Benzo[b]thiophene

• Formula: C₈H₆S
• Molecular weight: 134.198
• IUPAC Standard InChI: InChI=1S/C8H6S/c1-2-4-8-7(3-1)5-6-9-8/h1-6H Copy

  
• IUPAC Standard InChIKey: FCEHBMOGCRZNNI-UHFFFAOYSA-N Copy
• CAS Registry Number: 95-15-8
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: Thianaphthene; Benzothiofuran; Benzothiophen; Thianaphtene; Thianaphthen; Thionaphthene; 1-Benzothiophene; 1-Thiaindene; 2,3-Benzothiophene; Benzothiophene; NSC 47196
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• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, 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
DRB - Donald R. Burgess, Jr.

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

Constant pressure heat capacity of solid

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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing

Reduced pressure boiling point

Enthalpy of vaporization

Enthalpy of fusion

Entropy of fusion

Enthalpy of phase transition

Entropy of phase transition

Gas phase ion energetics 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 evaluated as indicated in comments:
L - Sharon G. Lias

Data compiled as indicated in comments:
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

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Notes

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

Sabbah, 1979
Sabbah, R., Thermodynamique de substances soufrees. I. Etude thermochimique du benzo-2,3 thiophene et du dibenzothiophene, Bull. Soc. Chim. France, 1979, 9, 434-437. [all data]

Good, 1972
Good, W.D., Enthalpies of combustion of 18 organic sulfur compounds related to petroleum, J. Chem. Eng. Data, 1972, 17, 158-162. [all data]

Finke, Gross, et al., 1954
Finke, H.L.; Gross, M.E.; Messerly, J.F.; Waddington, G., Benzothiophene: heat capacity, heat of transition, heat of fusion and entropy. An order-disorder transition, J. Am. Chem. Soc., 1954, 76, 854-857. [all data]

Chirico, Knipmeyer, et al., 1991
Chirico, R.D.; Knipmeyer, S.E.; Nguyen, A.; Steele, W.V., The thermodynamic properties of benzo[b]thiophene, J. Chem. Thermodyn., 1991, 23, 759-779. [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]

Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M., Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [all data]

Cooper, Crowne, et al., 1967
Cooper, A.R.; Crowne, C.W.P.; Farrell, P.G., Gas-Liquid Chromatographic Studies of Electron-Donor-Acceptor Systems, Trans. Faraday Soc., 1967, 63, 447. [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]

Chirico, Knipmeyer, et al., 1991, 2
Chirico, R.D.; Knipmeyer, S.E.; Nguyen, A.; Steele, W.V., The thermodynamic properties of benzo[b]thiophene, J. Chem. Thermodyn., 1991, 23, 759-79. [all data]

Finke, Gross, et al., 1954, 2
Finke, H.L.; Gross, M.E.; Messerly, J.F.; Waddington, G., Benzothiophene: heat capacity, heat of transition, heat of fusion and entropy. an order-disorder transition, J. Am. Chem. Soc., 1954, 76, 854. [all data]

Sabbah, 1979, 2
Sabbah, R., Thermodynamics of sulfur compounds.  I.  Thermochemical study of 2,3-benzothiophene and dibenzothiophene, Bull. Soc. Chim. Fr., 1979, 9-10, 434. [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]

Edwards and Prausnitz, 1981
Edwards, D.R.; Prausnitz, J.M., Vapor pressures of some sulfur-containing, coal-related compounds, J. Chem. Eng. Data, 1981, 26, 2, 121-124, https://doi.org/10.1021/je00024a005 . [all data]

Wieczorek and Kobayashi, 1981
Wieczorek, Stefan A.; Kobayashi, Riki, Vapor-pressure measurements of 1-methylnaphthalene, 2-methylnaphthalene, and 9,10-dihydrophenanthrene at elevated temperatures, J. Chem. Eng. Data, 1981, 26, 1, 8-11, https://doi.org/10.1021/je00023a005 . [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Gusten, Klasinc, et al., 1976
Gusten, H.; Klasinc, L.; Ruscic, B., Photoelectron spectroscopy of J. Heterocycl. Chem.. Indene analogs, Z. Naturforsch. A:, 1976, 31, 1051. [all data]

Thorstad and Undheim, 1974
Thorstad, O.; Undheim, K., Mass spectrometry of onium compounds. XXIV. Ionisation potential in structure analysis of pyridodiazo-oxides, Chem. Scr., 1974, 6, 222. [all data]

Clark, Gleiter, et al., 1973
Clark, P.A.; Gleiter, R.; Heilbronner, E., Photoelectron spectra of planar sulfur J. Heterocycl. Chem., Tetrahedron, 1973, 29, 3085. [all data]

Eland, 1969
Eland, J.H.D., Photoelectron spectra of conjugated hydrocarbons and heteromolecules, Intern. J. Mass Spectrom. Ion Phys., 1969, 2, 471. [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, References

• Symbols used in this document:
  

  Cp,solid	Constant pressure heat capacity of solid
  IE (evaluated)	Recommended ionization energy
  S°solid,1 bar	Entropy of solid at standard conditions (1 bar)
  Tboil	Boiling point
  Tfus	Fusion (melting) point
  Ttriple	Triple point temperature
  ΔHtrs	Enthalpy of phase transition
  ΔStrs	Entropy of phase transition
  ΔcH°solid	Enthalpy of combustion of solid at standard conditions
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔfH°solid	Enthalpy of formation of solid at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔsubH°	Enthalpy of sublimation at standard conditions
  ΔvapH	Enthalpy of vaporization

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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