Benzene, 2-ethenyl-1,4-dimethyl-

• Formula: C₁₀H₁₂
• Molecular weight: 132.2023
• IUPAC Standard InChI: InChI=1S/C10H12/c1-4-10-7-8(2)5-6-9(10)3/h4-7H,1H2,2-3H3 Copy

  
• IUPAC Standard InChIKey: DBWWINQJTZYDFK-UHFFFAOYSA-N Copy
• CAS Registry Number: 2039-89-6
• 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: Styrene, 2,5-dimethyl-; 1,4-Dimethyl-2-vinylbenzene; 2,5-Dimethylstyrene; 1,4-Dimethyl-2-ethenylbenzene
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• Information on this page:
  • Phase change data
  • Gas phase ion energetics data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
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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

Reduced pressure boiling point

Enthalpy of vaporization

Antoine Equation Parameters

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

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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 compiled by: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

View reactions leading to C₁₀H₁₂⁺ (ion structure unspecified)

Ionization energy determinations

IR Spectrum

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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

Gas Phase Spectrum

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Additional Data

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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Additional Data

Gas Chromatography

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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

Kovats' RI, non-polar column, isothermal

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Kovats' RI, polar column, isothermal

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Van Den Dool and Kratz RI, non-polar column, temperature ramp

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Normal alkane RI, non-polar column, temperature ramp

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Normal alkane RI, non-polar column, custom temperature program

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Normal alkane RI, polar column, temperature ramp

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Normal alkane RI, polar column, custom temperature program

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Lee's RI, non-polar column, custom temperature program

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References

Go To: Top, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, Notes

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

Schwartzman and Corson, 1956
Schwartzman, L.H.; Corson, B.B., Steric Hinderance. II. The Rates of Dehalogenation of Methyl- and Dimethylstyrene Dibromides, J. Am. Chem. Soc., 1956, 78, 322. [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]

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]

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]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]

Maier and Turner, 1973
Maier, J.P.; Turner, D.W., Steric inhibition of resonance studied by molecular photoelectron spectroscopy. Part 2. Phenylethylenes, J. Chem. Soc. Faraday Trans. 2, 1973, 69, 196. [all data]

Zhang, Li, et al., 1992
Zhang, M.J.; Li, S.D.; Chen, B.J., Compositional studies of high-temperature coal tar by GC/FTIR analysis of light oil fractions, Chromatographia, 1992, 33, 3/4, 138-146, https://doi.org/10.1007/BF02275894 . [all data]

Tóth, 1983
Tóth, T., Use of capillary gas chromatography in collecting retention and chemical information for the analysis of complex petrochemical mixtures, J. Chromatogr., 1983, 279, 157-165, https://doi.org/10.1016/S0021-9673(01)93614-3 . [all data]

Bredael, 1982
Bredael, P., Retention indices of hydrocarbons on SE-30, J. Hi. Res. Chromatogr. Chromatogr. Comm., 1982, 5, 6, 325-328, https://doi.org/10.1002/jhrc.1240050610 . [all data]

Svob and Deur-Siftar, 1974
Svob, V.; Deur-Siftar, D., Kovats Retention Indices in the Identification of Alkylbenzene Degradation Products, J. Chromatogr., 1974, 91, 677-689, https://doi.org/10.1016/S0021-9673(01)97947-6 . [all data]

Antunes, Sevinate-Pinto, et al., 2004
Antunes, T.; Sevinate-Pinto, I.; Barroso, J.G.; Cavaleiro, C.; Salgueiro, L.R., Micromorphology of trichomes and composition of essential oil of Teucrium capitatum, Flavour Fragr. J., 2004, 19, 4, 336-340, https://doi.org/10.1002/ffj.1310 . [all data]

Cavaleiro, Salgueiro, et al., 2003
Cavaleiro, C.; Salgueiro, L.R.; da Cunha, A.P.; Figueiredo, A.C.; Barroso, J.G.; Bighelli, A.; Casanova, J., Composition and variability of the essential oils of the leaves and berries from Juniperus navicularis, Biochem. Syst. Ecol., 2003, 31, 2, 193-201, https://doi.org/10.1016/S0305-1978(02)00080-7 . [all data]

Bertoli, Lepnardi, et al., 2011
Bertoli, A.; Lepnardi, M.; Krzyzanowska, J.; Oleszek, W.; Pistelli, L., Mentha longifolia in vitro cultures as safe source of flavouring ingradients, Acta Biochem. Polonica, 2011, 58, 4, 581-587. [all data]

Chalchat, Figueredo, et al., 2010
Chalchat, J.-C.; Figueredo, G.; Ozcan, M.M.; Unver, A., Effect of hydrodistillation and microwave distillation extraction methods on chemical composition of essential oil of pickling herb and myrtle plants, South Western J. of Agriculture, 2010, 1, 2, 133-141. [all data]

Pala-Paul, Brophy, et al., 2007
Pala-Paul, J.; Brophy, J.J.; Perez-Alonso, M.J.; Usano, J.; Soria, S.C., Essential oil composition of the different parts of Eryngium corniculatum Lam. (Apiaceae) from Spain, J. Chromatogr. A, 2007, 1175, 2, 289-293, https://doi.org/10.1016/j.chroma.2007.10.061 . [all data]

Abdelwahed, Hayder, et al., 2006
Abdelwahed, A.; Hayder, N.; Kilani, S.; Mahmoud, A.; Chibani, J.; Hammami, M.; Chekir-Ghedira, L.; Ghedira, K., Chemical composition and antimicrobial activity of essential oils from Tunisian Pituranthos tortuosus (Coss.) Maire, Flavour Fragr. J., 2006, 21, 1, 129-133, https://doi.org/10.1002/ffj.1542 . [all data]

Mojab, Rustaiyan, et al., 2002
Mojab, F.; Rustaiyan, A.; Jasbi, A.R., Essential oils of Heracleum persicum Desf. ex Fischer leaves, 2002, retrieved from http://www1.tums.ac.ir/daru/DaruVolum10-No1-2002/Mojab.htm. [all data]

Albano, Lima, et al., 2012
Albano, S.M.; Lima, A.S.; Miguel, M.G.; Pedro, L.G.; Barroso, J.G.; Figueiredo, A.C., Antioxidant, anti-5-lipoxygenase and antiacetylcholinesterase activities of essential oils and decoction water of some aromatic plants, Rec. Nat. Prod., 2012, 6, 1, 35-48. [all data]

Veres, Csupor-Loffler, et al., 2012
Veres, K.; Csupor-Loffler, B.; Lazar, A.; Holmann, J., Antifungal activity and composition of essential oils of Conyza canadensis herbs and roots, The Sci. World. J., 2012, 2012, 1-5, https://doi.org/10.1100/2012/489646 . [all data]

Mendes, Trindade, et al., 2009
Mendes, M.D.; Trindade, H.; Figueiredo, A.C.; Pedro, L.G.; Barroso, J.G., Chaerophyllum azoricun Trel. grown in the Azores archipelago, Portugal: evaluation of the genetic diversity using molecular markers and comparison with volatile oils profiles, Flavour Fragr. J., 2009, 24, 5, 259-265, https://doi.org/10.1002/ffj.1939 . [all data]

Mendes, Trindade, et al., 2009, 2
Mendes, M.D.; Trindade, H.; Figueiredo, A.C.; Barroso, J.G.; Fontinha, S.S.; Pedro, L.G., Volatile and molecular characterization of two Portuguese endemic species: Angelica lignescens and Melanoselinium decipiens, Biochen. Systematics Ecol., 2009, 37, 2, 98-105, https://doi.org/10.1016/j.bse.2008.12.006 . [all data]

Figueiredo, Sim-Sim, et al., 2005
Figueiredo, A.C.; Sim-Sim, M.; Costa, M.M.; Barroso, J.G.; Pedro, L.G.; Esquível, M.G.; Gutierres, F.; Lobo, C.; Fontinha, S., Comparison of the essential oil composition of four Plagiochila species: P. bifaria, P. maderensis, P. retrorsa and P. stricta, Flavour Fragr. J., 2005, 20, 6, 703-709, https://doi.org/10.1002/ffj.1627 . [all data]

Cornwell and Cordano, 2003
Cornwell, E.; Cordano, G., Nueva proposicion para predecir datos de retencion obtenidos mediante cromatografia de gases de hidrocarburos derivados de las naftas, Revista de la Sociedad Quimica de Mexico, 2003, 47, 1, 38-43. [all data]

Santos, Figueiredo, et al., 1999
Santos, P.A.; Figueiredo, A.C.; Barroso, J.G.; Pedro, L.G.; Scheffer, J.J.C., Composition of the essential oil of Hypericum foliosum Aiton from five Azorean islands, Flavour Fragr. J., 1999, 14, 5, 283-286, https://doi.org/10.1002/(SICI)1099-1026(199909/10)14:5<283::AID-FFJ826>3.0.CO;2-2 . [all data]

Waggott and Davies, 1984
Waggott, A.; Davies, I.W., Identification of organic pollutants using linear temperature programmed retention indices (LTPRIs) - Part II, 1984, retrieved from http://dwi.defra.gov.uk/research/completed-research/reports/dwi0383.pdf. [all data]

Baser, Demirci, et al., 2003
Baser, K.H.C.; Demirci, B.; Dekebo, A.; Dagne, E., Essential oils of some Boswellia spp., myrrh and opopanax, Flavour Fragr. J., 2003, 18, 2, 153-156, https://doi.org/10.1002/ffj.1166 . [all data]

Fuentes, Font, et al., 2007
Fuentes, M.J.; Font, R.; Gomez-Rico, M.F.; Martin-Gullon, I., Pyrolysis and combustion of waste lubricant oil from diesel cars: Decomposition and pollutants, J. Anal. Appl. Pyrolysis, 2007, 79, 1-2, 215-226, https://doi.org/10.1016/j.jaap.2006.12.004 . [all data]

Notes

Go To: Top, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References

• Symbols used in this document:
  

  Tboil	Boiling point
  Tfus	Fusion (melting) point
  ΔvapH	Enthalpy of vaporization

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