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Thiophene, 2-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
Deltafgas20.16 ± 0.22kcal/molCcrPennington, Finke, et al., 1956 

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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Deltafliquid10.66 ± 0.22kcal/molCcrPennington, Finke, et al., 1956Reanalyzed by Cox and Pilcher, 1970, Original value = 10.86 ± 0.21 kcal/mol; ALS
Quantity Value Units Method Reference Comment
Deltacliquid-829.82 ± 0.18kcal/molCcrPennington, Finke, et al., 1956Reanalyzed by Cox and Pilcher, 1970, Original value = -829.65 ± 0.18 kcal/mol; ALS
Quantity Value Units Method Reference Comment
liquid52.220cal/mol*KN/APennington, Finke, et al., 1956DH

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
35.810298.15Pennington, Finke, et al., 1956T = 12 to 340 K.; DH

Constant pressure heat capacity of solid

Cp,solid (cal/mol*K) Temperature (K) Reference Comment
23.40199.70Carlson and Westrum, 1968glass phase; T = 110 to 200 K. Value is unsmoothed experimental datum.; DH

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, 2-methyl-

By formula: C5H5S- + H+ = C5H6S

Quantity Value Units Method Reference Comment
Deltar379.8 ± 3.1kcal/molG+TSDePuy, Kass, et al., 1988gas phase; Acid: 2-methylthiophene. Between MeOH, EtOH.
Quantity Value Units Method Reference Comment
Deltar373.0 ± 3.0kcal/molIMRBDePuy, Kass, et al., 1988gas phase; Acid: 2-methylthiophene. Between MeOH, EtOH.

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.

Pennington, Finke, et al., 1956
Pennington, R.E.; Finke, H.L.; Hubbard, W.N.; Messerly, J.F.; Frow, F.R.; Hossenlopp, I.A.; Waddington, G., The chemical thermodynamic properties of 2-methylthiophene, J. Am. Chem. Soc., 1956, 78, 2055-2060. [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]

Carlson and Westrum, 1968
Carlson, H.G.; Westrum, E.F., Jr., Thermal study of the glass-type transformation of 2-methylthiophene, J. Chem. Eng. Data, 1968, 13, 273-274. [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