Thiophene, 3-methyl-

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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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfgas19.74 ± 0.22kcal/molCcrMcCullough, Sunner, et al., 1953Reanalyzed by Cox and Pilcher, 1970, Original value = 19.94 ± 0.23 kcal/mol

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
Δfliquid10.29 ± 0.21kcal/molCcrMcCullough, Sunner, et al., 1953Reanalyzed by Cox and Pilcher, 1970, Original value = 10.49 ± 0.20 kcal/mol
Quantity Value Units Method Reference Comment
Δcliquid-829.45 ± 0.17kcal/molCcrMcCullough, Sunner, et al., 1953Reanalyzed by Cox and Pilcher, 1970, Original value = -829.2 ± 0.0 kcal/mol

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: John E. Bartmess

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

C5H5S- + Hydrogen cation = Thiophene, 3-methyl-

By formula: C5H5S- + H+ = C5H6S

Quantity Value Units Method Reference Comment
Δr380.7 ± 3.1kcal/molG+TSDePuy, Kass, et al., 1988gas phase; Acid: 3-methylthiophene. Between MeOH, EtOH. 1 D exchange implies ring proton as site.
Quantity Value Units Method Reference Comment
Δr373.0 ± 3.0kcal/molIMRBDePuy, Kass, et al., 1988gas phase; Acid: 3-methylthiophene. Between MeOH, EtOH. 1 D exchange implies ring proton as site.

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.

McCullough, Sunner, et al., 1953
McCullough, J.P.; Sunner, S.; Finke, H.L.; Hubbard, W.N.; Gross, M.E.; Pennington, R.E.; Messerly, J.F.; Good, W.D.; Waddington, G., The chemical thermodynamic properties of 3-methylthiophene from 0 to 1000°K, J. Am. Chem. Soc., 1953, 75, 5075-50. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

DePuy, Kass, et al., 1988
DePuy, C.H.; Kass, S.R.; Bean, G.P., Formation and Reactions of Heteroaromatic Anions in the Gas Phase, J. Org. Chem., 1988, 53, 19, 4427, https://doi.org/10.1021/jo00254a001 . [all data]


Notes

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