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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 by: 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 201 to 250

2Hydrogen + Ethene, chloro- = Ethane + Hydrogen chloride

By formula: 2H2 + C2H3Cl = C2H6 + HCl

Quantity Value Units Method Reference Comment
Deltar-214.2 ± 0.8kJ/molChydLacher, Emery, et al., 1956gas phase; At 298 K, see Lacher, Kianpour, et al., 1956

2Hydrogen + cis,cis-Cyclonona-1,5-diene = Cyclononane

By formula: 2H2 + C9H14 = C9H18

Quantity Value Units Method Reference Comment
Deltar-193.8 ± 1.1kJ/molChydTurner, Mallon, et al., 1973liquid phase; solvent: Glacial acetic acid

2Hydrogen + cis,trans-Cyclonona-1,5-diene = Cyclononane

By formula: 2H2 + C9H14 = C9H18

Quantity Value Units Method Reference Comment
Deltar-211.8 ± 1.3kJ/molChydTurner, Mallon, et al., 1973liquid phase; solvent: Glacial acetic acid

Hydrogen + Propylamine, N-ethylidene- = 1-Propanamine, N-ethyl-

By formula: H2 + C5H11N = C5H13N

Quantity Value Units Method Reference Comment
Deltar89. ± 2.kJ/molChydJackman and Packham, 1957liquid phase; solvent: bis-2-Ethoxyethyl ether

Hydrogen + Isobutyraldehyde ethylimine = 1-Propanamine, N-(1-methylethyl)-

By formula: H2 + C6H13N = C6H15N

Quantity Value Units Method Reference Comment
Deltar87. ± 1.kJ/molChydJackman and Packham, 1957liquid phase; solvent: bis-2-Ethoxyethyl ether

Hydrogen + vinylxylene = Benzene, (2-methylpropyl)-

By formula: H2 + vinylxylene = C10H14

Quantity Value Units Method Reference Comment
Deltar-107.5 ± 1.7kJ/molChydAbboud, Jimenez, et al., 1995liquid phase; solvent: Hyrocarbon; Like gas phase

2Hydrogen + 1,3-Butadiene, 1,4-diphenyl-, (E,E)- = Benzene, 1,1'-(1,4-butanediyl)bis-

By formula: 2H2 + C16H14 = C16H18

Quantity Value Units Method Reference Comment
Deltar-184.26 ± 0.62kJ/molChydWilliams, 1942liquid phase; solvent: Acetic acid; At 302 K

1,4-Cyclooctadiene + 2Hydrogen = Cyclooctane

By formula: C8H12 + 2H2 = C8H16

Quantity Value Units Method Reference Comment
Deltar-217.9 ± 1.2kJ/molChydTurner, Mallon, et al., 1973liquid phase; solvent: Glacial acetic acid

3Hydrogen + 1,3,6-Cyclooctatriene = Cyclooctane

By formula: 3H2 + C8H10 = C8H16

Quantity Value Units Method Reference Comment
Deltar-334.3 ± 0.71kJ/molChydTurner, Mallon, et al., 1973liquid phase; solvent: Glacial acetic acid

Styrene + Hydrogen = Ethylbenzene

By formula: C8H8 + H2 = C8H10

Quantity Value Units Method Reference Comment
Deltar-117.2 ± 1.7kJ/molChydAbboud, Jimenez, et al., 1995liquid phase; solvent: Hydrocarbon; Like gas phase

2Hydrogen + 1,4-Cycloheptadiene = Cycloheptane

By formula: 2H2 + C7H10 = C7H14

Quantity Value Units Method Reference Comment
Deltar-234. ± 3.kJ/molChydTurner, Mallon, et al., 1973liquid phase; solvent: Glacial acetic acid

Hydrogen + Propionaldehyde ethylimine = 1-Propanamine, N-ethyl-

By formula: H2 + C5H11N = C5H13N

Quantity Value Units Method Reference Comment
Deltar93.7 ± 0.4kJ/molCmJackman and Packham, 1957liquid phase; solvent: bis-2-Ethoxyethyl ether

Hydrogen + Naphthalene, 1,2-dihydro- = Naphthalene, 1,2,3,4-tetrahydro-

By formula: H2 + C10H10 = C10H12

Quantity Value Units Method Reference Comment
Deltar-100.83 ± 0.83kJ/molChydWilliams, 1942liquid phase; solvent: Acetic acid; At 302 K

2-Propenoic acid, 3-phenyl-, methyl ester + Hydrogen = Benzenepropanoic acid, methyl ester

By formula: C10H10O2 + H2 = C10H12O2

Quantity Value Units Method Reference Comment
Deltar-101.18 ± 0.43kJ/molChydWilliams, 1942liquid phase; solvent: Acetic acid; At 302 K

Hydrogen + 2-Butenedioic acid (Z)-, diethyl ester = Butanedioic acid, diethyl ester

By formula: H2 + C8H12O4 = C8H14O4

Quantity Value Units Method Reference Comment
Deltar-140.24 ± 0.64kJ/molChydWilliams, 1942liquid phase; solvent: Acetic acid; At 302 K

Hydrogen + trans-β-Methylstyrene = Benzene, propyl-

By formula: H2 + C9H10 = C9H12

Quantity Value Units Method Reference Comment
Deltar-105.9 ± 1.3kJ/molChydAbboud, Jimenez, et al., 1995liquid phase; solvent: Hyrocarbon; Like gas phase

Hydrogen + C6H13N = 1-Propanamine, N-propyl-

By formula: H2 + C6H13N = C6H15N

Quantity Value Units Method Reference Comment
Deltar80.8 ± 0.8kJ/molChydJackman and Packham, 1957liquid phase; solvent: bis-2-Ethoxyethyl ether

Hydrogen + C6H13N = isobutylethyl-amine

By formula: H2 + C6H13N = C6H15N

Quantity Value Units Method Reference Comment
Deltar88. ± 2.kJ/molCmJackman and Packham, 1957liquid phase; solvent: bis-2-Ethoxyethyl ether

Hydrogen + 1,4-Dihydronaphthalene = Naphthalene, 1,2,3,4-tetrahydro-

By formula: H2 + C10H10 = C10H12

Quantity Value Units Method Reference Comment
Deltar-113.5 ± 0.4kJ/molChydWilliams, 1942liquid phase; solvent: Acetic acid; At 302 K

6Hydrogen + 1,3,5-Cycloheptatriene-7-(2,4,6-cycloheptatrien-1-ylidene)- = Cycloheptane, cycloheptylidene-

By formula: 6H2 + C14H12 = C14H24

Quantity Value Units Method Reference Comment
Deltar-547.14 ± 0.54kJ/molChydTurner, Meador, et al., 1957solid phase; solvent: Diethylcarbitol

Hydrogen + α-Methylstyrene = Benzene, (1-methylethyl)-

By formula: H2 + C9H10 = C9H12

Quantity Value Units Method Reference Comment
Deltar-111.3 ± 2.1kJ/molChydAbboud, Jimenez, et al., 1995liquid phase; solvent: Hyrocarbon; Like gas phase

2Hydrogen + 2Cyclopentene, 1,2-dimethyl- = Cyclopentane, 1,2-dimethyl-, cis- + Cyclopentane, 1,2-dimethyl-, trans-

By formula: 2H2 + 2C7H12 = C7H14 + C7H14

Quantity Value Units Method Reference Comment
Deltar-94.35 ± 0.75kJ/molChydAllinger, Dodziuk, et al., 1982liquid phase; solvent: Hexane

Hydrogen + 1,3-Dimethylbicyclo[1.1.0]butane = Cyclobutane, 1,3-dimethyl

By formula: H2 + C6H10 = C6H12

Quantity Value Units Method Reference Comment
Deltar-169.8 ± 1.5kJ/molChydTurner, Goebel, et al., 1968liquid phase; solvent: Diethyl carbitol

6Hydrogen + 7,7'-bis(Cycloheptatrienyl) = 1,1'-Bicycloheptyl

By formula: 6H2 + C14H14 = C14H26

Quantity Value Units Method Reference Comment
Deltar-580.78 ± 0.84kJ/molChydTurner, Meador, et al., 1957solid phase; solvent: Acetic acid

4Hydrogen + Heptafulvene = Cycloheptane, methyl-

By formula: 4H2 + C8H8 = C8H16

Quantity Value Units Method Reference Comment
Deltar-387.6 ± 1.7kJ/molChydTurner, Meador, et al., 1957solid phase; solvent: Diethylcarbitol

10Hydrogen + Decamethyl-[5]pericyclyne = C25H50

By formula: 10H2 + C25H30 = C25H50

Quantity Value Units Method Reference Comment
Deltar-1425. ± 9.2kJ/molChydScott, Cooney, et al., 1988liquid phase; solvent: Hydrocarbon

Hydrogen + 1,2-Dimethyl-3-carbomethoxycyclopropene = Cyclopropanecarboxylic acid, 2,3-dimethyl-, methyl ester

By formula: H2 + C7H10O2 = C7H12O2

Quantity Value Units Method Reference Comment
Deltar-170.0 ± 1.4kJ/molChydTurner, Goebel, et al., 1968liquid phase; solvent: Acetic acid

2Hydrogen + trans,trans-1,6-Cyclodecadiene = Cyclodecane

By formula: 2H2 + C10H16 = C10H20

Quantity Value Units Method Reference Comment
Deltar-199.3kJ/molChydTurner, Mallon, et al., 1973liquid phase; solvent: Glacial acetic acid

5Hydrogen + Bicyclo[6.2.0]decapentaene = Bicyclo[6.2.0]decane, trans-

By formula: 5H2 + C10H8 = C10H18

Quantity Value Units Method Reference Comment
Deltar-567. ± 3.kJ/molChydRoth, Lennartz, et al., 1986liquid phase; solvent: Cyclohexane

cis,cis-1,6-Cyclodecadiene + 2Hydrogen = Cyclodecane

By formula: C10H16 + 2H2 = C10H20

Quantity Value Units Method Reference Comment
Deltar-183.0kJ/molChydTurner, Mallon, et al., 1973liquid phase; solvent: Glacial acetic acid

Hydrogen + Cyclobutene, 1,2-dimethyl- = cyclobutane, 1,2-dimethyl-, cis-

By formula: H2 + C6H10 = C6H12

Quantity Value Units Method Reference Comment
Deltar-110.3 ± 1.0kJ/molChydTurner, Goebel, et al., 1968liquid phase; solvent: Acetic acid

Hydrogen + Cyclopropane, ethylidene- = Cyclopropane, ethyl-

By formula: H2 + C5H8 = C5H10

Quantity Value Units Method Reference Comment
Deltar-155.0 ± 0.63kJ/molChydTurner, Goebel, et al., 1968liquid phase; solvent: Acetic acid

endo,endo-Tetracyclo[6.2.1.1(3,6).0(2,7)]dodeca-4,9-diene + 2Hydrogen = 1,4:5,8-Dimethanonaphthalene, decahydro-, (1α,4α,4aα,5α,8α,8aα)-

By formula: C12H14 + 2H2 = C12H18

Quantity Value Units Method Reference Comment
Deltar-255.4 ± 1.1kJ/molChydTurner, Jarrett, et al., 1973liquid phase; solvent: Acetic acid

2Hydrogen + exo,endo-Tetracyclo[6.2.1.1(3,6).0(2,7)]dodeca-4,9-diene = exo,endo-Tetracyclo[6.2.1.1(3,6).0(2,7)]dodecane

By formula: 2H2 + C12H14 = C12H18

Quantity Value Units Method Reference Comment
Deltar-289. ± 1.kJ/molChydTurner, Jarrett, et al., 1973liquid phase; solvent: Acetic acid

Hydrogen + 1,4:5,8-Dimethanonaphthalene, 1,2,3,4,4a,5,8,8a-octahydro-, (1α,4α,4aα,5β,8β,8aα)- = exo,endo-Tetracyclo[6.2.1.1(3,6).0(2,7)]dodecane

By formula: H2 + C12H16 = C12H18

Quantity Value Units Method Reference Comment
Deltar-133.6 ± 0.88kJ/molChydTurner, Jarrett, et al., 1973liquid phase; solvent: Acetic acid

Hydrogen + Cholest-2-ene = Cholestane

By formula: H2 + C27H46 = C27H48

Quantity Value Units Method Reference Comment
Deltar-108.2 ± 0.71kJ/molChydTurner, Meador, et al., 1957, 2liquid phase; solvent: Acetic acid

Hydrogen + Cholest-3-ene = Cholestane

By formula: H2 + C27H46 = C27H48

Quantity Value Units Method Reference Comment
Deltar-117.0 ± 0.59kJ/molChydTurner, Meador, et al., 1957, 2liquid phase; solvent: Acetic acid

2Hydrogen + Tetracyclo[5.2.1.0(2,6).0(3,5)]dec-8-ene = endo-Ttricyclo[5.2.1.0(2,6)]decane

By formula: 2H2 + C10H12 = C10H16

Quantity Value Units Method Reference Comment
Deltar-363. ± 1.kJ/molChydRoth, Klarner, et al., 1980liquid phase; solvent: Cyclohexane

2Hydrogen + 5,5-Dimethylbicyclo[2.1.0]pent-2-ene = Cyclopentane, 1,1-dimethyl-

By formula: 2H2 + C7H10 = C7H14

Quantity Value Units Method Reference Comment
Deltar-406. ± 0.8kJ/molChydRoth, Klarner, et al., 1980liquid phase; solvent: Cyclohexane

Hydrogen + C27H46 = Cholestane

By formula: H2 + C27H46 = C27H48

Quantity Value Units Method Reference Comment
Deltar-114.2 ± 1.0kJ/molChydTurner, Meador, et al., 1957, 2liquid phase; solvent: Acetic acid

5Hydrogen + Azulene = Bicyclo[5.3.0]decane

By formula: 5H2 + C10H8 = C10H18

Quantity Value Units Method Reference Comment
Deltar-414.1 ± 0.54kJ/molChydTurner, Meador, et al., 1957liquid phase; solvent: Acetic acid

2Hydrogen + (E,E)-2,4-Hexadiene, 3,4-dimethyl- = Hexane, 3,4-dimethyl-

By formula: 2H2 + C8H14 = C8H18

Quantity Value Units Method Reference Comment
Deltar-209.1 ± 0.3kJ/molChydRoth, Lennartz, et al., 1988liquid phase; solvent: Isooctane

7Hydrogen + Octalene = C14H26

By formula: 7H2 + C14H12 = C14H26

Quantity Value Units Method Reference Comment
Deltar-658. ± 1.kJ/molChydRoth, Lennartz, et al., 1986liquid phase; solvent: Cyclohexane

exo,endo-Tetracyclo[6.2.1.1(3,6).0(2,7)]dodec-4-ene + Hydrogen = C12H18

By formula: C12H16 + H2 = C12H18

Quantity Value Units Method Reference Comment
Deltar-112.5 ± 0.46kJ/molChydTurner, Jarrett, et al., 1973liquid phase; solvent: Acetic acid

2,2,5,5,8,8-Hexamethylnona-3,6-diyne + 4Hydrogen = C15H32

By formula: C15H24 + 4H2 = C15H32

Quantity Value Units Method Reference Comment
Deltar-544. ± 4.kJ/molChydScott, Cooney, et al., 1988liquid phase; solvent: Hydrocarbon

Hydrogen + 1-Butene, 2-(1,1-dimethylethyl)-3,3-dimethyl- = Pentane, 2,2,3,4,4-pentamethyl-

By formula: H2 + C10H20 = C10H22

Quantity Value Units Method Reference Comment
Deltar-117.2 ± 0.04kJ/molChydTurner, Jarrett, et al., 1973liquid phase; solvent: Acetic acid

Cyclobutane, methylene- + Hydrogen = Cyclobutane, methyl-

By formula: C5H8 + H2 = C5H10

Quantity Value Units Method Reference Comment
Deltar-123.1 ± 0.3kJ/molChydTurner, Goebel, et al., 1968liquid phase; solvent: Acetic acid

Hydrogen + Cyclobutene, 1-methyl- = Cyclobutane, methyl-

By formula: H2 + C5H8 = C5H10

Quantity Value Units Method Reference Comment
Deltar-119.2 ± 0.04kJ/molChydTurner, Goebel, et al., 1968liquid phase; solvent: Acetic acid

2Hydrogen + 1,3-Bis(methylene)cyclobutane = Cyclobutane, 1,3-dimethyl

By formula: 2H2 + C6H8 = C6H12

Quantity Value Units Method Reference Comment
Deltar-251. ± 4.2kJ/molChydTurner, Goebel, et al., 1968liquid phase; solvent: Acetic acid

3Hydrogen + Bicyclo[4.2.0]octa-1,3,5-triene = Bicyclo[4.2.0]octane

By formula: 3H2 + C8H8 = C8H14

Quantity Value Units Method Reference Comment
Deltar-210.5 ± 0.1kJ/molChydTurner, Goebel, et al., 1968liquid phase; solvent: Acetic acid

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.

Lacher, Emery, et al., 1956
Lacher, J.R.; Emery, E.; Bohmfalk, E.; Park, J.D., Reaction heats of organic compounds. IV. A high temperature calorimeter and the hydrogenation of methyl ethyl and vinyl chlorides, J. Phys. Chem., 1956, 60, 492-495. [all data]

Lacher, Kianpour, et al., 1956
Lacher, J.R.; Kianpour, A.; Oetting, F.; Park, J.D., Reaction calorimetry. The hydrogenation of organic fluorides and chlorides, Trans. Faraday Soc., 1956, 52, 1500-1508. [all data]

Turner, Mallon, et al., 1973
Turner, R.B.; Mallon, B.J.; Tichy, M.; Doering, W.v.E.; Roth, W.R.; Schroder, G., Heats of hydrogenation. X. Conjugative interaction in cyclic dienes and trienes, J. Am. Chem. Soc., 1973, 95, 8605-8610. [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]

Abboud, Jimenez, et al., 1995
Abboud, J.-L.M.; Jimenez, P.; Roux, M.V.; Turrion, C.; Lopez-Mardomingo, C.; Podosenin, A.; Rogers, D.W.; Liebman, J.F., Interrelations of the energetics of amides and alkenes: enthalpies of formation of N,N-dimethyl dertivatives of pivalamide, 1-adamantylcarboxamide and benzamide, and of styrene and its a-, trans-«beta»- and «beta»,«beta»-methylated derivates, J. Phys. Org. Chem., 1995, 8, 15-25. [all data]

Williams, 1942
Williams, R.B., Heats of catalytic hydrogenation in solution. I. Apparatus, technique, and the heats of hydrogenation of certain pairs of stereoisomers, J. Am. Chem. Soc., 1942, 64, 1395-1404. [all data]

Turner, Meador, et al., 1957
Turner, R.B.; Meador, W.R.; Doering, W.E.; Knox, L.H.; Mayer, J.R.; Wiley, D.W., Heats of hydrogenation. III. Hydrogenation of cycllooctatetraene and of some seven-membered non-benzenoid aromatic compounds, J. Am. Chem. Soc., 1957, 79, 4127-4133. [all data]

Allinger, Dodziuk, et al., 1982
Allinger, N.L.; Dodziuk, H.; Rogers, D.W.; Naik, S.N., Heats of hydrogenation and formation of some 5-membered ring compounds by molecular mechanics calculations and direct measurements, Tetrahedron, 1982, 38, 1593-1597. [all data]

Turner, Goebel, et al., 1968
Turner, R.B.; Goebel, P.; Mallon, B.J.; Doering, W.E.; Coburn, J.F., Jr.; Pomerantz, M., Heats of hydrogenation. VIII. Compounds with three- and four-membered rings, J. Am. Chem. Soc., 1968, 90, 4315-4322. [all data]

Scott, Cooney, et al., 1988
Scott, L.T.; Cooney, M.J.; Rogers, D.W.; Dejroongruang, K., Homoaromaticity in a cyclic polyacetylene, J. Am. Chem. Soc., 1988, 110, 7244-7245. [all data]

Roth, Lennartz, et al., 1986
Roth, W.E.; Lennartz, H.W.; Vogel, E.; Leiendecker, M.; Masaji, O., Heats of hydrogenation. 6. Resonance energy of fused [4n]annulenes, Chem. Ber., 1986, 119, 837-843. [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]

Turner, Meador, et al., 1957, 2
Turner, R.B.; Meador, W.R.; Winkler, R.E., Heats of hydrogenation. II. Heats of hydrogenation and the acid-catalyzed isomerization of some unsaturated steroids, J. Am. Chem. Soc., 1957, 79, 4122-4127. [all data]

Roth, Klarner, et al., 1980
Roth, W.R.; Klarner, F.-G.; Lennartz, H.-W., Heats of hydrogenation. II. Heat of hydrogenation of bicyclo[2.1.0]pent-2-ene, an antiaromatic system, Chem. Ber., 1980, 113, 1806-1818. [all data]

Roth, Lennartz, et al., 1988
Roth, W.R.; Lennartz, H-W.; Doering, W.v.E.; Dolbier, W.R., Jr.; Schmidhauser, J.C., Thermochemistry of the "orthogonal" butadienes (Z,Z)-3,4-dimethylhexa-2,4-diene and 2,3-di-tert-butylbuta-1,3-diene, J. Am. Chem. Soc., 1988, 110, 1883-1889. [all data]


Notes

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