Thiophene, 3-methyl-

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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
Δfliquid43.05 ± 0.88kJ/molCcrMcCullough, Sunner, et al., 1953Reanalyzed by Cox and Pilcher, 1970, Original value = 43.89 ± 0.84 kJ/mol
Quantity Value Units Method Reference Comment
Δcliquid-3470.4 ± 0.71kJ/molCcrMcCullough, Sunner, et al., 1953Reanalyzed by Cox and Pilcher, 1970, Original value = -3469.4 ± 0.0 kJ/mol

Phase change 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Tboil388.6KN/AWeast and Grasselli, 1989BS
Tboil388.6KN/AMajer and Svoboda, 1985 
Tboil388.6KN/AHaines, Helm, et al., 1956Uncertainty assigned by TRC = 0.3 K; TRC
Quantity Value Units Method Reference Comment
Tfus204.21KN/AHaines, Helm, et al., 1956Uncertainty assigned by TRC = 0.06 K; TRC
Quantity Value Units Method Reference Comment
Ttriple204.19KN/AMcCullough, Sunner, et al., 1953, 2Uncertainty assigned by TRC = 0.02 K; For pure sample by extrapolation of 1/f to 0; TRC
Quantity Value Units Method Reference Comment
Tc610.8KN/AMajer and Svoboda, 1985 
Quantity Value Units Method Reference Comment
Δvap39.46kJ/molN/AMajer and Svoboda, 1985 
Δvap39.5kJ/molN/AReid, 1972AC
Δvap39.5kJ/molN/AMcCullough, Sunner, et al., 1953DRB

Reduced pressure boiling point

Tboil (K) Pressure (bar) Reference Comment
387.20.984Aldrich Chemical Company Inc., 1990BS

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Method Reference Comment
34.24388.6N/AMajer and Svoboda, 1985 
37.3348.N/ASapei, Uusi-Kyyny, et al., 2009Based on data from 333. to 388. K.; AC
36.8357.N/ADykyj, Svoboda, et al., 1999Based on data from 326. to 398. K.; AC
37.5342.A,EBStephenson and Malanowski, 1987Based on data from 327. to 399. K. See also White, Barnard--Smith, et al., 1952.; AC
37.4348.IEon, Pommier, et al., 1971Based on data from 333. to 373. K. See also Boublik, Fried, et al., 1984.; AC
39.5329.VMcCullough, Sunner, et al., 1953ALS

Enthalpy of vaporization

ΔvapH = A exp(-βTr) (1 − Tr)β
    ΔvapH = Enthalpy of vaporization (at saturation pressure) (kJ/mol)
    Tr = reduced temperature (T / Tc)

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Temperature (K) A (kJ/mol) β Tc (K) Reference Comment
329. to 389.55.030.288610.8Majer and Svoboda, 1985 

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
333.4 to 373.54.665291697.518-23.456Eon, Pommier, et al., 1971Coefficents calculated by NIST from author's data.

Enthalpy of fusion

ΔfusH (kJ/mol) Temperature (K) Reference Comment
10.54204.2Lange, 1985AC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Gas phase ion energetics data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), 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:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV) Method Reference Comment
8.84CTSAloisi and Pignataro, 1973LLK
8.72EIAloisi and Pignataro, 1973LLK
8.40PEBaker, Betteridge, et al., 1970RDSH
8.70PEColonna, Distefano, et al., 1979Vertical value; LLK

De-protonation reactions

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

By formula: C5H5S- + H+ = C5H6S

Quantity Value Units Method Reference Comment
Δr1593. ± 13.kJ/molG+TSDePuy, Kass, et al., 1988gas phase; Acid: 3-methylthiophene. Between MeOH, EtOH. 1 D exchange implies ring proton as site.; B
Quantity Value Units Method Reference Comment
Δr1561. ± 13.kJ/molIMRBDePuy, Kass, et al., 1988gas phase; Acid: 3-methylthiophene. Between MeOH, EtOH. 1 D exchange implies ring proton as site.; B

Mass spectrum (electron ionization)

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Mass spectrum
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Additional Data

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Due to licensing restrictions, this spectrum cannot be downloaded.

Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin NIST Mass Spectrometry Data Center, 1990.
NIST MS number 118726

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), 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]

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]

Haines, Helm, et al., 1956
Haines, W.E.; Helm, R.V.; Cook, G.L.; Ball, J.S., Purification and Properties of Organic Sulfur Compounds, J. Phys. Chem., 1956, 60, 549-55. [all data]

McCullough, Sunner, et al., 1953, 2
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, 5075-81. [all data]

Reid, 1972
Reid, Robert C., Handbook on vapor pressure and heats of vaporization of hydrocarbons and related compounds, R. C. Wilhort and B. J. Zwolinski, Texas A Research Foundation. College Station, Texas(1971). 329 pages.$10.00, AIChE J., 1972, 18, 6, 1278-1278, https://doi.org/10.1002/aic.690180637 . [all data]

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Sapei, Uusi-Kyyny, et al., 2009
Sapei, Erlin; Uusi-Kyyny, Petri; Keskinen, Kari I.; Aittamaa, Juhani, Phase equilibria on four binary systems containing 3-methylthiophene, Fluid Phase Equilibria, 2009, 279, 2, 81-86, https://doi.org/10.1016/j.fluid.2009.02.010 . [all data]

Dykyj, Svoboda, et al., 1999
Dykyj, J.; Svoboda, J.; Wilhoit, R.C.; Frenkel, M.L.; Hall, K.R., Vapor Pressure of Chemicals: Part A. Vapor Pressure and Antoine Constants for Hydrocarbons and Sulfur, Selenium, Tellurium and Hydrogen Containing Organic Compounds, Springer, Berlin, 1999, 373. [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

White, Barnard--Smith, et al., 1952
White, P.T.; Barnard--Smith, D.G.; Fidler, F.A., Vapor Pressure--Temperature Relationships of Sulfur Compounds Related to Petroleum, Ind. Eng. Chem., 1952, 44, 6, 1430-1438, https://doi.org/10.1021/ie50510a064 . [all data]

Eon, Pommier, et al., 1971
Eon, C.; Pommier, C.; Guiochon, G., Vapor pressures and second virial coefficients of some five-membered heterocyclic derivatives, J. Chem. Eng. Data, 1971, 16, 4, 408-410, https://doi.org/10.1021/je60051a008 . [all data]

Boublik, Fried, et al., 1984
Boublik, T.; Fried, V.; Hala, E., The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. [all data]

Lange, 1985
Lange, N.A., Lange's Handbook of Chemistry, 13th Edition, J.A. Dean, ed(s)., McGraw-Hill, New York, NY, 1985, 1792. [all data]

Aloisi and Pignataro, 1973
Aloisi, G.G.; Pignataro, S., Molecular complexes of substituted thiophens with σ and π acceptors, J. Chem. Soc. Faraday Trans. 1, 1973, 69, 534. [all data]

Baker, Betteridge, et al., 1970
Baker, A.D.; Betteridge, D.; Kemp, N.R.; Kirby, R.E., Application of photoelectron spectrometry to pesticide analysis. Photoelectron spectra of fivemembered heterocycles and related molecules, Anal. Chem., 1970, 42, 1064. [all data]

Colonna, Distefano, et al., 1979
Colonna, F.P.; Distefano, G.; Guerra, M.; Jones, D.; Modelli, A., Furyl- and thienyl-mercury derivatives studied by means of ultraviolet photoelectron spectroscopy. Evidence for the participation in bonding of the vacant 6p π orbitals of mercury in bis-2-furyl-bis-2-thienylmercury, J. Chem. Soc. Dalton Trans., 1979, 2037. [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, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), References