2,4-Dimethylstyrene
- Formula: C10H12
- Molecular weight: 132.2023
- IUPAC Standard InChIKey: OEVVKKAVYQFQNV-UHFFFAOYSA-N
- CAS Registry Number: 2234-20-0
- 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: Benzene, 1-ethenyl-2,4-dimethyl-; Styrene, 2,4-dimethyl-; 1-Vinyl-2,4-dimethylbenzene; 1,3-Dimethyl-4-ethenylbenzene; 1,3-Dimethyl-4-vinylbenzene; 2,4-Dimethyl-1-vinylbenzene; 4-vinyl-m-xylene
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Phase change data
Go To: Top, Gas phase ion energetics data, IR Spectrum, UV/Visible spectrum, Gas Chromatography, 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:
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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 208.83 | K | N/A | Schwartzman and Corson, 1956 | Uncertainty assigned by TRC = 0.4 K; TRC |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference | Comment |
---|---|---|---|
346.7 | 0.013 | Aldrich Chemical Company Inc., 1990 | BS |
352.7 | 0.016 | Weast and Grasselli, 1989 | BS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
12.0 | 322. | A | Stephenson and Malanowski, 1987 | Based on data from 307. to 453. K. See also Stull, 1947.; AC |
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
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.22 | PE | Kobayashi, Yokota, et al., 1973 | Vertical value |
IR Spectrum
Go To: Top, Phase change data, Gas phase ion energetics data, UV/Visible spectrum, Gas Chromatography, References, Notes
Data compiled by: Coblentz Society, Inc.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
UV/Visible 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.
Spectrum
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Additional Data
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Source | Fihtengolts, et al., 1969 |
---|---|
Owner | INEP CP RAS, NIST OSRD Collection (C) 2007 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
Origin | INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS |
Source reference | RAS UV No. 20124 |
Instrument | SF-4 |
Boiling point | 79-80/ 12 mm |
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
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | HP-1 | 100. | 1081. | Zhang, Li, et al., 1992 | N2; Column length: 25. m; Column diameter: 0.20 mm |
Capillary | HP-1 | 100. | 1082. | Zhang, Li, et al., 1992 | N2; Column length: 25. m; Column diameter: 0.20 mm |
Capillary | SE-30 | 70. | 1075.4 | Tóth, 1983 | N2; Column length: 15. m; Column diameter: 0.25 mm |
Capillary | SE-30 | 130. | 1100. | Bredael, 1982 | Column length: 100. m; Column diameter: 0.5 mm |
Capillary | SE-30 | 80. | 1083. | Bredael, 1982 | Column length: 100. m; Column diameter: 0.5 mm |
Capillary | Squalane | 86. | 1080.9 | Macák, Nabivach, et al., 1982 | N2; Column length: 50. m; Column diameter: 0.25 mm |
Capillary | Squalane | 96. | 1084.2 | Macák, Nabivach, et al., 1982 | N2; Column length: 50. m; Column diameter: 0.25 mm |
Capillary | Squalane | 96. | 1084.2 | Nabivach, Bur'yan, et al., 1978 | Column length: 50. m; Column diameter: 0.25 mm |
Capillary | SE-30 | 65. | 1079.8 | Svob and Deur-Siftar, 1974 | He; Column length: 25.5 m; Column diameter: 0.5 mm |
Kovats' RI, polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | PEG-20M | 70. | 1440.5 | Tóth, 1983 | N2; Column length: 30. m; Column diameter: 0.3 mm |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Polymethylsiloxane, (PMS-20000) | 1075. | Cornwell and Cordano, 2003 | Program: not specified |
Normal alkane RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Carbowax 20M | 1440. | Cornwell and Cordano, 2003 | Program: not specified |
References
Go To: Top, Phase change data, Gas phase ion energetics data, IR Spectrum, UV/Visible spectrum, 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]
Kobayashi, Yokota, et al., 1973
Kobayashi, T.; Yokota, K.; Nagakura, S.,
Photoelectron spectra of styrenes,
J. Electron Spectrosc. Relat. Phenom., 1973, 3, 449. [all data]
Fihtengolts, et al., 1969
Fihtengolts, V.S., et al.,
Atlas of UV Absorption Spectra of Substances Used in Synthetic Rubbers Manufacture, 1969, 13. [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]
Macák, Nabivach, et al., 1982
Macák, J.; Nabivach, V.; Buryan, P.; Sindler, S.,
Dependence of retention indices of alkylbenzenes on their molecular structure,
J. Chromatogr., 1982, 234, 2, 285-302, https://doi.org/10.1016/S0021-9673(00)81867-1
. [all data]
Nabivach, Bur'yan, et al., 1978
Nabivach, V.M.; Bur'yan, P.; Matsak, I.,
Retention indices of aromatic hydrocarbons on a squalane capillary column,
Zh. Anal. Khim., 1978, 33, 7, 1108-1113. [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]
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]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, IR Spectrum, UV/Visible spectrum, 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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