trans-β-Methylstyrene

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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

Quantity Value Units Method Reference Comment
Tboil450. ± 3.KAVGN/AAverage of 7 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus246.65KN/APark and Wright, 1954Uncertainty assigned by TRC = 1. K; TRC
Tfus243.23KN/AAnonymous, 1953Uncertainty assigned by TRC = 0.2 K; TRC
Tfus243.82KN/AAnonymous, 1953Uncertainty assigned by TRC = 0.15 K; TRC
Tfus243.08KN/AAnonymous, 1952Uncertainty assigned by TRC = 0.5 K; TRC
Tfus242.15KN/ALespieau, 1930Uncertainty assigned by TRC = 4. K; cis-trans isomer not identified, but m.p. corr. approx. to cis-; TRC

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
11.1306.AStephenson and Malanowski, 1987Based on data from 291. to 452. K. See also Stull, 1947.; AC

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

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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:
HL - Edward P. Hunter and Sharon G. Lias

Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

View reactions leading to C9H10+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
Proton affinity (review)199.4kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity192.5kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
8.1PEKobayashi, Arai, et al., 1981LLK
8.20 ± 0.02PEMaier and Turner, 1973LLK
7.84 ± 0.04EIBenito, Seidl, et al., 1973LLK
8.34PEKobayashi, Arai, et al., 1981Vertical value; LLK
8.32PESalisbury, 1974Vertical value; LLK

References

Go To: Top, 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.

Park and Wright, 1954
Park, W.R.R.; Wright, G.F., J. Org. Chem., 1954, 19, 1435. [all data]

Anonymous, 1953
Anonymous, R., , Physical Properties of Chemical Substances, Dow Chemical Company, 1953. [all data]

Anonymous, 1952
Anonymous, R., , Physical Properties of Chemical Substances, Dow Chemical Co., 1952. [all data]

Lespieau, 1930
Lespieau, R., Preparation of the β Dibromides of Trimethylenic Hydrocarbons, Bull. Soc. Chim. Fr., 1930, 47, 847. [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]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Kobayashi, Arai, et al., 1981
Kobayashi, T.; Arai, T.; Sakuragi, H.; Tokumaru, K.; Utsunomiya, C., A new nethod for conformational analysis by photoelectron spectroscopy with application to alkyl-substituted styrenes, Bull. Chem. Soc. Jpn., 1981, 54, 1658. [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]

Benito, Seidl, et al., 1973
Benito, I.; Seidl, H.; Bock, H., Efectos electronicos y estericos de sustituyentes alquilicos y silicicos sobre el sistema electronico π del estireno, Rev. Fac. Cienc. Univ. Oviedo, 1973, 14, 95. [all data]

Salisbury, 1974
Salisbury, K., Quenching of the fluorescence of styrenes by ground state oxygen, J. Photochem., 1974, 2, 401. [all data]


Notes

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