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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
MS - José A. Martinho Simões

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 501 to 550

trans-3-Methylcyclohexanol = Hydrogen + Cyclohexanone, 3-methyl-

By formula: C7H14O = H2 + C7H12O

Quantity Value Units Method Reference Comment
ΔrH°14.9 ± 0.50kcal/molEqkFedoseenko, Yursha, et al., 1983gas phase; At 488 K; ALS

cis-3-Methylcyclohexanol = Hydrogen + Cyclohexanone, 3-methyl-

By formula: C7H14O = H2 + C7H12O

Quantity Value Units Method Reference Comment
ΔrH°15.7 ± 0.50kcal/molEqkFedoseenko, Yursha, et al., 1983gas phase; At 488 K; ALS

2Hydrogen + 1,1'-Spirobi[1H-indene] = 1,1'-Spirobiindane

By formula: 2H2 + C17H12 = C17H16

Quantity Value Units Method Reference Comment
ΔrH°-61.0 ± 1.0kcal/molChydHill, Morton, et al., 1980liquid phase; ALS

3Hydrogen + 2,5-Dimethyl-(E)-1,3,5-hexatriene = Hexane, 2,5-dimethyl-

By formula: 3H2 + C8H12 = C8H18

Quantity Value Units Method Reference Comment
ΔrH°-76.1 ± 0.1kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

4Hydrogen + 3,9-Dodecadiyne = Dodecane

By formula: 4H2 + C12H18 = C12H26

Quantity Value Units Method Reference Comment
ΔrH°-131.2 ± 0.5kcal/molChydFlitcroft, Skinner, et al., 1957liquid phase; ALS

3Hydrogen + 1,3-Cyclopentadiene, 5-(1-methylethylidene)- = Cyclopentane, (1-methylethyl)-

By formula: 3H2 + C8H10 = C8H16

Quantity Value Units Method Reference Comment
ΔrH°-72.2 ± 0.1kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

Hydrogen + Chloromethane = Methane + Hydrogen chloride

By formula: H2 + CH3Cl = CH4 + HCl

Quantity Value Units Method Reference Comment
ΔrH°-19.3 ± 0.1kcal/molChydLacher, Emery, et al., 1956gas phase; ALS

Hydrogen + Ethyl Chloride = Ethane + Hydrogen chloride

By formula: H2 + C2H5Cl = C2H6 + HCl

Quantity Value Units Method Reference Comment
ΔrH°-16.6 ± 0.1kcal/molChydLacher, Emery, et al., 1956gas phase; ALS

3Hydrogen + 6-Methylfulvene = Cyclopentane, ethyl-

By formula: 3H2 + C7H8 = C7H14

Quantity Value Units Method Reference Comment
ΔrH°-74.5 ± 0.1kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

2Hydrogen + trans-Bicyclo[4.1.0]hept-3-ene = Cyclohexane, methyl-

By formula: 2H2 + C7H10 = C7H14

Quantity Value Units Method Reference Comment
ΔrH°-92.4 ± 0.1kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

Bicyclo[3.2.0]hept-1(5)-ene + Hydrogen = Bicyclo[3.2.0]heptane, cis-

By formula: C7H10 + H2 = C7H12

Quantity Value Units Method Reference Comment
ΔrH°-40.8 ± 0.1kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

3Hydrogen + 3-Ethylidene-1,4-pentadiene = Pentane, 3-ethyl-

By formula: 3H2 + C7H10 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-83.3 ± 0.1kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

2Hydrogen + Cyclopentane,1,2-bis(methylene)- = Cyclopentane, 1,2-dimethyl-, trans-

By formula: 2H2 + C7H10 = C7H14

Quantity Value Units Method Reference Comment
ΔrH°-55.2 ± 0.2kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

3Hydrogen + Cyclopropane, 1,1-diethenyl- = Pentane, 3-ethyl-

By formula: 3H2 + C7H10 = C7H16

Quantity Value Units Method Reference Comment
ΔrH°-93.4 ± 0.2kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

Hydrogen + Tricyclo[3.2.1.0(1,5)]octane = Bicyclo[3.2.1]octane

By formula: H2 + C8H12 = C8H14

Quantity Value Units Method Reference Comment
ΔrH°-71.6 ± 0.3kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

2Hydrogen + 1,5-Cyclooctadiene, (E,E)- = Cyclooctane

By formula: 2H2 + C8H12 = C8H16

Quantity Value Units Method Reference Comment
ΔrH°-76.6 ± 0.1kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

3Hydrogen + 3-(2-Propylidene)-1,4-pentadiene = Pentane, 3-ethyl-2-methyl-

By formula: 3H2 + C8H12 = C8H18

Quantity Value Units Method Reference Comment
ΔrH°-81.3 ± 0.1kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

Hydrogen + Tricyclo[5.3.0.0(2.6)]deca-1(7)-ene = Cyclobutadicyclopentene, decahydro

By formula: H2 + C10H14 = C10H16

Quantity Value Units Method Reference Comment
ΔrH°-37.5 ± 0.3kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

2Hydrogen + 3,3'-Bicyclopentenyl = 1,1'-Bicyclopentyl

By formula: 2H2 + C10H14 = C10H18

Quantity Value Units Method Reference Comment
ΔrH°-54.5 ± 0.1kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

2Hydrogen + Dl 3,3'-bis(cyclopentenyl) = 1,1'-Bicyclopentyl

By formula: 2H2 + C10H14 = C10H18

Quantity Value Units Method Reference Comment
ΔrH°-54.6 ± 0.1kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

(Z) 3,3'-Bis-(1-cyclohexenylidene) + 3Hydrogen = 1,1'-Bicyclohexyl

By formula: C12H16 + 3H2 = C12H22

Quantity Value Units Method Reference Comment
ΔrH°-73.7 ± 0.2kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

(E) 3,3'-Bis-(1-cyclohexenylidene) + 3Hydrogen = 1,1'-Bicyclohexyl

By formula: C12H16 + 3H2 = C12H22

Quantity Value Units Method Reference Comment
ΔrH°-73.4 ± 0.2kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

2Hydrogen + Syn tricyclo[4.2.2.2(2,5)]dodeca-3,7-diene = C12H20

By formula: 2H2 + C12H16 = C12H20

Quantity Value Units Method Reference Comment
ΔrH°-55.5 ± 0.2kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

Cyclohexanol = Cyclohexane + Hydrogen

By formula: C6H12O = C6H12 + H2

Quantity Value Units Method Reference Comment
ΔrH°15.2 ± 0.55kcal/molEqkFedoseenko, Yursha, et al., 1983gas phase; At 502 K; ALS

2Hydrogen + (Z,E)-1,3-Cyclooctadiene = Cyclooctane

By formula: 2H2 + C8H12 = C8H16

Quantity Value Units Method Reference Comment
ΔrH°-64.7 ± 0.1kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

5,7-Dodecadiyne + 4Hydrogen = Dodecane

By formula: C12H18 + 4H2 = C12H26

Quantity Value Units Method Reference Comment
ΔrH°-127.3 ± 0.7kcal/molChydFlitcroft, Skinner, et al., 1957liquid phase; ALS

3Hydrogen + 1-Buten-3-yne = Butane

By formula: 3H2 + C4H4 = C4H10

Quantity Value Units Method Reference Comment
ΔrH°-100.8 ± 0.5kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

2Hydrogen + Bicyclo[3.2.0]hepta-2,6-diene = Bicyclo[3.2.0]heptane

By formula: 2H2 + C7H8 = C7H12

Quantity Value Units Method Reference Comment
ΔrH°-62.6 ± 0.1kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

3Hydrogen + Spiro[2,4]hepta-4,6-diene = Cyclopentane, ethyl-

By formula: 3H2 + C7H8 = C7H14

Quantity Value Units Method Reference Comment
ΔrH°-87.1 ± 0.2kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

Hydrogen + Bicyclo[3.2.0]hept-1-ene = Bicyclo[3.2.0]heptane

By formula: H2 + C7H10 = C7H12

Quantity Value Units Method Reference Comment
ΔrH°-39.4 ± 0.3kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

2Hydrogen + Tricyclo[3.2.1.0(2,4)]oct-6-ene,(1α,2β,4β,5α)- = Bicyclo[2.2.1]heptane, 2-methyl-, exo-

By formula: 2H2 + C8H10 = C8H14

Quantity Value Units Method Reference Comment
ΔrH°-74.7 ± 0.1kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

2Hydrogen + Tricyclo[3.2.1.0(2,4)]oct-6-ene,(1α,2α,4α,5α)- = Endo-2-methylnorbornane

By formula: 2H2 + C8H10 = C8H14

Quantity Value Units Method Reference Comment
ΔrH°-76.0 ± 0.2kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

Bicyclo[4.2.0]oct-1(6)-ene + Hydrogen = Bicyclo[4.2.0]octane

By formula: C8H12 + H2 = C8H14

Quantity Value Units Method Reference Comment
ΔrH°-29.4 ± 0.1kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

2Hydrogen + 1,5-Cyclooctadiene, (E,Z)- = Cyclooctane

By formula: 2H2 + C8H12 = C8H16

Quantity Value Units Method Reference Comment
ΔrH°-67.5 ± 0.1kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

Hydrogen + Tricyclo[4.2.2.2(2,5)]dodec-3-ene = C12H20

By formula: H2 + C12H18 = C12H20

Quantity Value Units Method Reference Comment
ΔrH°-26.7 ± 0.2kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

Ethylene, 1,2-dichloro-, (Z)- = Hydrogen + Ethyne, dichloro-

By formula: C2H2Cl2 = H2 + C2Cl2

Quantity Value Units Method Reference Comment
ΔrH°3.9kcal/molKinLaursen and Pimentel, 1989gas phase; Photolysis; ALS

Propane, 1-bromo- + Hydrogen = Hydrogen bromide + Propane

By formula: C3H7Br + H2 = HBr + C3H8

Quantity Value Units Method Reference Comment
ΔrH°-13.57kcal/molChydDavies, Lacher, et al., 1965gas phase; ALS

Hydrogen + cis-Bicyclo[3.2.0]hept-2-ene = Bicyclo[3.2.0]heptane

By formula: H2 + C7H10 = C7H12

Quantity Value Units Method Reference Comment
ΔrH°-27.8 ± 0.1kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

2Hydrogen + Bi-2-cyclohexen-1-yl = 1,1'-Bicyclohexyl

By formula: 2H2 + C12H18 = C12H22

Quantity Value Units Method Reference Comment
ΔrH°-57.4 ± 0.2kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

Phenol (cr) + C10H11ClZr (cr) = C16H15ClOZr (cr) + Hydrogen (g)

By formula: C6H6O (cr) + C10H11ClZr (cr) = C16H15ClOZr (cr) + H2 (g)

Quantity Value Units Method Reference Comment
ΔrH°-18.6 ± 1.0kcal/molRSCDiogo, Simoni, et al., 1993MS

2Hydrogen + Bicyclo(3.1.0)hex-2-ene = Cyclopentane, methyl-

By formula: 2H2 + C6H8 = C6H12

Quantity Value Units Method Reference Comment
ΔrH°-63.1 ± 0.2kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

Hydrogen + 1-Pentene, 4-methyl- = Pentane, 2-methyl-

By formula: H2 + C6H12 = C6H14

Quantity Value Units Method Reference Comment
ΔrH°-30.28 ± 0.10kcal/molChydRogers, Crooks, et al., 1987liquid phase; ALS

Hydrogen + 2-Pentene, 2-methyl- = Pentane, 2-methyl-

By formula: H2 + C6H12 = C6H14

Quantity Value Units Method Reference Comment
ΔrH°-26.67 ± 0.18kcal/molChydRogers, Crooks, et al., 1987liquid phase; ALS

4Hydrogen + 1,7-Octadiyne = Octane

By formula: 4H2 + C8H10 = C8H18

Quantity Value Units Method Reference Comment
ΔrH°-139.7 ± 1.2kcal/molChydFlitcroft, Skinner, et al., 1957liquid phase; ALS

Hydrogen + (E)-3,4-Di-tert-butyl-3-hexene = Hexane, 3,4-diethyl-2,2,5,5-tetramethyl-, (R*,R*)-(+/-)-

By formula: H2 + C14H28 = C14H30

Quantity Value Units Method Reference Comment
ΔrH°-38.09kcal/molChydDoering, Roth, et al., 1989liquid phase; ALS

Hydrogen + Ethyl Acetate = 2Ethanol

By formula: H2 + C4H8O2 = 2C2H6O

Quantity Value Units Method Reference Comment
ΔrH°-17.92 ± 0.13kcal/molCmWiberg, Crocker, et al., 1991liquid phase; ALS

Fumaric Acid + Hydrogen = Butanedioic acid

By formula: C4H4O4 + H2 = C4H6O4

Quantity Value Units Method Reference Comment
ΔrH°-31.15 ± 0.03kcal/molChydFlitcroft, Skinner, et al., 1957liquid phase; ALS

3Hydrogen + Fulvene = Cyclopentane, methyl-

By formula: 3H2 + C6H6 = C6H12

Quantity Value Units Method Reference Comment
ΔrH°-78.9 ± 0.1kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

Hydrogen + Bicyclo[2.1.1]hex-2-ene = Bicyclo[2.1.1]hexane

By formula: H2 + C6H8 = C6H10

Quantity Value Units Method Reference Comment
ΔrH°-40.8 ± 0.1kcal/molChydRoth, Adamczak, et al., 1991liquid phase; ALS

2Hydrogen + 3-Methylenecyclopentene = Cyclopentane, methyl-

By formula: 2H2 + C6H8 = C6H12

Quantity Value Units Method Reference Comment
ΔrH°-52.9 ± 0.2kcal/molChydRoth, Adamczak, et al., 1991liquid phase; 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.

Fedoseenko, Yursha, et al., 1983
Fedoseenko, V.I.; Yursha, I.A.; Kabo, G.Ya., Equilibrium and thermodynamics of cyclohexanol dehydrogenation reactions, Dokl. Akad. Nauk BSSR, 1983, 27, 926-929. [all data]

Hill, Morton, et al., 1980
Hill, R.K.; Morton, G.H.; Rogers, D.W.; Choi, L.S., Rearrangement of 1,1'-spirobiindene and thermochemical evidence for its spiroconjugative destabilization, J. Org. Chem., 1980, 45, 5163-5166. [all data]

Roth, Adamczak, et al., 1991
Roth, W.R.; Adamczak, O.; Breuckmann, R.; Lennartz, H.-W.; Boese, R., Die Berechnung von Resonanzenergien; das MM2ERW-Kraftfeld, Chem. Ber., 1991, 124, 2499-2521. [all data]

Flitcroft, Skinner, et al., 1957
Flitcroft, T.; Skinner, H.A.; Whiting, M.C., Heats of hydrogenation Part 1.-Dodeca-3:9 and -5:7 Diynes, Trans. Faraday Soc., 1957, 53, 784-790. [all data]

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]

Laursen and Pimentel, 1989
Laursen, S.L.; Pimentel, G.C., Matrix-induced intersystem crossing in the photochemistry of the 1,2-dichloroethenes, J. Phys. Chem., 1989, 93, 2328-2333. [all data]

Davies, Lacher, et al., 1965
Davies, J.; Lacher, J.R.; Park, J.D., Reaction heats of organic compounds. Part 4.-Heats of hydrogenation of n- and iso-Propyl bromides and chlorides, Trans. Faraday Soc., 1965, 61, 2413-2416. [all data]

Diogo, Simoni, et al., 1993
Diogo, H.P.; Simoni, J.A.; Minas da Piedade, M.E.; Dias, A.R.; Martinho Simões, J.A., J. Am. Chem. Soc., 1993, 115, 2764. [all data]

Rogers, Crooks, et al., 1987
Rogers, D.W.; Crooks, E.; Dejroongruang, K., Enthalpies of hydrogenation of the hexenes, J. Chem. Thermodyn., 1987, 19, 1209-1215. [all data]

Doering, Roth, et al., 1989
Doering, W.E.; Roth, W.R.; Bauer, F.; Breuckmann, R.; Ebbrecht, T.; Herbold, M.; Schmidt, R.; Lennartz, H-W.; Lenoir, D.; Boese, R., Rotational barriers of strained olefines, Chem. Ber., 1989, 122, 1263-1266. [all data]

Wiberg, Crocker, et al., 1991
Wiberg, K.B.; Crocker, L.S.; Morgan, K.M., Thermochemical studies of carbonyl compounds. 5. Enthalpies of reduction of carbonyl groups, J. Am. Chem. Soc., 1991, 113, 3447-3450. [all data]

Notes

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