2H-Pyran, 3,4-dihydro-

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Gas phase thermochemistry data

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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
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
Δfgas-112.81 ± 0.90kJ/molCcrSteele, Chirico, et al., 1989ALS

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
34.7850.Dorofeeva O.V., 1992p=1 bar.; GT
42.08100.
51.39150.
62.90200.
84.11273.15
92.2 ± 3.5298.15
92.76300.
125.37400.
154.64500.
179.15600.
199.47700.
216.44800.
230.73900.
242.861000.
253.191100.
262.021200.
269.611300.
276.141400.
281.791500.

Condensed phase thermochemistry data

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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

Quantity Value Units Method Reference Comment
Δfliquid-147.73 ± 0.86kJ/molCcrSteele, Chirico, et al., 1989 
Quantity Value Units Method Reference Comment
Δcliquid-2963.14 ± 0.80kJ/molCcrSteele, Chirico, et al., 1989Corresponding Δfliquid = -147.73 kJ/mol (simple calculation by NIST; no Washburn corrections)

Reaction thermochemistry data

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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.

Individual Reactions

2H-Pyran, 3,4-dihydro- + Hydrogen = Tetrahydropyran

By formula: C5H8O + H2 = C5H10O

Quantity Value Units Method Reference Comment
Δr-103.3 ± 1.0kJ/molChydAllinger, Glaser, et al., 1981liquid phase; solvent: Hexane

References

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

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

Steele, Chirico, et al., 1989
Steele, W.V.; Chirico, R.D.; Nguyen, A.; Hossenlopp, I.A.; Smith, N.K., Determination of some pure compound ideal-gas enthalpies of formation, AIChE Symp. Ser., 1989, 85, 140-162. [all data]

Dorofeeva O.V., 1992
Dorofeeva O.V., Ideal gas thermodynamic properties of oxygen heterocyclic compounds. Part 2. Six-membered, seven-membered and eight-membered rings, Thermochim. Acta, 1992, 200, 121-150. [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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