Hydrogen

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Phase change data

Go To: Top, Gas phase ion energetics 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director

Quantity Value Units Method Reference Comment
Ttriple0.KN/ARoder, Childs, et al., 1973TRC
Ttriple13.95KN/AClusius and Weigand, 1940Uncertainty assigned by TRC = 0.06 K; see property X for dP/dT for c-l equil.; TRC
Ttriple13.96KN/AHenning and Otto, 1936Uncertainty assigned by TRC = 0.05 K; temperature measured with He gas thermometer; TRC
Quantity Value Units Method Reference Comment
Ptriple0.barN/ARoder, Childs, et al., 1973TRC
Ptriple0.0721barN/AHenning and Otto, 1936Uncertainty assigned by TRC = 0.0004 bar; TRC
Quantity Value Units Method Reference Comment
Tc33.18KN/AOnnes, Crommelin, et al., 1917Uncertainty assigned by TRC = 0.2 K; derived from P-V-T measurements; TRC
Quantity Value Units Method Reference Comment
Pc13.00barN/AOnnes, Crommelin, et al., 1917Uncertainty assigned by TRC = 0.0119 bar; derived from vapor pressure extrapolated to Tc; TRC
Quantity Value Units Method Reference Comment
ρc15.4mol/lN/AOnnes, Crommelin, et al., 1917Uncertainty assigned by TRC = 2. mol/l; by extrapolation of rectilinear diameter to Tc; TRC

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
21.01 to 32.273.5431499.3957.726van Itterbeek, Verbeke, et al., 1964Coefficents calculated by NIST from author's data.

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:

Gas phase ion energetics data

Go To: Top, Phase change 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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LL - Sharon G. Lias and Joel F. Liebman
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to H2+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)15.42593 ± 0.00005eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)422.3kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity394.7kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
15.425927EVALShiner, Gilligan, et al., 1993T = 0K; LL
15.425930EVALShiner, Gilligan, et al., 1993T = 0K; LL
15.425932 ± 0.000002SMcCormack, Gilligan, et al., 1989T = 0K; LL
15.429558 ± 0.00001LSGlab and Hessler, 1987T = 0K; LBLHLM
15.433174 ± 0.00001LSGlab and Hessler, 1987T = 0K; LBLHLM
15.425942 ± 0.00001LSGlab and Hessler, 1987T = 0K; LBLHLM
15.425932SEyler, Short, et al., 1986T = 0K; LBLHLM
15.425929SEyler, Short, et al., 1986T = 0K; LBLHLM
15.425930 ± 0.000027N/AEyler, Short, et al., 1986LBLHLM
15.5 ± 1.0SFarber, Srivastava, et al., 1982LBLHLM
15.98PEKimura, Katsumata, et al., 1981LLK
15.43PEBieri, Schmelzer, et al., 1980LLK
15.42589EVALHuber and Herzberg, 1979LLK
16. ± 1.EIFarber and Srivastava, 1977LLK
15.4PIRabalais, Debies, et al., 1974LLK
15.43PELee and Rabalais, 1974LLK
15.42589 ± 0.00005SHerzberg and Jungen, 1972LLK
15.4256 ± 0.0001STakezawa, 1970RDSH
15.38186 ± 0.00031PEAsbrink, 1970RDSH
15.44 ± 0.01EILossing and Semeluk, 1969RDSH
15.4256SHerzberg, 1969RDSH
15.431 ± 0.022TEVillarejo, 1968RDSH
15.439 ± 0.015PECollin and Natalis, 1968RDSH
15.43CICermak, 1968RDSH
15.37 ± 0.05EIKerwin, Marmet, et al., 1963RDSH
15.4269 ± 0.0016SBeutler and Junger, 1936RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
H+18.078 ± 0.003HPIPECOWeitzel, Mahnert, et al., 1994T = 0K; LL
H+18.0 ± 0.2HEICrowe and McConkey, 1973LLK
H+17.28 ± 0.16H-EILocht and Momigny, 1971LLK
H+17.3H-EICurran, LaboratoriesRDSH

De-protonation reactions

Hydrogen anion + Hydrogen cation = Hydrogen

By formula: H- + H+ = H2

Quantity Value Units Method Reference Comment
ΔrH°1675.3kJ/molN/AShiell, Hu, et al., 2000gas phase; Given: 139714.8±1 cm-1 at 0K, or 399.465±0.003 kcal/mol; B
ΔrH°1675.3kJ/molN/APratt, McCormack, et al., 1992gas phase; 399.46±0.01 kcal/mol at 0K; 0.94 correction, Gurvich, Veyts, et al.; B
ΔrH°1675.3kJ/molD-EALykke, Murray, et al., 1991gas phase; Reported: 6082.99±0.15 cm-1, or 0.754195(18) eV; B
Quantity Value Units Method Reference Comment
ΔrG°1649.3 ± 0.42kJ/molH-TSShiell, Hu, et al., 2000gas phase; Given: 139714.8±1 cm-1 at 0K, or 399.465±0.003 kcal/mol; B
ΔrG°1649.3kJ/molH-TSLykke, Murray, et al., 1991gas phase; Reported: 6082.99±0.15 cm-1, or 0.754195(18) eV; B

Ion clustering data

Go To: Top, Phase change data, Gas phase ion energetics 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 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. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

Ar+ + Hydrogen = (Ar+ • Hydrogen)

By formula: Ar+ + H2 = (Ar+ • H2)

Quantity Value Units Method Reference Comment
ΔrH°93.7kJ/molFAShul, Passarella, et al., 1987gas phase; switching reaction(Ar+)Ar, ΔrH>; Dehmer and Pratt, 1982

Formyl cation + Hydrogen = (Formyl cation • Hydrogen)

By formula: CHO+ + H2 = (CHO+ • H2)

Quantity Value Units Method Reference Comment
ΔrH°16.kJ/molPHPMSHiraoka and Kebarle, 1975gas phase
Quantity Value Units Method Reference Comment
ΔrS°85.8J/mol*KPHPMSHiraoka and Kebarle, 1975gas phase

CH5+ + Hydrogen = (CH5+ • Hydrogen)

By formula: CH5+ + H2 = (CH5+ • H2)

Quantity Value Units Method Reference Comment
ΔrH°7.87 ± 0.42kJ/molPHPMSHiraoka, Kudaka, et al., 1991gas phase
Quantity Value Units Method Reference Comment
ΔrS°50.6J/mol*KPHPMSHiraoka, Kudaka, et al., 1991gas phase

(CH5+ • Hydrogen) + Hydrogen = (CH5+ • 2Hydrogen)

By formula: (CH5+ • H2) + H2 = (CH5+ • 2H2)

Quantity Value Units Method Reference Comment
ΔrH°7.45 ± 0.42kJ/molPHPMSHiraoka, Kudaka, et al., 1991gas phase
Quantity Value Units Method Reference Comment
ΔrS°67.8J/mol*KPHPMSHiraoka, Kudaka, et al., 1991gas phase

(CH5+ • 2Hydrogen) + Hydrogen = (CH5+ • 3Hydrogen)

By formula: (CH5+ • 2H2) + H2 = (CH5+ • 3H2)

Quantity Value Units Method Reference Comment
ΔrH°6.74 ± 0.42kJ/molPHPMSHiraoka, Kudaka, et al., 1991gas phase
Quantity Value Units Method Reference Comment
ΔrS°94.6J/mol*KPHPMSHiraoka, Kudaka, et al., 1991gas phase

(CH5+ • 3Hydrogen) + Hydrogen = (CH5+ • 4Hydrogen)

By formula: (CH5+ • 3H2) + H2 = (CH5+ • 4H2)

Quantity Value Units Method Reference Comment
ΔrH°6.57 ± 0.42kJ/molPHPMSHiraoka, Kudaka, et al., 1991gas phase
Quantity Value Units Method Reference Comment
ΔrS°108.J/mol*KPHPMSHiraoka, Kudaka, et al., 1991gas phase

C3H7+ + Hydrogen = (C3H7+ • Hydrogen)

By formula: C3H7+ + H2 = (C3H7+ • H2)

Quantity Value Units Method Reference Comment
ΔrH°10.kJ/molPHPMSHiraoka and Kebarle, 1976gas phase; Entropy change calculated or estimated, DG<, ΔrH<
Quantity Value Units Method Reference Comment
ΔrS°84.J/mol*KN/AHiraoka and Kebarle, 1976gas phase; Entropy change calculated or estimated, DG<, ΔrH<

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
4.170.PHPMSHiraoka and Kebarle, 1976gas phase; Entropy change calculated or estimated, DG<, ΔrH<

(Cobalt ion (1+) • Methane) + Hydrogen = (Cobalt ion (1+) • Hydrogen • Methane)

By formula: (Co+ • CH4) + H2 = (Co+ • H2 • CH4)

Quantity Value Units Method Reference Comment
ΔrS°95.8J/mol*KSIDTKemper, Bushnell, et al., 1993gas phase; switching reaction(Co+).2H2, ΔrS(440 K); Kemper, Bushnell, et al., 1993, 2

Enthalpy of reaction

ΔrH° (kJ/mol) T (K) Method Reference Comment
73. (+3.,-0.) SIDTKemper, Bushnell, et al., 1993gas phase; switching reaction(Co+).2H2, ΔrS(440 K); Kemper, Bushnell, et al., 1993, 2

(Cobalt ion (1+) • Water) + Hydrogen = (Cobalt ion (1+) • Hydrogen • Water)

By formula: (Co+ • H2O) + H2 = (Co+ • H2 • H2O)

Quantity Value Units Method Reference Comment
ΔrS°103.J/mol*KSIDTKemper, Bushnell, et al., 1993gas phase; ΔrS(530 K)

Enthalpy of reaction

ΔrH° (kJ/mol) T (K) Method Reference Comment
83. (+3.,-0.) SIDTKemper, Bushnell, et al., 1993gas phase; ΔrS(530 K)

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

By formula: Co+ + H2 = (Co+ • H2)

Quantity Value Units Method Reference Comment
ΔrH°82. ± 4.kJ/molSIDTKemper, Bushnell, et al., 1993, 2gas phase; ΔrH(O K)=76.1 kJ/mol, ΔrS(300 K)=86.2 J/mol*K
Quantity Value Units Method Reference Comment
ΔrS°92.0J/mol*KSIDTKemper, Bushnell, et al., 1993, 2gas phase; ΔrH(O K)=76.1 kJ/mol, ΔrS(300 K)=86.2 J/mol*K

Enthalpy of reaction

ΔrH° (kJ/mol) T (K) Method Reference Comment
73.2 (+9.6,-0.) CIDHaynes and Armentrout, 1996gas phase; guided ion beam CID

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

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

Quantity Value Units Method Reference Comment
ΔrH°75. ± 3.kJ/molSIDTKemper, Bushnell, et al., 1993, 2gas phase; ΔrH(0 K)=71.1 kJ/mol, ΔrS(300 K)=103. J/mol*K
Quantity Value Units Method Reference Comment
ΔrS°103.J/mol*KSIDTKemper, Bushnell, et al., 1993, 2gas phase; ΔrH(0 K)=71.1 kJ/mol, ΔrS(300 K)=103. J/mol*K

(Cobalt ion (1+) • 2Hydrogen) + Hydrogen = (Cobalt ion (1+) • 3Hydrogen)

By formula: (Co+ • 2H2) + H2 = (Co+ • 3H2)

Quantity Value Units Method Reference Comment
ΔrH°44. ± 2.kJ/molSIDTKemper, Bushnell, et al., 1993, 2gas phase; ΔrH(0 K)=40. kJ/mol, ΔrS(300 K)=85.8 J/mol*K
Quantity Value Units Method Reference Comment
ΔrS°85.8J/mol*KSIDTKemper, Bushnell, et al., 1993, 2gas phase; ΔrH(0 K)=40. kJ/mol, ΔrS(300 K)=85.8 J/mol*K

(Cobalt ion (1+) • 3Hydrogen) + Hydrogen = (Cobalt ion (1+) • 4Hydrogen)

By formula: (Co+ • 3H2) + H2 = (Co+ • 4H2)

Quantity Value Units Method Reference Comment
ΔrH°44. ± 3.kJ/molSIDTKemper, Bushnell, et al., 1993, 2gas phase; ΔrH(0 K)=40. kJ/mol, ΔrS(300 K)=105. J/mol*K
Quantity Value Units Method Reference Comment
ΔrS°101.J/mol*KSIDTKemper, Bushnell, et al., 1993, 2gas phase; ΔrH(0 K)=40. kJ/mol, ΔrS(300 K)=105. J/mol*K

(Cobalt ion (1+) • 4Hydrogen) + Hydrogen = (Cobalt ion (1+) • 5Hydrogen)

By formula: (Co+ • 4H2) + H2 = (Co+ • 5H2)

Quantity Value Units Method Reference Comment
ΔrH°22. ± 3.kJ/molSIDTKemper, Bushnell, et al., 1993, 2gas phase; ΔrH(0 K)=18. kJ/mol, ΔrS(300 K)=91.6 J/mol*K
Quantity Value Units Method Reference Comment
ΔrS°94.1J/mol*KSIDTKemper, Bushnell, et al., 1993, 2gas phase; ΔrH(0 K)=18. kJ/mol, ΔrS(300 K)=91.6 J/mol*K

(Cobalt ion (1+) • 5Hydrogen) + Hydrogen = (Cobalt ion (1+) • 6Hydrogen)

By formula: (Co+ • 5H2) + H2 = (Co+ • 6H2)

Quantity Value Units Method Reference Comment
ΔrH°20. ± 3.kJ/molSIDTKemper, Bushnell, et al., 1993, 2gas phase; ΔrH(0 K)=17. kJ/mol, ΔrS(300 K)=99.6 J/mol*K
Quantity Value Units Method Reference Comment
ΔrS°99.2J/mol*KSIDTKemper, Bushnell, et al., 1993, 2gas phase; ΔrH(0 K)=17. kJ/mol, ΔrS(300 K)=99.6 J/mol*K

(Cobalt ion (1+) • 6Hydrogen) + Hydrogen = (Cobalt ion (1+) • 7Hydrogen)

By formula: (Co+ • 6H2) + H2 = (Co+ • 7H2)

Quantity Value Units Method Reference Comment
ΔrH°6. ± 3.kJ/molSIDTKemper, Bushnell, et al., 1993, 2gas phase; ΔrH(0 K)=3. kJ/mol; ΔrS(300 K)=75.3 J/mol*K
Quantity Value Units Method Reference Comment
ΔrS°75.3J/mol*KSIDTKemper, Bushnell, et al., 1993, 2gas phase; ΔrH(0 K)=3. kJ/mol; ΔrS(300 K)=75.3 J/mol*K

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

By formula: Fe+ + H2 = (Fe+ • H2)

Quantity Value Units Method Reference Comment
ΔrH°52.3 ± 0.8kJ/molSIDTBushnell, Kemper, et al., 1995gas phase; ΔrH(0K) = 45.2 kJ/mol
Quantity Value Units Method Reference Comment
ΔrS°90.0J/mol*KSIDTBushnell, Kemper, et al., 1995gas phase; ΔrH(0K) = 45.2 kJ/mol

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

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

Quantity Value Units Method Reference Comment
ΔrH°71.1 ± 0.8kJ/molSIDTBushnell, Kemper, et al., 1995gas phase; ΔrH(0K) = 65.7 kJ/mol
Quantity Value Units Method Reference Comment
ΔrS°105.J/mol*KSIDTBushnell, Kemper, et al., 1995gas phase; ΔrH(0K) = 65.7 kJ/mol

(Iron ion (1+) • 2Hydrogen) + Hydrogen = (Iron ion (1+) • 3Hydrogen)

By formula: (Fe+ • 2H2) + H2 = (Fe+ • 3H2)

Quantity Value Units Method Reference Comment
ΔrH°35. ± 0.4kJ/molSIDTBushnell, Kemper, et al., 1995gas phase; ΔrH(0K) = 31. kJ/mol
Quantity Value Units Method Reference Comment
ΔrS°79.9J/mol*KSIDTBushnell, Kemper, et al., 1995gas phase; ΔrH(0K) = 31. kJ/mol

(Iron ion (1+) • 3Hydrogen) + Hydrogen = (Iron ion (1+) • 4Hydrogen)

By formula: (Fe+ • 3H2) + H2 = (Fe+ • 4H2)

Quantity Value Units Method Reference Comment
ΔrH°41. ± 0.4kJ/molSIDTBushnell, Kemper, et al., 1995gas phase; ΔrH(0K) = 36. kJ/mol
Quantity Value Units Method Reference Comment
ΔrS°104.J/mol*KSIDTBushnell, Kemper, et al., 1995gas phase; ΔrH(0K) = 36. kJ/mol

(Iron ion (1+) • 4Hydrogen) + Hydrogen = (Iron ion (1+) • 5Hydrogen)

By formula: (Fe+ • 4H2) + H2 = (Fe+ • 5H2)

Quantity Value Units Method Reference Comment
ΔrH°11. ± 0.4kJ/molSIDTBushnell, Kemper, et al., 1995gas phase; ΔrH(0K) = 9.2 kJ/mol
Quantity Value Units Method Reference Comment
ΔrS°74.9J/mol*KSIDTBushnell, Kemper, et al., 1995gas phase; ΔrH(0K) = 9.2 kJ/mol

(Iron ion (1+) • 5Hydrogen) + Hydrogen = (Iron ion (1+) • 6Hydrogen)

By formula: (Fe+ • 5H2) + H2 = (Fe+ • 6H2)

Quantity Value Units Method Reference Comment
ΔrH°11. ± 0.4kJ/molSIDTBushnell, Kemper, et al., 1995gas phase; ΔrH(0K) = 9.6 kJ/mol
Quantity Value Units Method Reference Comment
ΔrS°75.7J/mol*KSIDTBushnell, Kemper, et al., 1995gas phase; ΔrH(0K) = 9.6 kJ/mol

HN2+ + Hydrogen = (HN2+ • Hydrogen)

By formula: HN2+ + H2 = (HN2+ • H2)

Quantity Value Units Method Reference Comment
ΔrH°30.kJ/molPHPMSHiraoka, Saluja, et al., 1979gas phase
Quantity Value Units Method Reference Comment
ΔrS°94.6J/mol*KPHPMSHiraoka, Saluja, et al., 1979gas phase

(HN2+ • Hydrogen) + Hydrogen = (HN2+ • 2Hydrogen)

By formula: (HN2+ • H2) + H2 = (HN2+ • 2H2)

Quantity Value Units Method Reference Comment
ΔrH°7.5kJ/molPHPMSHiraoka, Saluja, et al., 1979gas phase
Quantity Value Units Method Reference Comment
ΔrS°71.J/mol*KPHPMSHiraoka, Saluja, et al., 1979gas phase

Hydroxyl anion + Hydrogen = (Hydroxyl anion • Hydrogen)

By formula: HO- + H2 = (HO- • H2)

Quantity Value Units Method Reference Comment
ΔrH°30.kJ/molCIDPaulson and Henchman, 1984gas phase; approximate value

HO2+ + Hydrogen = (HO2+ • Hydrogen)

By formula: HO2+ + H2 = (HO2+ • H2)

Quantity Value Units Method Reference Comment
ΔrH°52.3kJ/molPHPMSHiraoka, Saluja, et al., 1979gas phase
Quantity Value Units Method Reference Comment
ΔrS°92.J/mol*KPHPMSHiraoka, Saluja, et al., 1979gas phase

(HO2+ • Oxygen) + Hydrogen = (HO2+ • Hydrogen • Oxygen)

By formula: (HO2+ • O2) + H2 = (HO2+ • H2 • O2)

Quantity Value Units Method Reference Comment
ΔrH°17.kJ/molPHPMSHiraoka, Saluja, et al., 1979gas phase
Quantity Value Units Method Reference Comment
ΔrS°71.J/mol*KPHPMSHiraoka, Saluja, et al., 1979gas phase

H3+ + Hydrogen = (H3+ • Hydrogen)

By formula: H3+ + H2 = (H3+ • H2)

Quantity Value Units Method Reference Comment
ΔrH°29. ± 2.kJ/molAVGN/AAverage of 4 out of 11 values; Individual data points
Quantity Value Units Method Reference Comment
ΔrS°72.8 to 72.8J/mol*KRNGN/ARange of 6 values; Individual data points

(H3+ • Hydrogen) + Hydrogen = (H3+ • 2Hydrogen)

By formula: (H3+ • H2) + H2 = (H3+ • 2H2)

Quantity Value Units Method Reference Comment
ΔrH°14. ± 0.8kJ/molPHPMSHiraoka, 1987gas phase
ΔrH°13.kJ/molHPMSBeuhler, Ehrenson, et al., 1983gas phase
ΔrH°14.kJ/molHPMSBeuhler, Ehrenson, et al., 1983gas phase; deuterated
ΔrH°17.kJ/molPHPMSHiraoka and Kebarle, 1975, 2gas phase
ΔrH°7.5kJ/molHPMSBennett and Field, 1972gas phase; Entropy change is questionable
Quantity Value Units Method Reference Comment
ΔrS°72.8J/mol*KPHPMSHiraoka, 1987gas phase
ΔrS°70.7J/mol*KHPMSBeuhler, Ehrenson, et al., 1983gas phase
ΔrS°67.4J/mol*KHPMSBeuhler, Ehrenson, et al., 1983gas phase; deuterated
ΔrS°82.8J/mol*KPHPMSHiraoka and Kebarle, 1975, 2gas phase
ΔrS°45.2J/mol*KHPMSBennett and Field, 1972gas phase; Entropy change is questionable

(H3+ • 2Hydrogen) + Hydrogen = (H3+ • 3Hydrogen)

By formula: (H3+ • 2H2) + H2 = (H3+ • 3H2)

Quantity Value Units Method Reference Comment
ΔrH°13. ± 0.4kJ/molPHPMSHiraoka, 1987gas phase
ΔrH°16.kJ/molPHPMSHiraoka and Kebarle, 1975, 2gas phase
Quantity Value Units Method Reference Comment
ΔrS°77.4J/mol*KPHPMSHiraoka, 1987gas phase
ΔrS°84.5J/mol*KPHPMSHiraoka and Kebarle, 1975, 2gas phase

(H3+ • 3Hydrogen) + Hydrogen = (H3+ • 4Hydrogen)

By formula: (H3+ • 3H2) + H2 = (H3+ • 4H2)

Quantity Value Units Method Reference Comment
ΔrH°7.2 ± 0.4kJ/molPHPMSHiraoka, 1987gas phase
ΔrH°10.kJ/molPHPMSHiraoka and Kebarle, 1975, 2gas phase
Quantity Value Units Method Reference Comment
ΔrS°74.9J/mol*KPHPMSHiraoka, 1987gas phase
ΔrS°80.8J/mol*KPHPMSHiraoka and Kebarle, 1975, 2gas phase

(H3+ • 4Hydrogen) + Hydrogen = (H3+ • 5Hydrogen)

By formula: (H3+ • 4H2) + H2 = (H3+ • 5H2)

Quantity Value Units Method Reference Comment
ΔrH°6.9 ± 0.4kJ/molPHPMSHiraoka, 1987gas phase
Quantity Value Units Method Reference Comment
ΔrS°79.1J/mol*KPHPMSHiraoka, 1987gas phase

(H3+ • 5Hydrogen) + Hydrogen = (H3+ • 6Hydrogen)

By formula: (H3+ • 5H2) + H2 = (H3+ • 6H2)

Quantity Value Units Method Reference Comment
ΔrH°6.4 ± 0.4kJ/molPHPMSHiraoka, 1987gas phase
Quantity Value Units Method Reference Comment
ΔrS°83.7J/mol*KPHPMSHiraoka, 1987gas phase

(H3+ • 6Hydrogen) + Hydrogen = (H3+ • 7Hydrogen)

By formula: (H3+ • 6H2) + H2 = (H3+ • 7H2)

Quantity Value Units Method Reference Comment
ΔrH°3.7 ± 0.4kJ/molPHPMSHiraoka, 1987gas phase
Quantity Value Units Method Reference Comment
ΔrS°69.0J/mol*KPHPMSHiraoka, 1987gas phase

(H3+ • 7Hydrogen) + Hydrogen = (H3+ • 8Hydrogen)

By formula: (H3+ • 7H2) + H2 = (H3+ • 8H2)

Quantity Value Units Method Reference Comment
ΔrH°3.3 ± 0.4kJ/molPHPMSHiraoka, 1987gas phase
Quantity Value Units Method Reference Comment
ΔrS°74.9J/mol*KPHPMSHiraoka, 1987gas phase

(H3+ • 8Hydrogen) + Hydrogen = (H3+ • 9Hydrogen)

By formula: (H3+ • 8H2) + H2 = (H3+ • 9H2)

Quantity Value Units Method Reference Comment
ΔrH°2.6 ± 0.4kJ/molPHPMSHiraoka, 1987gas phase
Quantity Value Units Method Reference Comment
ΔrS°79.9J/mol*KPHPMSHiraoka, 1987gas phase

Hydronium cation + Hydrogen = (Hydronium cation • Hydrogen)

By formula: H3O+ + H2 = (H3O+ • H2)

Quantity Value Units Method Reference Comment
ΔrH°15. ± 2.kJ/molSCATTERINGOkumura, Yeh, et al., 1990gas phase

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

By formula: K+ + H2 = (K+ • H2)

Quantity Value Units Method Reference Comment
ΔrH°7.78kJ/molSIDTBushnell, Kemper, et al., 1994gas phase; ΔrH(0K) = 6.07 kJ/mol
Quantity Value Units Method Reference Comment
ΔrS°56.5J/mol*KSIDTBushnell, Kemper, et al., 1994gas phase; ΔrH(0K) = 6.07 kJ/mol

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

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

Quantity Value Units Method Reference Comment
ΔrH°6.15kJ/molSIDTBushnell, Kemper, et al., 1994gas phase; ΔrH(0K) = 5.65 kJ/mol
Quantity Value Units Method Reference Comment
ΔrS°46.9J/mol*KSIDTBushnell, Kemper, et al., 1994gas phase; ΔrH(0K) = 5.65 kJ/mol

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

By formula: Li+ + H2 = (Li+ • H2)

Quantity Value Units Method Reference Comment
ΔrH°27. ± 19.kJ/molEIWu, 1979gas phase

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

By formula: Na+ + H2 = (Na+ • H2)

Quantity Value Units Method Reference Comment
ΔrH°12.3kJ/molSIDTBushnell, Kemper, et al., 1994gas phase; ΔrH(0K) = 10.3 kJ/mol
Quantity Value Units Method Reference Comment
ΔrS°55.2J/mol*KSIDTBushnell, Kemper, et al., 1994gas phase; ΔrH(0K) = 10.3 kJ/mol

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

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

Quantity Value Units Method Reference Comment
ΔrH°10.1kJ/molSIDTBushnell, Kemper, et al., 1994gas phase; ΔrH(0K) = 9.41 kJ/mol
Quantity Value Units Method Reference Comment
ΔrS°51.9J/mol*KSIDTBushnell, Kemper, et al., 1994gas phase; ΔrH(0K) = 9.41 kJ/mol

References

Go To: Top, Phase change data, Gas phase ion energetics 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.

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Wu, C.H., Binding Energies of LiH2 and LiH2+ and the Ionization Potential of LiH2, J. Chem. Phys., 1979, 71, 2, 783, https://doi.org/10.1063/1.438367 . [all data]

Notes

Go To: Top, Phase change data, Gas phase ion energetics data, Ion clustering data, References