • Methyl Alcohol)

By formula: (K+ • CH4O) + H2O = (K+ • H2O • CH4O)

Quantity Value Units Method Reference Comment
ΔrH°15.6kcal/molHPMSEvans and Keesee, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°22.5cal/mol*KHPMSEvans and Keesee, 1991gas phase; M

(Potassium ion (1+) • Water) + Methyl Alcohol = (Potassium ion (1+) • Methyl Alcohol • Water)

By formula: (K+ • H2O) + CH4O = (K+ • CH4O • H2O)

Quantity Value Units Method Reference Comment
ΔrH°19.6kcal/molHPMSEvans and Keesee, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°32.5cal/mol*KHPMSEvans and Keesee, 1991gas phase; M

Ion clustering data

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, 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

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

Potassium ion (1+) + Argon = (Potassium ion (1+) • Argon)

By formula: K+ + Ar = (K+ • Ar)

Quantity Value Units Method Reference Comment
ΔrH°2.8 ± 0.7kcal/molAVGN/AAverage of 9 values; Individual data points

Potassium ion (1+) + potassium bromide = (Potassium ion (1+) • potassium bromide)

By formula: K+ + BrK = (K+ • BrK)

Quantity Value Units Method Reference Comment
ΔrH°41.5kcal/molMSKudin, Gusarov, et al., 1973gas phase; Knudsen cell; M
ΔrH°40.8kcal/molMSChupka, 1959gas phase; Knudsen cell; M
Quantity Value Units Method Reference Comment
ΔrS°22.8cal/mol*KMSChupka, 1959gas phase; Knudsen cell; M

Potassium ion (1+) + 2H-Tetrazole = (Potassium ion (1+) • 2H-Tetrazole)

By formula: K+ + CH2N4 = (K+ • CH2N4)

Quantity Value Units Method Reference Comment
ΔrH°21.3 ± 1.2kcal/molCIDTRodgers and Armentrout, 2000RCD

Potassium ion (1+) + Methyl Alcohol = (Potassium ion (1+) • Methyl Alcohol)

By formula: K+ + CH4O = (K+ • CH4O)

Quantity Value Units Method Reference Comment
ΔrH°21.9kcal/molHPMSEvans and Keesee, 1991gas phase; switching reaction,n(K+)H2O; M
Quantity Value Units Method Reference Comment
ΔrS°31.6cal/mol*KHPMSEvans and Keesee, 1991gas phase; switching reaction,n(K+)H2O; M

(Potassium ion (1+) • Methyl Alcohol) + Methyl Alcohol = (Potassium ion (1+) • 2Methyl Alcohol)

By formula: (K+ • CH4O) + CH4O = (K+ • 2CH4O)

Quantity Value Units Method Reference Comment
ΔrH°18.0kcal/molHPMSEvans and Keesee, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°35.cal/mol*KHPMSEvans and Keesee, 1991gas phase; M

(Potassium ion (1+) • 2Methyl Alcohol) + Methyl Alcohol = (Potassium ion (1+) • 3Methyl Alcohol)

By formula: (K+ • 2CH4O) + CH4O = (K+ • 3CH4O)

Quantity Value Units Method Reference Comment
ΔrH°14.5kcal/molHPMSEvans and Keesee, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°28.cal/mol*KHPMSEvans and Keesee, 1991gas phase; M

(Potassium ion (1+) • 3Methyl Alcohol) + Methyl Alcohol = (Potassium ion (1+) • 4Methyl Alcohol)

By formula: (K+ • 3CH4O) + CH4O = (K+ • 4CH4O)

Quantity Value Units Method Reference Comment
ΔrH°12.5kcal/molHPMSEvans and Keesee, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°29.cal/mol*KHPMSEvans and Keesee, 1991gas phase; M

(Potassium ion (1+) • Methyl Alcohol) + Water = (Potassium ion (1+) • Water • Methyl Alcohol)

By formula: (K+ • CH4O) + H2O = (K+ • H2O • CH4O)

Quantity Value Units Method Reference Comment
ΔrH°15.6kcal/molHPMSEvans and Keesee, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°22.5cal/mol*KHPMSEvans and Keesee, 1991gas phase; M

(Potassium ion (1+) • 2Methyl Alcohol) + Water = (Potassium ion (1+) • Water • 2Methyl Alcohol)

By formula: (K+ • 2CH4O) + H2O = (K+ • H2O • 2CH4O)

Quantity Value Units Method Reference Comment
ΔrH°11.3kcal/molHPMSEvans and Keesee, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°18.0cal/mol*KHPMSEvans and Keesee, 1991gas phase; M

(Potassium ion (1+) • Methyl Alcohol • Water) + Methyl Alcohol = (Potassium ion (1+) • 2Methyl Alcohol • Water)

By formula: (K+ • CH4O • H2O) + CH4O = (K+ • 2CH4O • H2O)

Quantity Value Units Method Reference Comment
ΔrH°13.5kcal/molHPMSEvans and Keesee, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°27.3cal/mol*KHPMSEvans and Keesee, 1991gas phase; M

(Potassium ion (1+) • 2Methyl Alcohol • Water) + Methyl Alcohol = (Potassium ion (1+) • 3Methyl Alcohol • Water)

By formula: (K+ • 2CH4O • H2O) + CH4O = (K+ • 3CH4O • H2O)

Quantity Value Units Method Reference Comment
ΔrH°12.5kcal/molHPMSEvans and Keesee, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°25.6cal/mol*KHPMSEvans and Keesee, 1991gas phase; M

Potassium ion (1+) + Methylamine = (Potassium ion (1+) • Methylamine)

By formula: K+ + CH5N = (K+ • CH5N)

Quantity Value Units Method Reference Comment
ΔrH°19.1kcal/molHPMSDavidson and Kebarle, 1976, 2gas phase; switching reaction(K+)H2O; Davidson and Kebarle, 1976; M
Quantity Value Units Method Reference Comment
ΔrS°21.8cal/mol*KHPMSDavidson and Kebarle, 1976, 2gas phase; switching reaction(K+)H2O; Davidson and Kebarle, 1976; M
Quantity Value Units Method Reference Comment
ΔrG°12.7kcal/molHPMSDavidson and Kebarle, 1976, 2gas phase; switching reaction(K+)H2O; Davidson and Kebarle, 1976; M

Potassium ion (1+) + Carbon monoxide = (Potassium ion (1+) • Carbon monoxide)

By formula: K+ + CO = (K+ • CO)

Quantity Value Units Method Reference Comment
ΔrH°4.3 ± 1.2kcal/molCIDTRodgers and Armentrout, 2000RCD

Potassium ion (1+) + Carbon dioxide = (Potassium ion (1+) • Carbon dioxide)

By formula: K+ + CO2 = (K+ • CO2)

Quantity Value Units Method Reference Comment
ΔrH°8.5kcal/molHPMSCastleman and Keesee, 1981gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°15.2cal/mol*KHPMSCastleman and Keesee, 1981gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.7310.DTKeller and Beyer, 1971gas phase; low E/N; M

Potassium ion (1+) + Acetonitrile = (Potassium ion (1+) • Acetonitrile)

By formula: K+ + C2H3N = (K+ • C2H3N)

Quantity Value Units Method Reference Comment
ΔrH°24.4kcal/molHPMSDavidson and Kebarle, 1976gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°21.5cal/mol*KHPMSDavidson and Kebarle, 1976gas phase; M

(Potassium ion (1+) • Acetonitrile) + Acetonitrile = (Potassium ion (1+) • 2Acetonitrile)

By formula: (K+ • C2H3N) + C2H3N = (K+ • 2C2H3N)

Quantity Value Units Method Reference Comment
ΔrH°20.6kcal/molHPMSDavidson and Kebarle, 1976gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°24.2cal/mol*KHPMSDavidson and Kebarle, 1976gas phase; M

(Potassium ion (1+) • 2Acetonitrile) + Acetonitrile = (Potassium ion (1+) • 3Acetonitrile)

By formula: (K+ • 2C2H3N) + C2H3N = (K+ • 3C2H3N)

Quantity Value Units Method Reference Comment
ΔrH°18.2kcal/molHPMSDavidson and Kebarle, 1976gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°28.3cal/mol*KHPMSDavidson and Kebarle, 1976gas phase; M

(Potassium ion (1+) • 3Acetonitrile) + Acetonitrile = (Potassium ion (1+) • 4Acetonitrile)

By formula: (K+ • 3C2H3N) + C2H3N = (K+ • 4C2H3N)

Quantity Value Units Method Reference Comment
ΔrH°13.6kcal/molHPMSDavidson and Kebarle, 1976gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°27.5cal/mol*KHPMSDavidson and Kebarle, 1976gas phase; M

(Potassium ion (1+) • 4Acetonitrile) + Acetonitrile = (Potassium ion (1+) • 5Acetonitrile)

By formula: (K+ • 4C2H3N) + C2H3N = (K+ • 5C2H3N)

Quantity Value Units Method Reference Comment
ΔrH°11.5kcal/molHPMSDavidson and Kebarle, 1976gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°33.7cal/mol*KHPMSDavidson and Kebarle, 1976gas phase; M

Potassium ion (1+) + C2H3N3 = (Potassium ion (1+) • C2H3N3)

By formula: K+ + C2H3N3 = (K+ • C2H3N3)

Quantity Value Units Method Reference Comment
ΔrH°13.1 ± 1.4kcal/molCIDTRodgers and Armentrout, 2000RCD

Potassium ion (1+) + 1H-1,2,4-Triazole = (Potassium ion (1+) • 1H-1,2,4-Triazole)

By formula: K+ + C2H3N3 = (K+ • C2H3N3)

Quantity Value Units Method Reference Comment
ΔrH°20.8 ± 1.2kcal/molCIDTRodgers and Armentrout, 2000RCD

Potassium ion (1+) + Acetamide = (Potassium ion (1+) • Acetamide)

By formula: K+ + C2H5NO = (K+ • C2H5NO)

Quantity Value Units Method Reference Comment
ΔrH°29.7kcal/molCIDTKlassen, Anderson, et al., 1996RCD

Potassium ion (1+) + Glycine = (Potassium ion (1+) • Glycine)

By formula: K+ + C2H5NO2 = (K+ • C2H5NO2)

Quantity Value Units Method Reference Comment
ΔrH°30.0kcal/molCIDTKlassen, Anderson, et al., 1996RCD

Potassium ion (1+) + Dimethyl Sulfoxide = (Potassium ion (1+) • Dimethyl Sulfoxide)

By formula: K+ + C2H6OS = (K+ • C2H6OS)

Quantity Value Units Method Reference Comment
ΔrH°31.1kcal/molCIDTKlassen, Anderson, et al., 1996RCD
ΔrH°35.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°31.cal/mol*KHPMSSunner, 1984gas phase; M

(Potassium ion (1+) • Dimethyl Sulfoxide) + Dimethyl Sulfoxide = (Potassium ion (1+) • 2Dimethyl Sulfoxide)

By formula: (K+ • C2H6OS) + C2H6OS = (K+ • 2C2H6OS)

Quantity Value Units Method Reference Comment
ΔrH°29.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°34.cal/mol*KHPMSSunner, 1984gas phase; M

(Potassium ion (1+) • 2Dimethyl Sulfoxide) + Dimethyl Sulfoxide = (Potassium ion (1+) • 3Dimethyl Sulfoxide)

By formula: (K+ • 2C2H6OS) + C2H6OS = (K+ • 3C2H6OS)

Quantity Value Units Method Reference Comment
ΔrH°20.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°28.cal/mol*KHPMSSunner, 1984gas phase; M

(Potassium ion (1+) • 3Dimethyl Sulfoxide) + Dimethyl Sulfoxide = (Potassium ion (1+) • 4Dimethyl Sulfoxide)

By formula: (K+ • 3C2H6OS) + C2H6OS = (K+ • 4C2H6OS)

Quantity Value Units Method Reference Comment
ΔrH°16.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°30.cal/mol*KHPMSSunner, 1984gas phase; M

(Potassium ion (1+) • 4Dimethyl Sulfoxide) + Dimethyl Sulfoxide = (Potassium ion (1+) • 5Dimethyl Sulfoxide)

By formula: (K+ • 4C2H6OS) + C2H6OS = (K+ • 5C2H6OS)

Quantity Value Units Method Reference Comment
ΔrH°15.8kcal/molHPMSSunner, 1984gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
ΔrS°37.cal/mol*KHPMSSunner, 1984gas phase; Entropy change is questionable; M

(Potassium ion (1+) • 5Dimethyl Sulfoxide) + Dimethyl Sulfoxide = (Potassium ion (1+) • 6Dimethyl Sulfoxide)

By formula: (K+ • 5C2H6OS) + C2H6OS = (K+ • 6C2H6OS)

Quantity Value Units Method Reference Comment
ΔrH°15.5kcal/molHPMSSunner, 1984gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
ΔrS°40.cal/mol*KHPMSSunner, 1984gas phase; Entropy change is questionable; M

Potassium ion (1+) + Dimethyl ether = (Potassium ion (1+) • Dimethyl ether)

By formula: K+ + C2H6O = (K+ • C2H6O)

Quantity Value Units Method Reference Comment
ΔrH°17.4 ± 1.0kcal/molCIDTRodgers and Armentrout, 2000RCD
ΔrH°22.2kcal/molHPMSDavidson and Kebarle, 1976, 3gas phase; M
ΔrH°20.8kcal/molHPMSDavidson and Kebarle, 1976, 2gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°26.8cal/mol*KHPMSDavidson and Kebarle, 1976, 3gas phase; M
ΔrS°24.8cal/mol*KHPMSDavidson and Kebarle, 1976, 2gas phase; M

(Potassium ion (1+) • Dimethyl ether) + Dimethyl ether = (Potassium ion (1+) • 2Dimethyl ether)

By formula: (K+ • C2H6O) + C2H6O = (K+ • 2C2H6O)

Quantity Value Units Method Reference Comment
ΔrH°16.5 ± 1.2kcal/molCIDTRodgers and Armentrout, 2000RCD

(Potassium ion (1+) • 2Dimethyl ether) + Dimethyl ether = (Potassium ion (1+) • 3Dimethyl ether)

By formula: (K+ • 2C2H6O) + C2H6O = (K+ • 3C2H6O)

Quantity Value Units Method Reference Comment
ΔrH°13.6 ± 1.0kcal/molCIDTRodgers and Armentrout, 2000RCD

(Potassium ion (1+) • 3Dimethyl ether) + Dimethyl ether = (Potassium ion (1+) • 4Dimethyl ether)

By formula: (K+ • 3C2H6O) + C2H6O = (K+ • 4C2H6O)

Quantity Value Units Method Reference Comment
ΔrH°12.0 ± 1.9kcal/molCIDTRodgers and Armentrout, 2000RCD

Potassium ion (1+) + Dimethylamine = (Potassium ion (1+) • Dimethylamine)

By formula: K+ + C2H7N = (K+ • C2H7N)

Quantity Value Units Method Reference Comment
ΔrH°19.5kcal/molHPMSDavidson and Kebarle, 1976, 2gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°21.4cal/mol*KHPMSDavidson and Kebarle, 1976, 2gas phase; M

Potassium ion (1+) + Ethylenediamine = (Potassium ion (1+) • Ethylenediamine)

By formula: K+ + C2H8N2 = (K+ • C2H8N2)

Bond type: Polydentate bonding in non-hydrogen-bonded positive ions

Quantity Value Units Method Reference Comment
ΔrH°25.7kcal/molHPMSDavidson and Kebarle, 1976, 3gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°22.3cal/mol*KHPMSDavidson and Kebarle, 1976, 3gas phase; M

(Potassium ion (1+) • Ethylenediamine) + Ethylenediamine = (Potassium ion (1+) • 2Ethylenediamine)

By formula: (K+ • C2H8N2) + C2H8N2 = (K+ • 2C2H8N2)

Bond type: Polydentate bonding in non-hydrogen-bonded positive ions

Quantity Value Units Method Reference Comment
ΔrH°22.2kcal/molHPMSDavidson and Kebarle, 1976, 3gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°32.0cal/mol*KHPMSDavidson and Kebarle, 1976, 3gas phase; M

(Potassium ion (1+) • 2Ethylenediamine) + Ethylenediamine = (Potassium ion (1+) • 3Ethylenediamine)

By formula: (K+ • 2C2H8N2) + C2H8N2 = (K+ • 3C2H8N2)

Bond type: Polydentate bonding in non-hydrogen-bonded positive ions

Quantity Value Units Method Reference Comment
ΔrH°12.9kcal/molHPMSDavidson and Kebarle, 1976, 3gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°26.3cal/mol*KHPMSDavidson and Kebarle, 1976, 3gas phase; M

Potassium ion (1+) + 1,3,5-Triazine = (Potassium ion (1+) • 1,3,5-Triazine)

By formula: K+ + C3H3N3 = (K+ • C3H3N3)

Quantity Value Units Method Reference Comment
ΔrH°13.2 ± 0.7kcal/molCIDTAmunugama and Rodgers, 2000RCD

Potassium ion (1+) + 1H-Pyrazole = (Potassium ion (1+) • 1H-Pyrazole)

By formula: K+ + C3H4N2 = (K+ • C3H4N2)

Quantity Value Units Method Reference Comment
ΔrH°20.0 ± 0.8kcal/molCIDTHuang and Rodgers, 2002RCD

Potassium ion (1+) + 1H-Imidazole = (Potassium ion (1+) • 1H-Imidazole)

By formula: K+ + C3H4N2 = (K+ • C3H4N2)

Quantity Value Units Method Reference Comment
ΔrH°26.0 ± 1.3kcal/molCIDTHuang and Rodgers, 2002RCD

Potassium ion (1+) + Acetone = (Potassium ion (1+) • Acetone)

By formula: K+ + C3H6O = (K+ • C3H6O)

Quantity Value Units Method Reference Comment
ΔrH°24.4kcal/molCIDTKlassen, Anderson, et al., 1996RCD
ΔrH°26.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°24.cal/mol*KHPMSSunner, 1984gas phase; M

(Potassium ion (1+) • Acetone) + Acetone = (Potassium ion (1+) • 2Acetone)

By formula: (K+ • C3H6O) + C3H6O = (K+ • 2C3H6O)

Quantity Value Units Method Reference Comment
ΔrH°21.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°26.cal/mol*KHPMSSunner, 1984gas phase; M

(Potassium ion (1+) • 2Acetone) + Acetone = (Potassium ion (1+) • 3Acetone)

By formula: (K+ • 2C3H6O) + C3H6O = (K+ • 3C3H6O)

Quantity Value Units Method Reference Comment
ΔrH°16.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°24.cal/mol*KHPMSSunner, 1984gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
9.2293.ES/HPMSBlades, Klassen, et al., 1995gas phase; M

(Potassium ion (1+) • 3Acetone) + Acetone = (Potassium ion (1+) • 4Acetone)

By formula: (K+ • 3C3H6O) + C3H6O = (K+ • 4C3H6O)

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
6.0293.ES/HPMSBlades, Klassen, et al., 1995gas phase; M

Potassium ion (1+) + Formamide, N,N-dimethyl- = (Potassium ion (1+) • Formamide, N,N-dimethyl-)

By formula: K+ + C3H7NO = (K+ • C3H7NO)

Quantity Value Units Method Reference Comment
ΔrH°29.5kcal/molCIDTKlassen, Anderson, et al., 1996RCD
ΔrH°31.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°26.cal/mol*KHPMSSunner, 1984gas phase; M

(Potassium ion (1+) • Formamide, N,N-dimethyl-) + Formamide, N,N-dimethyl- = (Potassium ion (1+) • 2Formamide, N,N-dimethyl-)

By formula: (K+ • C3H7NO) + C3H7NO = (K+ • 2C3H7NO)

Quantity Value Units Method Reference Comment
ΔrH°21.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°20.cal/mol*KHPMSSunner, 1984gas phase; M

(Potassium ion (1+) • 2Formamide, N,N-dimethyl-) + Formamide, N,N-dimethyl- = (Potassium ion (1+) • 3Formamide, N,N-dimethyl-)

By formula: (K+ • 2C3H7NO) + C3H7NO = (K+ • 3C3H7NO)

Quantity Value Units Method Reference Comment
ΔrH°15.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°18.cal/mol*KHPMSSunner, 1984gas phase; M

(Potassium ion (1+) • 3Formamide, N,N-dimethyl-) + Formamide, N,N-dimethyl- = (Potassium ion (1+) • 4Formamide, N,N-dimethyl-)

By formula: (K+ • 3C3H7NO) + C3H7NO = (K+ • 4C3H7NO)

Quantity Value Units Method Reference Comment
ΔrH°13.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°24.cal/mol*KHPMSSunner, 1984gas phase; M

Potassium ion (1+) + Acetamide, N-methyl- = (Potassium ion (1+) • Acetamide, N-methyl-)

By formula: K+ + C3H7NO = (K+ • C3H7NO)

Quantity Value Units Method Reference Comment
ΔrH°30.4kcal/molCIDTKlassen, Anderson, et al., 1996RCD

Potassium ion (1+) + Methylamine, N,N-dimethyl- = (Potassium ion (1+) • Methylamine, N,N-dimethyl-)

By formula: K+ + C3H9N = (K+ • C3H9N)

Quantity Value Units Method Reference Comment
ΔrH°20.0kcal/molHPMSDavidson and Kebarle, 1976, 2gas phase; switching reaction(K+)H2O; Davidson and Kebarle, 1976; M
Quantity Value Units Method Reference Comment
ΔrS°23.4cal/mol*KHPMSDavidson and Kebarle, 1976, 2gas phase; switching reaction(K+)H2O; Davidson and Kebarle, 1976; M
Quantity Value Units Method Reference Comment
ΔrG°13.0kcal/molHPMSDavidson and Kebarle, 1976, 2gas phase; switching reaction(K+)H2O; Davidson and Kebarle, 1976; M

Potassium ion (1+) + Propylamine = (Potassium ion (1+) • Propylamine)

By formula: K+ + C3H9N = (K+ • C3H9N)

Quantity Value Units Method Reference Comment
ΔrH°21.8kcal/molHPMSDavidson and Kebarle, 1976, 2gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°25.5cal/mol*KHPMSDavidson and Kebarle, 1976, 2gas phase; M

Potassium ion (1+) + Uracil = (Potassium ion (1+) • Uracil)

By formula: K+ + C4H4N2O2 = (K+ • C4H4N2O2)

Quantity Value Units Method Reference Comment
ΔrH°24.1kcal/molCIDCCerda and Wesdemiotis, 1996RCD

Potassium ion (1+) + Pyrazine = (Potassium ion (1+) • Pyrazine)

By formula: K+ + C4H4N2 = (K+ • C4H4N2)

Quantity Value Units Method Reference Comment
ΔrH°16.1 ± 0.9kcal/molCIDTAmunugama and Rodgers, 2000RCD

Potassium ion (1+) + Pyrrole = (Potassium ion (1+) • Pyrrole)

By formula: K+ + C4H5N = (K+ • C4H5N)

Quantity Value Units Method Reference Comment
ΔrH°20.0 ± 1.0kcal/molCIDTHuang and Rodgers, 2002RCD

Potassium ion (1+) + Cytosine = (Potassium ion (1+) • Cytosine)

By formula: K+ + C4H5N3O = (K+ • C4H5N3O)

Quantity Value Units Method Reference Comment
ΔrH°26.3kcal/molCIDCCerda and Wesdemiotis, 1996RCD

Potassium ion (1+) + 1H-Imidazole, 1-methyl- = (Potassium ion (1+) • 1H-Imidazole, 1-methyl-)

By formula: K+ + C4H6N2 = (K+ • C4H6N2)

Quantity Value Units Method Reference Comment
ΔrH°28.0 ± 0.6kcal/molCIDTHuang and Rodgers, 2002RCD

Potassium ion (1+) + 1H-Pyrazole, 1-methyl- = (Potassium ion (1+) • 1H-Pyrazole, 1-methyl-)

By formula: K+ + C4H6N2 = (K+ • C4H6N2)

Quantity Value Units Method Reference Comment
ΔrH°22.5 ± 0.9kcal/molCIDTHuang and Rodgers, 2002RCD

Potassium ion (1+) + N,N-Dimethylacetamide = (Potassium ion (1+) • N,N-Dimethylacetamide)

By formula: K+ + C4H9NO = (K+ • C4H9NO)

Quantity Value Units Method Reference Comment
ΔrH°29.0kcal/molCIDTKlassen, Anderson, et al., 1996RCD
ΔrH°31.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°23.cal/mol*KHPMSSunner, 1984gas phase; M

(Potassium ion (1+) • N,N-Dimethylacetamide) + N,N-Dimethylacetamide = (Potassium ion (1+) • 2N,N-Dimethylacetamide)

By formula: (K+ • C4H9NO) + C4H9NO = (K+ • 2C4H9NO)

Quantity Value Units Method Reference Comment
ΔrH°24.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°24.cal/mol*KHPMSSunner, 1984gas phase; M

(Potassium ion (1+) • 2N,N-Dimethylacetamide) + N,N-Dimethylacetamide = (Potassium ion (1+) • 3N,N-Dimethylacetamide)

By formula: (K+ • 2C4H9NO) + C4H9NO = (K+ • 3C4H9NO)

Quantity Value Units Method Reference Comment
ΔrH°18.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°24.cal/mol*KHPMSSunner, 1984gas phase; M

Potassium ion (1+) + Ethyl ether = (Potassium ion (1+) • Ethyl ether)

By formula: K+ + C4H10O = (K+ • C4H10O)

Quantity Value Units Method Reference Comment
ΔrH°22.3kcal/molHPMSDavidson and Kebarle, 1976, 2gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°24.7cal/mol*KHPMSDavidson and Kebarle, 1976, 2gas phase; M

Potassium ion (1+) + Ethane, 1,2-dimethoxy- = (Potassium ion (1+) • Ethane, 1,2-dimethoxy-)

By formula: K+ + C4H10O2 = (K+ • C4H10O2)

Bond type: Polydentate bonding in non-hydrogen-bonded positive ions

Quantity Value Units Method Reference Comment
ΔrH°28.4 ± 1.0kcal/molCIDTRodgers and Armentrout, 2000RCD
ΔrH°30.8kcal/molHPMSDavidson and Kebarle, 1976, 3gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°26.8cal/mol*KHPMSDavidson and Kebarle, 1976, 3gas phase; M

(Potassium ion (1+) • Ethane, 1,2-dimethoxy-) + Ethane, 1,2-dimethoxy- = (Potassium ion (1+) • 2Ethane, 1,2-dimethoxy-)

By formula: (K+ • C4H10O2) + C4H10O2 = (K+ • 2C4H10O2)

Quantity Value Units Method Reference Comment
ΔrH°21.3 ± 2.9kcal/molCIDTRodgers and Armentrout, 2000RCD

Potassium ion (1+) + Pyridine = (Potassium ion (1+) • Pyridine)

By formula: K+ + C5H5N = (K+ • C5H5N)

Quantity Value Units Method Reference Comment
ΔrH°21.6 ± 0.9kcal/molCIDTAmunugama and Rodgers, 2000RCD
ΔrH°20.7kcal/molHPMSDavidson and Kebarle, 1976, 2gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°18.6cal/mol*KHPMSDavidson and Kebarle, 1976, 2gas phase; M

Potassium ion (1+) + Guanine = (Potassium ion (1+) • Guanine)

By formula: K+ + C5H5N5O = (K+ • C5H5N5O)

Quantity Value Units Method Reference Comment
ΔrH°28.0kcal/molCIDCCerda and Wesdemiotis, 1996RCD

Potassium ion (1+) + Adenine = (Potassium ion (1+) • Adenine)

By formula: K+ + C5H5N5 = (K+ • C5H5N5)

Quantity Value Units Method Reference Comment
ΔrH°25.3kcal/molCIDCCerda and Wesdemiotis, 1996RCD

Potassium ion (1+) + Thymine = (Potassium ion (1+) • Thymine)

By formula: K+ + C5H6N2O2 = (K+ • C5H6N2O2)

Quantity Value Units Method Reference Comment
ΔrH°24.4kcal/molCIDCCerda and Wesdemiotis, 1996RCD

Potassium ion (1+) + 3-Aminopyridine = (Potassium ion (1+) • 3-Aminopyridine)

By formula: K+ + C5H6N2 = (K+ • C5H6N2)

Quantity Value Units Method Reference Comment
ΔrH°24.2 ± 0.8kcal/molCIDTRodgers, 2001RCD

Potassium ion (1+) + 4-Aminopyridine = (Potassium ion (1+) • 4-Aminopyridine)

By formula: K+ + C5H6N2 = (K+ • C5H6N2)

Quantity Value Units Method Reference Comment
ΔrH°26.0 ± 0.8kcal/molCIDTRodgers, 2001RCD

Potassium ion (1+) + 2-Aminopyridine = (Potassium ion (1+) • 2-Aminopyridine)

By formula: K+ + C5H6N2 = (K+ • C5H6N2)

Quantity Value Units Method Reference Comment
ΔrH°24.7 ± 0.9kcal/molCIDTRodgers, 2001RCD

Potassium ion (1+) + 1H-Pyrrole, 1-methyl- = (Potassium ion (1+) • 1H-Pyrrole, 1-methyl-)

By formula: K+ + C5H7N = (K+ • C5H7N)

Quantity Value Units Method Reference Comment
ΔrH°21.0 ± 1.5kcal/molCIDTHuang and Rodgers, 2002RCD

Potassium ion (1+) + Benzene, fluoro- = (Potassium ion (1+) • Benzene, fluoro-)

By formula: K+ + C6H5F = (K+ • C6H5F)

Quantity Value Units Method Reference Comment
ΔrH°13.2 ± 0.7kcal/molCIDTAmunugama and Rodgers, 2002RCD

(Potassium ion (1+) • Benzene, fluoro-) + Benzene, fluoro- = (Potassium ion (1+) • 2Benzene, fluoro-)

By formula: (K+ • C6H5F) + C6H5F = (K+ • 2C6H5F)

Quantity Value Units Method Reference Comment
ΔrH°12.0 ± 0.7kcal/molCIDTAmunugama and Rodgers, 2002RCD

Potassium ion (1+) + Phenol = (Potassium ion (1+) • Phenol)

By formula: K+ + C6H6O = (K+ • C6H6O)

Quantity Value Units Method Reference Comment
ΔrH°17.7 ± 0.8kcal/molCIDTAmunugama and Rodgers, 2002, 2RCD

(Potassium ion (1+) • Phenol) + Phenol = (Potassium ion (1+) • 2Phenol)

By formula: (K+ • C6H6O) + C6H6O = (K+ • 2C6H6O)

Quantity Value Units Method Reference Comment
ΔrH°16.3 ± 0.8kcal/molCIDTAmunugama and Rodgers, 2002, 2RCD

Potassium ion (1+) + Benzene = (Potassium ion (1+) • Benzene)

By formula: K+ + C6H6 = (K+ • C6H6)

Quantity Value Units Method Reference Comment
ΔrH°17.5 ± 0.9kcal/molCIDTAmicangelo and Armentrout, 2000RCD
ΔrH°19.2kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°24.6cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; M

(Potassium ion (1+) • Benzene) + Benzene = (Potassium ion (1+) • 2Benzene)

By formula: (K+ • C6H6) + C6H6 = (K+ • 2C6H6)

Quantity Value Units Method Reference Comment
ΔrH°16.1 ± 1.7kcal/molCIDTAmicangelo and Armentrout, 2000RCD
ΔrH°18.8kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°33.9cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; M

(Potassium ion (1+) • 2Benzene) + Benzene = (Potassium ion (1+) • 3Benzene)

By formula: (K+ • 2C6H6) + C6H6 = (K+ • 3C6H6)

Quantity Value Units Method Reference Comment
ΔrH°14.5kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°32.7cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; M

(Potassium ion (1+) • 3Benzene) + Benzene = (Potassium ion (1+) • 4Benzene)

By formula: (K+ • 3C6H6) + C6H6 = (K+ • 4C6H6)

Quantity Value Units Method Reference Comment
ΔrH°12.6kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°41.4cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; M

(Potassium ion (1+) • Benzene) + Water = (Potassium ion (1+) • Water • Benzene)

By formula: (K+ • C6H6) + H2O = (K+ • H2O • C6H6)

Quantity Value Units Method Reference Comment
ΔrH°18.1kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+ C6H6)C6H6; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
ΔrS°29.9cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+ C6H6)C6H6; Searles and Kebarle, 1969; M

(Potassium ion (1+) • 2Benzene) + Water = (Potassium ion (1+) • Water • 2Benzene)

By formula: (K+ • 2C6H6) + H2O = (K+ • H2O • 2C6H6)

Quantity Value Units Method Reference Comment
ΔrH°13.7kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+ 2H2O)C6H6; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
ΔrS°26.1cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+ 2H2O)C6H6; Searles and Kebarle, 1969; M

(Potassium ion (1+) • Benzene • Water) + Benzene = (Potassium ion (1+) • 2Benzene • Water)

By formula: (K+ • C6H6 • H2O) + C6H6 = (K+ • 2C6H6 • H2O)

Quantity Value Units Method Reference Comment
ΔrH°14.4kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle,switching reaction(K+ 3H2O)C6H6, Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
ΔrS°30.1cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle,switching reaction(K+ 3H2O)C6H6, Searles and Kebarle, 1969; M

(Potassium ion (1+) • Benzene • 2Water) + Benzene = (Potassium ion (1+) • 2Benzene • 2Water)

By formula: (K+ • C6H6 • 2H2O) + C6H6 = (K+ • 2C6H6 • 2H2O)

Quantity Value Units Method Reference Comment
ΔrH°12.8kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+ 3H2O)C6H6; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
ΔrS°33.7cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+ 3H2O)C6H6; Searles and Kebarle, 1969; M

Potassium ion (1+) + Aniline = (Potassium ion (1+) • Aniline)

By formula: K+ + C6H7N = (K+ • C6H7N)

Quantity Value Units Method Reference Comment
ΔrH°22.8kcal/molHPMSDavidson and Kebarle, 1976, 2gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°23.7cal/mol*KHPMSDavidson and Kebarle, 1976, 2gas phase; M

Potassium ion (1+) + Pyridine, 4-methyl- = (Potassium ion (1+) • Pyridine, 4-methyl-)

By formula: K+ + C6H7N = (K+ • C6H7N)

Quantity Value Units Method Reference Comment
ΔrH°23.6 ± 1.0kcal/molCIDTRodgers, 2001, 2RCD

Potassium ion (1+) + Pyridine, 3-methyl- = (Potassium ion (1+) • Pyridine, 3-methyl-)

By formula: K+ + C6H7N = (K+ • C6H7N)

Quantity Value Units Method Reference Comment
ΔrH°23.8 ± 0.8kcal/molCIDTRodgers, 2001, 2RCD

Potassium ion (1+) + Pyridine, 2-methyl- = (Potassium ion (1+) • Pyridine, 2-methyl-)

By formula: K+ + C6H7N = (K+ • C6H7N)

Quantity Value Units Method Reference Comment
ΔrH°23.4 ± 0.8kcal/molCIDTRodgers, 2001, 2RCD

Potassium ion (1+) + Anisole = (Potassium ion (1+) • Anisole)

By formula: K+ + C7H8O = (K+ • C7H8O)

Quantity Value Units Method Reference Comment
ΔrH°18.9 ± 0.7kcal/molCIDTAmunugama and Rodgers, 2003RCD

(Potassium ion (1+) • Anisole) + Anisole = (Potassium ion (1+) • 2Anisole)

By formula: (K+ • C7H8O) + C7H8O = (K+ • 2C7H8O)

Quantity Value Units Method Reference Comment
ΔrH°16.7 ± 0.6kcal/molCIDTAmunugama and Rodgers, 2003RCD

Potassium ion (1+) + Toluene = (Potassium ion (1+) • Toluene)

By formula: K+ + C7H8 = (K+ • C7H8)

Quantity Value Units Method Reference Comment
ΔrH°19.1 ± 1.2kcal/molCIDTAmunugama and Rodgers, 2002, 3RCD

(Potassium ion (1+) • Toluene) + Toluene = (Potassium ion (1+) • 2Toluene)

By formula: (K+ • C7H8) + C7H8 = (K+ • 2C7H8)

Quantity Value Units Method Reference Comment
ΔrH°17.9 ± 1.1kcal/molCIDTAmunugama and Rodgers, 2002, 3RCD

Potassium ion (1+) + 12-Crown-4 = (Potassium ion (1+) • 12-Crown-4)

By formula: K+ + C8H16O4 = (K+ • C8H16O4)

Quantity Value Units Method Reference Comment
ΔrH°45.2 ± 2.9kcal/molCIDTRodgers and Armentrout, 2000RCD

Potassium ion (1+) + 15-Crown-5 = (Potassium ion (1+) • 15-Crown-5)

By formula: K+ + C10H20O5 = (K+ • C10H20O5)

Quantity Value Units Method Reference Comment
ΔrH°49.0 ± 3.6kcal/molCIDTRodgers and Armentrout, 2000RCD

Potassium ion (1+) + 1,4,7,10,13,16-Hexaoxacyclooctadecane = (Potassium ion (1+) • 1,4,7,10,13,16-Hexaoxacyclooctadecane)

By formula: K+ + C12H24O6 = (K+ • C12H24O6)

Quantity Value Units Method Reference Comment
ΔrH°56.2 ± 3.1kcal/molCIDTRodgers and Armentrout, 2000RCD

Potassium ion (1+) + potassium chloride = (Potassium ion (1+) • potassium chloride)

By formula: K+ + ClK = (K+ • ClK)

Quantity Value Units Method Reference Comment
ΔrH°41.2kcal/molMSChupka, 1959gas phase; Knudsen cell; M
Quantity Value Units Method Reference Comment
ΔrS°19.6cal/mol*KMSChupka, 1959gas phase; Knudsen cell; M

Potassium ion (1+) + Water = (Potassium ion (1+) • Water)

By formula: K+ + H2O = (K+ • H2O)

Quantity Value Units Method Reference Comment
ΔrH°16.9kcal/molHPMSDavidson and Kebarle, 1976gas phase; M
ΔrH°16. ± 3.kcal/molHPMSBlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M
ΔrH°19.4 ± 2.5kcal/molMSBurdett and Hayhurst, 1982gas phase; flame source, about 1600 K; M
ΔrH°17.9kcal/molHPMSSearles and Kebarle, 1969gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°19.9cal/mol*KHPMSDavidson and Kebarle, 1976gas phase; M
ΔrS°23.cal/mol*KN/ABlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M
ΔrS°21.3cal/mol*KMSBurdett and Hayhurst, 1982gas phase; flame source, about 1600 K; M
ΔrS°21.6cal/mol*KHPMSSearles and Kebarle, 1969gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
9.0300.HPMSBlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M
0.4840.MSChupka, 1959gas phase; Knudsen cell, 840+-50K; M

(Potassium ion (1+) • Water) + Methyl Alcohol = (Potassium ion (1+) • Methyl Alcohol • Water)

By formula: (K+ • H2O) + CH4O = (K+ • CH4O • H2O)

Quantity Value Units Method Reference Comment
ΔrH°19.6kcal/molHPMSEvans and Keesee, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°32.5cal/mol*KHPMSEvans and Keesee, 1991gas phase; M

(Potassium ion (1+) • 2Water) + Methyl Alcohol = (Potassium ion (1+) • Methyl Alcohol • 2Water)

By formula: (K+ • 2H2O) + CH4O = (K+ • CH4O • 2H2O)

Quantity Value Units Method Reference Comment
ΔrH°16.6kcal/molHPMSEvans and Keesee, 1991gas phase; switching reaction,n(K+)3H2O; M
Quantity Value Units Method Reference Comment
ΔrS°30.9cal/mol*KHPMSEvans and Keesee, 1991gas phase; switching reaction,n(K+)3H2O; M

(Potassium ion (1+) • Water • Methyl Alcohol) + Water = (Potassium ion (1+) • 2Water • Methyl Alcohol)

By formula: (K+ • H2O • CH4O) + H2O = (K+ • 2H2O • CH4O)

Quantity Value Units Method Reference Comment
ΔrH°13.1kcal/molHPMSEvans and Keesee, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°22.6cal/mol*KHPMSEvans and Keesee, 1991gas phase; M

(Potassium ion (1+) • Water) + Benzene = (Potassium ion (1+) • Benzene • Water)

By formula: (K+ • H2O) + C6H6 = (K+ • C6H6 • H2O)

Quantity Value Units Method Reference Comment
ΔrH°16.8kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)2H2O; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
ΔrS°27.1cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)2H2O; Searles and Kebarle, 1969; M

(Potassium ion (1+) • 2Water) + Benzene = (Potassium ion (1+) • Benzene • 2Water)

By formula: (K+ • 2H2O) + C6H6 = (K+ • C6H6 • 2H2O)

Quantity Value Units Method Reference Comment
ΔrH°13.4kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)3H2O; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
ΔrS°24.3cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)3H2O; Searles and Kebarle, 1969; M

(Potassium ion (1+) • 3Water) + Benzene = (Potassium ion (1+) • Benzene • 3Water)

By formula: (K+ • 3H2O) + C6H6 = (K+ • C6H6 • 3H2O)

Quantity Value Units Method Reference Comment
ΔrH°12.6kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)4H2O; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
ΔrS°27.6cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)4H2O; Searles and Kebarle, 1969; M

(Potassium ion (1+) • Water • Benzene) + Water = (Potassium ion (1+) • 2Water • Benzene)

By formula: (K+ • H2O • C6H6) + H2O = (K+ • 2H2O • C6H6)

Quantity Value Units Method Reference Comment
ΔrH°12.7kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle,switching reaction(K+)3H2O; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
ΔrS°21.4cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle,switching reaction(K+)3H2O; Searles and Kebarle, 1969; M

(Potassium ion (1+) • Water • 2Benzene) + Water = (Potassium ion (1+) • 2Water • 2Benzene)

By formula: (K+ • H2O • 2C6H6) + H2O = (K+ • 2H2O • 2C6H6)

Quantity Value Units Method Reference Comment
ΔrH°12.2kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle(K+ 3H2O)C6H6; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
ΔrS°29.4cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle(K+ 3H2O)C6H6; Searles and Kebarle, 1969; M

(Potassium ion (1+) • 2Water • Benzene) + Water = (Potassium ion (1+) • 3Water • Benzene)

By formula: (K+ • 2H2O • C6H6) + H2O = (K+ • 3H2O • C6H6)

Quantity Value Units Method Reference Comment
ΔrH°11.8kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle,switching reaction(K+)4H2O; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
ΔrS°26.3cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle,switching reaction(K+)4H2O; Searles and Kebarle, 1969; M

(Potassium ion (1+) • Water) + Water = (Potassium ion (1+) • 2Water)

By formula: (K+ • H2O) + H2O = (K+ • 2H2O)

Quantity Value Units Method Reference Comment
ΔrH°16. ± 3.kcal/molHPMSBlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M
ΔrH°16.1kcal/molHPMSSearles and Kebarle, 1969gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°23.cal/mol*KN/ABlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M
ΔrS°24.2cal/mol*KHPMSSearles and Kebarle, 1969gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
9.2300.HPMSBlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M

(Potassium ion (1+) • 2Water) + Water = (Potassium ion (1+) • 3Water)

By formula: (K+ • 2H2O) + H2O = (K+ • 3H2O)

Quantity Value Units Method Reference Comment
ΔrH°13.0kcal/molES/HPMSBlades, Klassen, et al., 1996gas phase; M
ΔrH°14. ± 3.kcal/molHPMSBlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M
ΔrH°13.2kcal/molHPMSSearles and Kebarle, 1969gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°22.5cal/mol*KES/HPMSBlades, Klassen, et al., 1996gas phase; M
ΔrS°23.cal/mol*KN/ABlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M
ΔrS°23.0cal/mol*KHPMSSearles and Kebarle, 1969gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°6.3kcal/molES/HPMSBlades, Klassen, et al., 1996gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
6.6300.HPMSBlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M

(Potassium ion (1+) • 3Water) + Water = (Potassium ion (1+) • 4Water)

By formula: (K+ • 3H2O) + H2O = (K+ • 4H2O)

Quantity Value Units Method Reference Comment
ΔrH°13. ± 3.kcal/molHPMSBlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M
ΔrH°11.8kcal/molHPMSSearles and Kebarle, 1969gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°23.cal/mol*KN/ABlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M
ΔrS°24.7cal/mol*KHPMSSearles and Kebarle, 1969gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
5.9300.HPMSBlades, Jayaweera, et al., 1990gas phase; electospray, Entropy change calculated or estimated; M

(Potassium ion (1+) • 4Water) + Water = (Potassium ion (1+) • 5Water)

By formula: (K+ • 4H2O) + H2O = (K+ • 5H2O)

Quantity Value Units Method Reference Comment
ΔrH°10.7kcal/molHPMSSearles and Kebarle, 1969gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°25.2cal/mol*KHPMSSearles and Kebarle, 1969gas phase; M

(Potassium ion (1+) • 5Water) + Water = (Potassium ion (1+) • 6Water)

By formula: (K+ • 5H2O) + H2O = (K+ • 6H2O)

Quantity Value Units Method Reference Comment
ΔrH°10.0kcal/molHPMSSearles and Kebarle, 1969gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°25.7cal/mol*KHPMSSearles and Kebarle, 1969gas phase; M

Potassium ion (1+) + Hydrogen = (Potassium ion (1+) • Hydrogen)

By formula: K+ + H2 = (K+ • H2)

Quantity Value Units Method Reference Comment
ΔrH°1.86kcal/molSIDTBushnell, Kemper, et al., 1994gas phase; ΔrH(0K) = 1.45 kcal/mol; M
Quantity Value Units Method Reference Comment
ΔrS°13.5cal/mol*KSIDTBushnell, Kemper, et al., 1994gas phase; ΔrH(0K) = 1.45 kcal/mol; M

(Potassium ion (1+) • Hydrogen) + Hydrogen = (Potassium ion (1+) • 2Hydrogen)

By formula: (K+ • H2) + H2 = (K+ • 2H2)

Quantity Value Units Method Reference Comment
ΔrH°1.47kcal/molSIDTBushnell, Kemper, et al., 1994gas phase; ΔrH(0K) = 1.35 kcal/mol; M
Quantity Value Units Method Reference Comment
ΔrS°11.2cal/mol*KSIDTBushnell, Kemper, et al., 1994gas phase; ΔrH(0K) = 1.35 kcal/mol; M

Potassium ion (1+) + Ammonia = (Potassium ion (1+) • Ammonia)

By formula: K+ + H3N = (K+ • H3N)

Quantity Value Units Method Reference Comment
ΔrH°20.1kcal/molHPMSCastleman, 1978gas phase; M
ΔrH°17.8kcal/molHPMSDavidson and Kebarle, 1976, 2gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°23.0cal/mol*KHPMSCastleman, 1978gas phase; M
ΔrS°28.0cal/mol*KHPMSDavidson and Kebarle, 1976, 2gas phase; M

(Potassium ion (1+) • Ammonia) + Ammonia = (Potassium ion (1+) • 2Ammonia)

By formula: (K+ • H3N) + H3N = (K+ • 2H3N)

Quantity Value Units Method Reference Comment
ΔrH°16.3kcal/molHPMSCastleman, 1978gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°22.8cal/mol*KHPMSCastleman, 1978gas phase; M

(Potassium ion (1+) • 2Ammonia) + Ammonia = (Potassium ion (1+) • 3Ammonia)

By formula: (K+ • 2H3N) + H3N = (K+ • 3H3N)

Quantity Value Units Method Reference Comment
ΔrH°13.5kcal/molHPMSCastleman, 1978gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°27.7cal/mol*KHPMSCastleman, 1978gas phase; M

(Potassium ion (1+) • 3Ammonia) + Ammonia = (Potassium ion (1+) • 4Ammonia)

By formula: (K+ • 3H3N) + H3N = (K+ • 4H3N)

Quantity Value Units Method Reference Comment
ΔrH°11.6kcal/molHPMSCastleman, 1978gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°25.4cal/mol*KHPMSCastleman, 1978gas phase; M

Potassium ion (1+) + helium = (Potassium ion (1+) • helium)

By formula: K+ + He = (K+ • He)

Quantity Value Units Method Reference Comment
ΔrH°0.58kcal/molSCATTERINGGislason, 1984gas phase; M
ΔrH°0.53kcal/molIMobViehland, 1984gas phase; M
ΔrH°0.53kcal/molIMobTakebe, 1983gas phase; M
ΔrH°0.57kcal/molIMobRobson and Kumar, 1973gas phase; M

(Potassium ion (1+) • 2potassium) + potassium = (Potassium ion (1+) • 3potassium)

By formula: (K+ • 2K) + K = (K+ • 3K)

Quantity Value Units Method Reference Comment
ΔrH°10.4kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

(Potassium ion (1+) • 3potassium) + potassium = (Potassium ion (1+) • 4potassium)

By formula: (K+ • 3K) + K = (K+ • 4K)

Quantity Value Units Method Reference Comment
ΔrH°15.5kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

(Potassium ion (1+) • 4potassium) + potassium = (Potassium ion (1+) • 5potassium)

By formula: (K+ • 4K) + K = (K+ • 5K)

Quantity Value Units Method Reference Comment
ΔrH°12.5kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

(Potassium ion (1+) • 5potassium) + potassium = (Potassium ion (1+) • 6potassium)

By formula: (K+ • 5K) + K = (K+ • 6K)

Quantity Value Units Method Reference Comment
ΔrH°17.3kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

(Potassium ion (1+) • 6potassium) + potassium = (Potassium ion (1+) • 7potassium)

By formula: (K+ • 6K) + K = (K+ • 7K)

Quantity Value Units Method Reference Comment
ΔrH°13.4kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

(Potassium ion (1+) • 7potassium) + potassium = (Potassium ion (1+) • 8potassium)

By formula: (K+ • 7K) + K = (K+ • 8K)

Quantity Value Units Method Reference Comment
ΔrH°20.8kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

(Potassium ion (1+) • 8potassium) + potassium = (Potassium ion (1+) • 9potassium)

By formula: (K+ • 8K) + K = (K+ • 9K)

Quantity Value Units Method Reference Comment
ΔrH°11.5kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

(Potassium ion (1+) • 9potassium) + potassium = (Potassium ion (1+) • 10potassium)

By formula: (K+ • 9K) + K = (K+ • 10K)

Quantity Value Units Method Reference Comment
ΔrH°13.1kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

(Potassium ion (1+) • 10potassium) + potassium = (Potassium ion (1+) • 11potassium)

By formula: (K+ • 10K) + K = (K+ • 11K)

Quantity Value Units Method Reference Comment
ΔrH°12.9kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

(Potassium ion (1+) • 11potassium) + potassium = (Potassium ion (1+) • 12potassium)

By formula: (K+ • 11K) + K = (K+ • 12K)

Quantity Value Units Method Reference Comment
ΔrH°13.4kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

(Potassium ion (1+) • 12potassium) + potassium = (Potassium ion (1+) • 13potassium)

By formula: (K+ • 12K) + K = (K+ • 13K)

Quantity Value Units Method Reference Comment
ΔrH°13.4kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

(Potassium ion (1+) • 13potassium) + potassium = (Potassium ion (1+) • 14potassium)

By formula: (K+ • 13K) + K = (K+ • 14K)

Quantity Value Units Method Reference Comment
ΔrH°14.9kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

(Potassium ion (1+) • 14potassium) + potassium = (Potassium ion (1+) • 15potassium)

By formula: (K+ • 14K) + K = (K+ • 15K)

Quantity Value Units Method Reference Comment
ΔrH°13.1kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

(Potassium ion (1+) • 15potassium) + potassium = (Potassium ion (1+) • 16potassium)

By formula: (K+ • 15K) + K = (K+ • 16K)

Quantity Value Units Method Reference Comment
ΔrH°15.0kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

(Potassium ion (1+) • 16potassium) + potassium = (Potassium ion (1+) • 17potassium)

By formula: (K+ • 16K) + K = (K+ • 17K)

Quantity Value Units Method Reference Comment
ΔrH°15.5kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

(Potassium ion (1+) • 17potassium) + potassium = (Potassium ion (1+) • 18potassium)

By formula: (K+ • 17K) + K = (K+ • 18K)

Quantity Value Units Method Reference Comment
ΔrH°16.1kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

(Potassium ion (1+) • 18potassium) + potassium = (Potassium ion (1+) • 19potassium)

By formula: (K+ • 18K) + K = (K+ • 19K)

Quantity Value Units Method Reference Comment
ΔrH°15.7kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

(Potassium ion (1+) • 19potassium) + potassium = (Potassium ion (1+) • 20potassium)

By formula: (K+ • 19K) + K = (K+ • 20K)

Quantity Value Units Method Reference Comment
ΔrH°17.3kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

(Potassium ion (1+) • 20potassium) + potassium = (Potassium ion (1+) • 21potassium)

By formula: (K+ • 20K) + K = (K+ • 21K)

Quantity Value Units Method Reference Comment
ΔrH°12.9kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

(Potassium ion (1+) • 21potassium) + potassium = (Potassium ion (1+) • 22potassium)

By formula: (K+ • 21K) + K = (K+ • 22K)

Quantity Value Units Method Reference Comment
ΔrH°14.3kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

(Potassium ion (1+) • 22potassium) + potassium = (Potassium ion (1+) • 23potassium)

By formula: (K+ • 22K) + K = (K+ • 23K)

Quantity Value Units Method Reference Comment
ΔrH°13.6kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

(Potassium ion (1+) • 23potassium) + potassium = (Potassium ion (1+) • 24potassium)

By formula: (K+ • 23K) + K = (K+ • 24K)

Quantity Value Units Method Reference Comment
ΔrH°14.8kcal/molPDissBrechignac, Cahuzac, et al., 1990gas phase; M

Potassium ion (1+) + K2O4S = (Potassium ion (1+) • K2O4S)

By formula: K+ + K2O4S = (K+ • K2O4S)

Quantity Value Units Method Reference Comment
ΔrH°38.kcal/molMSKudin, Gusarov, et al., 1973gas phase; Knudsen cell; M

Potassium ion (1+) + Krypton = (Potassium ion (1+) • Krypton)

By formula: K+ + Kr = (K+ • Kr)

Quantity Value Units Method Reference Comment
ΔrH°3.21kcal/molIMobGatland, 1984gas phase; M
ΔrH°2.89kcal/molSCATTERINGGislason, 1984gas phase; M
ΔrH°2.94kcal/molIMobViehland, 1984gas phase; M
ΔrH°3.71kcal/molIMobTakebe, 1983gas phase; M

Potassium ion (1+) + Nitrogen = (Potassium ion (1+) • Nitrogen)

By formula: K+ + N2 = (K+ • N2)

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
1.0310.DTBeyer and Keller, 1971gas phase; low E/N; M

Potassium ion (1+) + neon = (Potassium ion (1+) • neon)

By formula: K+ + Ne = (K+ • Ne)

Quantity Value Units Method Reference Comment
ΔrH°1.09kcal/molSCATTERINGGislason, 1984gas phase; M
ΔrH°0.92kcal/molIMobViehland, 1984gas phase; M
ΔrH°0.95kcal/molIMobTakebe, 1983gas phase; M
ΔrH°0.99kcal/molIMobRobson and Kumar, 1973gas phase; M

Potassium ion (1+) + Xenon = (Potassium ion (1+) • Xenon)

By formula: K+ + Xe = (K+ • Xe)

Quantity Value Units Method Reference Comment
ΔrH°4.31kcal/molIMobGatland, 1984gas phase; M
ΔrH°3.78kcal/molSCATTERINGGislason, 1984gas phase; M
ΔrH°4.84kcal/molIMobViehland, 1984gas phase; M
ΔrH°5.33kcal/molIMobTakebe, 1983gas phase; M

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Ion clustering data, Notes

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

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [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]

Blades, Jayaweera, et al., 1990
Blades, A.T.; Jayaweera, P.; Ikonomou, M.G.; Kebarle, P., Studies of Alkaline - Earth and Transition - Metal M++ Gas - Phase Ion Chemistry, J. Chem. Phys., 1990, 92, 10, 5900, https://doi.org/10.1063/1.458360 . [all data]

Burdett and Hayhurst, 1982
Burdett, N.A.; Hayhurst, A.N., Hydration of gas phase ions and the measurement of boundary layer cooling during flame sampling into a mass spectrometer., J. Chem. Soc. Faraday Trans. 1, 1982, 78, 2997. [all data]

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]

Chupka, 1959
Chupka, W.A., Dissociation Energies of Some Gaseous Halide Complex Ions and the Hydrated Ion K(H2O)+, J. Chem. Phys., 1959, 40, 2, 458, https://doi.org/10.1063/1.1729974 . [all data]

Blades, Klassen, et al., 1996
Blades, A.T.; Klassen, J.S.; Kebarle, P., Determination of Ion-Solvent Equilibria in the Gas Phase. Hydration of Diprotonated Diamines and Bis(trimethylammonium) Alkanes, J. Am. Chem. Soc., 1996, 118, 49, 12437, https://doi.org/10.1021/ja962641t . [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, 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]

Rodgers and Armentrout, 2000
Rodgers, M.T.; Armentrout, P.B., Noncovalent Metal-Ligand Bond Energies as Studied by Threshold Collision-Induced Dissociation, Mass Spectrom. Rev., 2000, 19, 4, 215, https://doi.org/10.1002/1098-2787(200007)19:4<215::AID-MAS2>3.0.CO;2-X . [all data]

Davidson and Kebarle, 1976, 3
Davidson, W.R.; Kebarle, P., Binding Energies and Stabilities of Potassium Ion Complexes with Ethylene Diamine and Dimethoxyethane (Glyme) from Measurements of the Complexing Equilibria in the Gas Phase, Can. J. Chem., 1976, 54, 16, 2594, https://doi.org/10.1139/v76-368 . [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]

Gatland, 1984
Gatland, I.R., Swarms of Ions and Electrons in Gases, W. Lindinger, T. D. Mark and F. Howorka, eds. (Springer, New York, 1984, 1984, 44. [all data]

Gislason, 1984
Gislason, E.A., Quoted in I. R. Gatland in Swarms of Ions and Electrons in Gases, W. Lindinger, T. D. Mark and F. Howorka, eds. (Springer, New York, 1984, 1984, 44. [all data]

Viehland, 1984
Viehland, L.A., Interaction Potentials for Li+ - Rare - Gas Systems, Chem. Phys., 1984, 78, 2, 279, https://doi.org/10.1016/0301-0104(83)85114-3 . [all data]

Takebe, 1983
Takebe, M., The Generalized Mobility Curve for Alkali Ions in Rare Gases: Clustering Reactions and Mobility Curves, J. Chem. Phys., 1983, 78, 12, 7223, https://doi.org/10.1063/1.444763 . [all data]

Robson and Kumar, 1973
Robson, R.E.; Kumar, K., Mobility and Diffusion II. Dependence on Experimental Variables and Interaction Potential for Alkali Ions in Rare Gases, Aust. J. Phys., 1973, 26, 2, 187, https://doi.org/10.1071/PH730187 . [all data]

Kudin, Gusarov, et al., 1973
Kudin, L.S.; Gusarov, A.V.; Gorokhov, L.N., Mass Spectrometer Study of Equilibria Involving Ions. 1. Potassium Bromide and Sulfate, High Temp., 1973, 11, 50. [all data]

Castleman and Keesee, 1981
Castleman, A.W.; Keesee, R.G., Electron and Ion Swarms, Proc. Second Int. Swarm Seminar, L. G. Christoforou, ed. (Pergamon Press, New York), 1981, 189-201. [all data]

Keller and Beyer, 1971
Keller, G.E.; Beyer, R.A., Drift Tube Studies of Carbon Dioxide Clustering to Potassium and Sodium Ions, Bull. Am. Phys. Soc., 1971, 16, 214. [all data]

Bushnell, Kemper, et al., 1994
Bushnell, J.E.; Kemper, P.R.; Bowers, M.T., Na+/K+(H2)1,2 clusters: experiment, J. Phys. Chem., 1994, 98, 8, 2044, https://doi.org/10.1021/j100059a011 . [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]

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]

Amicangelo and Armentrout, 2000
Amicangelo, J.C.; Armentrout, P.B., Absolute Binding Energies of Alkali-Metal Cation Complexes with Benzene Determined by Threshold Collision-Induced Dissociation Experiments and Ab Initio Theory, J. Phys. Chem. A, 2000, 104, 48, 11420, https://doi.org/10.1021/jp002652f . [all data]

Amunugama and Rodgers, 2000
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Klassen, J.S.; Anderson, S.G.; Blades, A.T.; Kebarle, P., Reaction Enthalpies for M+L = M+ + L, Where M+ = Na+ and K+ and L = Acetamide, N-Methylacetamide, N,N-Dimethylacetamide, Glycine, and Glycylglycine, from Determinations of the Collision-Induced Dissociation Thresholds, J. Phys. Chem., 1996, 100, 33, 14218, https://doi.org/10.1021/jp9608382 . [all data]

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Huang, H.; Rodgers, M.T., Sigma versus Pi interactions in alkali metal ion binding to azoles: Threshold collision-induced dissociation and ab initio theory studies, J. Phys. Chem. A, 2002, 106, 16, 4277, https://doi.org/10.1021/jp013630b . [all data]

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Rodgers, M.T., Substituent Effects in the Binding of Alkali Metal Ions to Pyridines, Studied by Threshold Collision-Induced Dissociation and ab Initio Theory: The Aminopyridines, J. Phys. Chem. A, 2001, 105, 35, 8145, https://doi.org/10.1021/jp011555z . [all data]

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Amunugama, R.; Rodgers, M.T., The influence of substituents on cation-pi interactions. 4. Absolute binding energies of alkali metal cation - Phenol complexes determined by threshold collision-induced dissociation and theoretical studies, J. Phys. Chem. A, 2002, 106, 42, 9718, https://doi.org/10.1021/jp0211584 . [all data]

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Rodgers, M.T., Substituent Effects in the Binding of Alkali Metal Ions to Pyridines, Studied by Threshold Collision-Induced Dissociation and ab Initio Theory: The Methylpyridines, J. Phys. Chem. A, 2001, 105, 11, 2374, https://doi.org/10.1021/jp004055z . [all data]

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Amunugama, R.; Rodgers, M.T., Influence of substituents on cation-pi interactions - 5. Absolute binding energies of alkali metal cation-anisole complexes determined by threshold collision-induced dissociation and theoretical studies, Int. J. Mass Spectrom., 2003, 222, 1-3, 431, https://doi.org/10.1016/S1387-3806(02)00945-4 . [all data]

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Amunugama, R.; Rodgers, M.T., Influence of substituents on cation-pi interactions. 1. Absolute binding energies of alkali metal cation-toluene complexes determined by threshold collision-induced dissociation and theoretical studies, J. Phys. Chem. A, 2002, 106, 22, 5529, https://doi.org/10.1021/jp014307b . [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]

Beyer and Keller, 1971
Beyer, R.A.; Keller, G.E., The Clustering of Atmospheric Gases to Alkali Ions, Trans. Am. Geophys. Union, 1971, 52, 303. [all data]

Notes

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