Hydrogen

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Reaction thermochemistry data

Go To: Top, References, Notes

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

Data compiled as indicated in comments:
MS - José A. Martinho Simões
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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 301 to 350

C20H32Hf (solution) + Iodine (solution) = C20H30HfI2 (solution) + Hydrogen (g)

By formula: C20H32Hf (solution) + I2 (solution) = C20H30HfI2 (solution) + H2 (g)

Quantity Value Units Method Reference Comment
ΔrH°-70.89 ± 0.69kcal/molRSCSchock and Marks, 1988solvent: Toluene; MS

2Mesitylene + 6Hydrogen = Cyclohexane, 1,3,5-trimethyl-, (1α,3α,5β)- + Cyclohexane, 1,3,5-trimethyl-, (1α,3α,5α)-

By formula: 2C9H12 + 6H2 = C9H18 + C9H18

Quantity Value Units Method Reference Comment
ΔrH°-47.3 ± 0.5kcal/molEqkEgan and Buss, 1959gas phase; At 480-571 K; ALS

Hydrogen + 1-Butene, 2-ethyl-3-methyl- = Pentane, 2,3-dimethyl-

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-27.25 ± 0.31kcal/molChydRogers and Dejroongruang, 1989liquid phase; solvent: Cyclohexane; ALS

Hydrogen + 2-Heptene, (E)- = Heptane

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-27.3 ± 0.1kcal/molChydRogers and Dejroongruang, 1988liquid phase; solvent: Hydrocarbone; ALS

Hydrogen + 3-Heptene, (E)- = Heptane

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-27.41 ± 0.07kcal/molChydRogers and Dejroongruang, 1988liquid phase; solvent: Hydrocarbone; ALS

2-Hexene, 3-methyl-, (Z)- + Hydrogen = Hexane, 3-methyl-

By formula: C7H14 + H2 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-25.7 ± 0.1kcal/molChydRogers and Dejroongruang, 1988liquid phase; solvent: Hydrocarbone; ALS

(Z)-Hex-2-ene, 5-methyl- + Hydrogen = Hexane, 2-methyl-

By formula: C7H14 + H2 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-27.80 ± 0.07kcal/molChydRogers and Dejroongruang, 1988liquid phase; solvent: Hydrocarbone; ALS

Hydrogen + (E)-2-Hexene, 3-methyl = Hexane, 2-methyl-

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-28.27 ± 0.07kcal/molChydRogers and Dejroongruang, 1988liquid phase; solvent: Hydrocarbone; ALS

4Hydrogen + Benzene, 1,1'-(1,3-butadiyne-1,4-diyl)bis- = Benzene, 1,1'-(1,4-butanediyl)bis-

By formula: 4H2 + C16H10 = C16H18

Quantity Value Units Method Reference Comment
ΔrH°-118.49 ± 0.99kcal/molChydDavis, Allinger, et al., 1985liquid phase; solvent: Hexane; ALS

2Hydrogen + cis-2-Methyl-1-vinylcyclopropane = Pentane, 2-methyl-

By formula: 2H2 + C6H10 = C6H14

Quantity Value Units Method Reference Comment
ΔrH°-64.5 ± 0.1kcal/molChydRoth, Kirmse, et al., 1982liquid phase; solvent: Isooctane; ALS

Hydrogen + 3,3-Dimethylcyclohexene = Cyclohexane, 1,1-dimethyl-

By formula: H2 + C8H14 = C8H16

Quantity Value Units Method Reference Comment
ΔrH°-27.66 ± 0.16kcal/molChydTurner, Jarrett, et al., 1973liquid phase; solvent: Acetic acid; ALS

Hydrogen + 3-Hexene, 2,5-dimethyl-, (E)- = Hexane, 2,5-dimethyl-

By formula: H2 + C8H16 = C8H18

Quantity Value Units Method Reference Comment
ΔrH°-26.82 ± 0.05kcal/molChydTurner, Jarrett, et al., 1973liquid phase; solvent: Acetic acid; ALS

Hydrogen + Anti-tricyclo[3.2.0.0(2,4)]heptane = Bicyclo[3.2.0]heptane

By formula: H2 + C7H10 = C7H12

Quantity Value Units Method Reference Comment
ΔrH°-55.6 ± 0.3kcal/molChydRoth, Klaerner, et al., 1983liquid phase; solvent: Isooctane; ALS

Hydrogen + Syn-tricyclo[3.2.0.0(2,4)]heptane = Bicyclo[3.2.0]heptane

By formula: H2 + C7H10 = C7H12

Quantity Value Units Method Reference Comment
ΔrH°-64.1 ± 0.3kcal/molChydRoth, Klaerner, et al., 1983liquid phase; solvent: Isooctane; ALS

Hydrogen + Benzene, 2-propenyl- = Benzene, propyl-

By formula: H2 + C9H10 = C9H12

Quantity Value Units Method Reference Comment
ΔrH°-30.2 ± 0.2kcal/molChydRogers and McLafferty, 1971liquid phase; solvent: Hydrocarbon; ALS

Hydrogen + 1-Pentene, 3,3-dimethyl- = Pentane, 3,3-dimethyl-

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-29.37 ± 0.24kcal/molChydRogers and Dejroongruang, 1989liquid phase; solvent: Cyclohexane; ALS

Hydrogen + 1-Pentene, 2-ethyl- = Hexane, 3-methyl-

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-27.39 ± 0.26kcal/molChydRogers and Dejroongruang, 1989liquid phase; solvent: Cyclohexane; ALS

Hydrogen + 1-Pentene, 3-ethyl- = Pentane, 3-ethyl-

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-28.82 ± 0.31kcal/molChydRogers and Dejroongruang, 1989liquid phase; solvent: Cyclohexane; ALS

Hydrogen + 2-Pentene, 3,4-dimethyl-, (E)- = Pentane, 2,3-dimethyl-

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-25.81 ± 0.1kcal/molChydRogers and Dejroongruang, 1989liquid phase; solvent: Cyclohexane; ALS

Hydrogen + 2-Pentene, 3,4-dimethyl-, (Z)- = Pentane, 2,3-dimethyl-

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-25.88 ± 0.1kcal/molChydRogers and Dejroongruang, 1989liquid phase; solvent: Cyclohexane; ALS

Hydrogen + 1-Pentene, 2,3-dimethyl- = Pentane, 2,3-dimethyl-

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-27.1 ± 0.2kcal/molChydRogers and Dejroongruang, 1989liquid phase; solvent: Cyclohexane; ALS

2Hydrogen + C10H12 = Perhydrotriquinacene

By formula: 2H2 + C10H12 = C10H16

Quantity Value Units Method Reference Comment
ΔrH°-55.0 ± 0.4kcal/molChydLiebman, Paquette, et al., 1986liquid phase; solvent: Hexane; ALS

Hydrogen + Acridine = Acridine, 9,10-dihydro-

By formula: H2 + C13H9N = C13H11N

Quantity Value Units Method Reference Comment
ΔrH°18.0kcal/molCmJackman and Packham, 1957liquid phase; solvent: bis-2-Ethoxyethyl ether; ALS

Hydrogen + Cyclooctene = Cyclooctane

By formula: H2 + C8H14 = C8H16

Quantity Value Units Method Reference Comment
ΔrH°-22.4 ± 0.3kcal/molChydRogers and McLafferty, 1971liquid phase; solvent: Acetic acid; ALS

2Hydrogen + Tricyclo[4.3.2.0(1,6)]undeca-2,4-diene = 3a,7a-Ethano-1H-indene, hexahydro-

By formula: 2H2 + C11H14 = C11H18

Quantity Value Units Method Reference Comment
ΔrH°-49.3 ± 0.2kcal/molChydRoth, Klarner, et al., 1992liquid phase; solvent: Isooctane; ALS

4Hydrogen + Tricyclo[4.4.2.0(1,6)dodeca-2,4,7,9-tetraene = 4a,8a-Ethanonaphthalene, octahydro-

By formula: 4H2 + C12H12 = C12H20

Quantity Value Units Method Reference Comment
ΔrH°-106.1 ± 0.1kcal/molChydRoth, Klarner, et al., 1992liquid phase; solvent: Isooctane; ALS

3Hydrogen + Tricyclo[4.4.2.0(1,6)dodeca-2,4,8-triene = 4a,8a-Ethanonaphthalene, octahydro-

By formula: 3H2 + C12H14 = C12H20

Quantity Value Units Method Reference Comment
ΔrH°-81.8 ± 0.1kcal/molChydRoth, Klarner, et al., 1992liquid phase; solvent: Isooctane; ALS

2Hydrogen + Tricyclo[4.4.2.0(1,6)]dodeca-2,4-diene = 4a,8a-Ethanonaphthalene, octahydro-

By formula: 2H2 + C12H16 = C12H20

Quantity Value Units Method Reference Comment
ΔrH°-53.3 ± 0.1kcal/molChydRoth, Klarner, et al., 1992liquid phase; solvent: Isooctane; ALS

C20H32Zr (solution) + Phenol, pentafluoro- (solution) = C26H31F5OZr (solution) + Hydrogen (g)

By formula: C20H32Zr (solution) + C6HF5O (solution) = C26H31F5OZr (solution) + H2 (g)

Quantity Value Units Method Reference Comment
ΔrH°-34.20 ± 0.31kcal/molRSCSchock and Marks, 1988solvent: Toluene; MS

C20H32Zr (solution) + Phenol (solution) = C26H36OZr (solution) + Hydrogen (g)

By formula: C20H32Zr (solution) + C6H6O (solution) = C26H36OZr (solution) + H2 (g)

Quantity Value Units Method Reference Comment
ΔrH°-31.69 ± 0.41kcal/molRSCSchock and Marks, 1988solvent: Toluene; MS

C26H31F5OZr (solution) + Phenol, pentafluoro- (solution) = C32H30F10O2Zr (solution) + Hydrogen (g)

By formula: C26H31F5OZr (solution) + C6HF5O (solution) = C32H30F10O2Zr (solution) + H2 (g)

Quantity Value Units Method Reference Comment
ΔrH°-24.69 ± 0.60kcal/molRSCSchock and Marks, 1988solvent: Toluene; MS

Hydrogen + (Z)-2-Heptene = Heptane

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-27.63 ± 0.1kcal/molChydRogers and Dejroongruang, 1988liquid phase; solvent: Hydrocarbone; ALS

Hydrogen + 1-Hexene, 2-methyl- = Hexane, 2-methyl-

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-27.68 ± 0.1kcal/molChydRogers and Dejroongruang, 1988liquid phase; solvent: Hydrocarbone; ALS

Hydrogen + 1-Hexene, 3-methyl- = Hexane, 3-methyl-

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-29.76 ± 0.1kcal/molChydRogers and Dejroongruang, 1988liquid phase; solvent: Hydrocarbone; ALS

Hydrogen + 1-Hexene, 4-methyl- = Hexane, 3-methyl-

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-29.33 ± 0.07kcal/molChydRogers and Dejroongruang, 1988liquid phase; solvent: Hydrocarbone; ALS

Hydrogen + 1-Hexene, 5-methyl- = Hexane, 2-methyl-

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-29.78 ± 0.1kcal/molChydRogers and Dejroongruang, 1988liquid phase; solvent: Hydrocarbone; ALS

Hydrogen + 2-Hexene, 2-methyl- = Hexane, 2-methyl-

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-26.0 ± 0.2kcal/molChydRogers and Dejroongruang, 1988liquid phase; solvent: Hydrocarbone; ALS

Hydrogen + (Z)-4-Methyl-2-hexene = Hexane, 3-methyl-

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-27.63 ± 0.07kcal/molChydRogers and Dejroongruang, 1988liquid phase; solvent: Hydrocarbone; ALS

Hydrogen + 2-Hexene, 4-methyl-, (E)- = Hexane, 3-methyl-

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-26.58 ± 0.1kcal/molChydRogers and Dejroongruang, 1988liquid phase; solvent: Hydrocarbone; ALS

Hydrogen + 2-Hexene, 5-methyl-, (E)- = Hexane, 2-methyl-

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-26.86 ± 0.07kcal/molChydRogers and Dejroongruang, 1988liquid phase; solvent: Hydrocarbone; ALS

Hydrogen + 3-Hexene, 3-methyl-, (Z)- = Hexane, 3-methyl-

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-26.43 ± 0.1kcal/molChydRogers and Dejroongruang, 1988liquid phase; solvent: Hydrocarbone; ALS

Hydrogen + 3-Hexene, 3-methyl-, (E)- = Hexane, 3-methyl-

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-26.15 ± 0.1kcal/molChydRogers and Dejroongruang, 1988liquid phase; solvent: Hydrocarbone; ALS

Hydrogen + pentadecene = Pentadecane

By formula: H2 + C15H30 = C15H32

Quantity Value Units Method Reference Comment
ΔrH°-29.72 ± 0.23kcal/molChydRogers and Skanupong, 1974liquid phase; solvent: Hexane; ALS

Hydrogen + 1-Nonadecene = Nonadecane

By formula: H2 + C19H38 = C19H40

Quantity Value Units Method Reference Comment
ΔrH°-29.96 ± 0.43kcal/molChydRogers and Skanupong, 1974liquid phase; solvent: Hexane; ALS

Benzene, 1-hexynyl- + 2Hydrogen = Benzene, hexyl-

By formula: C12H14 + 2H2 = C12H18

Quantity Value Units Method Reference Comment
ΔrH°-62.6 ± 0.3kcal/molChydDavis, Allinger, et al., 1985liquid phase; solvent: Hexane; ALS

2Hydrogen + Cyclopropane,ethenyl- = Pentane

By formula: 2H2 + C5H8 = C5H12

Quantity Value Units Method Reference Comment
ΔrH°-65.5 ± 0.2kcal/molChydRoth, Kirmse, et al., 1982liquid phase; solvent: Isooctane; ALS

2Hydrogen + 1,1-Difluoro-2-vinylcyclopropane = Pentane, 2,2-difluoro

By formula: 2H2 + C5H6F2 = C5H10F2

Quantity Value Units Method Reference Comment
ΔrH°-79.7 ± 0.2kcal/molChydRoth, Kirmse, et al., 1982liquid phase; solvent: Isooctane; ALS

Hydrogen + 2-Octene, (E)- = Octane

By formula: H2 + C8H16 = C8H18

Quantity Value Units Method Reference Comment
ΔrH°-27.6 ± 0.2kcal/molChydRogers, Dejroongruang, et al., 1992liquid phase; solvent: Cyclohexane; ALS

Hydrogen + 3-Octene, (Z)- = Octane

By formula: H2 + C8H16 = C8H18

Quantity Value Units Method Reference Comment
ΔrH°-28.15 ± 0.1kcal/molChydRogers, Dejroongruang, et al., 1992liquid phase; solvent: Cyclohexane; ALS

2Hydrogen + 1,4-Bis-(vinyloxy)-butane = Butane, 1,4-diethoxy-

By formula: 2H2 + C8H14O2 = C8H18O2

Quantity Value Units Method Reference Comment
ΔrH°-53.05 ± 0.32kcal/molChydAllinger, Glaser, et al., 1981liquid phase; solvent: Hexane; ALS

References

Go To: Top, Reaction thermochemistry data, Notes

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

Schock and Marks, 1988
Schock, L.E.; Marks, T.J., J. Am. Chem. Soc., 1988, 110, 7701. [all data]

Egan and Buss, 1959
Egan, C.J.; Buss, W.C., Determination of the equilibrium constants for the hydrogenation of mesitylene. The thermodynamic properties of the 1,3,5-trimethylcyclohexanes, J. Phys. Chem., 1959, 63, 1887-1889. [all data]

Rogers and Dejroongruang, 1989
Rogers, D.W.; Dejroongruang, K., Enthalpies of hydrogenation of the dimethylpentenes, ethylpentenes, methylbutene, and trimethylbutene, J. Chem. Thermodyn., 1989, 21, 1115-1120. [all data]

Rogers and Dejroongruang, 1988
Rogers, D.W.; Dejroongruang, K., Enthalpies of hydrogenation of the n-heptenes and the methylhexenes, J. Chem. Thermodyn., 1988, 20, 675-680. [all data]

Davis, Allinger, et al., 1985
Davis, H.E.; Allinger, N.L.; Rogers, D.W., Enthalpies of hydrogenation of phenylalkynes: indirect determination of the enthalpy of formation of diphenylcyclopropenone, J. Org. Chem., 1985, 50, 3601-3604. [all data]

Roth, Kirmse, et al., 1982
Roth, W.R.; Kirmse, W.; Hoffmann, W.; Lennartz, H.W., Heats of hydrogenation. III. Effect of fluoro substituents on the thermal rearrangement of cyclopropane systems, Chem. Ber., 1982, 115, 2508-2515. [all data]

Turner, Jarrett, et al., 1973
Turner, R.B.; Jarrett, A.D.; Goebel, P.; Mallon, B.J., Heats of hydrogenation. 9. Cyclic acetylenes and some miscellaneous olefins, J. Am. Chem. Soc., 1973, 95, 790-792. [all data]

Roth, Klaerner, et al., 1983
Roth, W.R.; Klaerner, F.G.; Gerit, F.; Grimme, W.; Koeser, H.G.; Busch, R.; Muskulus, B.; Breuckmann, R.; Scholz, B.P.; Lennartz, H.W., Stereochemistry of the bicyclo[2.1.0]pentane ring opening: thermolysis of tricyclo[3.2.0.0(,)]heptane derivatives, Chem. Ber., 1983, 116, 2717-2737. [all data]

Rogers and McLafferty, 1971
Rogers, D.W.; McLafferty, F.J., A new hydrogen calorimeter. Heats of hydrogenation of allyl and vinyl unsaturation adjacent to a ring, Tetrahedron, 1971, 27, 3765-3775. [all data]

Liebman, Paquette, et al., 1986
Liebman, J.F.; Paquette, L.A.; Peterson, J.R.; Rogers, D.W., Is triquinacene homoaromatic? A thermochemical answer in the affirmative, J. Am. Chem. Soc., 1986, 108, 8267-8268. [all data]

Jackman and Packham, 1957
Jackman, L.M.; Packham, D.I., The experimental resonance energy of acridine, Proc. Chem. Soc., London, 1957, 349-350. [all data]

Roth, Klarner, et al., 1992
Roth, W.R.; Klarner, F.-G.; Siepert, G.; Lennartz, H.-W., Zur Frage der Homoaromatizitat von Norcaradien und Cycloheptatrien, Chem. Ber., 1992, 125, 217-224. [all data]

Rogers and Skanupong, 1974
Rogers, D.W.; Skanupong, S., Heats of hydrogenation of sixteen terminal monoolefins. The alternating effect, J. Phys. Chem., 1974, 78, 2569-2572. [all data]

Rogers, Dejroongruang, et al., 1992
Rogers, D.W.; Dejroongruang, K.; Samuel, S.D.; Fang, W.; Zhao, Y., Enthalpies of hydrogenation of the octenes and the methylheptenes, J. Chem. Thermodyn., 1992, 24, 561-565. [all data]

Allinger, Glaser, et al., 1981
Allinger, N.L.; Glaser, J.A.; Davis, H.E., Heats of hydrogenation of some vinyl ethers and related compounds, J. Org. Chem., 1981, 46, 658-661. [all data]

Notes

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