Benzene, 1-chloro-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
Δcliquid-896. ± 2.kcal/molCcbSmith, Bjellerup, et al., 1953At 291.7 °K

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
Tboil435.2KN/AWeast and Grasselli, 1989BS
Tboil431.2KN/AOgimachi, Andrews, et al., 1955Uncertainty assigned by TRC = 2. K; TRC
Tboil434.89KN/AStuckey and Saylor, 1940Uncertainty assigned by TRC = 0.2 K; TRC
Quantity Value Units Method Reference Comment
Tfus225.35KN/AMartin, Yalkowsky, et al., 1979Uncertainty assigned by TRC = 0.5 K; TRC
Tfus224.26KN/ABrown and Stock, 1957Uncertainty assigned by TRC = 0.6 K; TRC
Tfus246.9KN/ATimmermans, 1934as reported in Chem. Abstracts; TRC
Tfus225.35KN/AHaase, 1893Uncertainty assigned by TRC = 2. K; TRC

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
10.0388.N/ADykyj, Svoboda, et al., 1999Based on data from 373. to 435. K.; AC
10.4292.AStephenson and Malanowski, 1987Based on data from 277. to 436. K. See also Stull, 1947.; AC
11.0288.N/AStuckey and Saylor, 1940, 2Based on data from 273. to 348. K.; AC

Antoine Equation Parameters

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

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Temperature (K) A B C Reference Comment
277.9 to 435.54.475771807.576-32.105Stull, 1947Coefficents calculated by NIST from author's data.

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:


Reaction 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: John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

C7H6Cl- + Hydrogen cation = Benzene, 1-chloro-3-methyl-

By formula: C7H6Cl- + H+ = C7H7Cl

Quantity Value Units Method Reference Comment
Δr374.0 ± 2.1kcal/molG+TSCaldwell and Bartmessgas phase; value altered from reference due to change in acidity scale
Quantity Value Units Method Reference Comment
Δr366.9 ± 2.0kcal/molIMRECaldwell and Bartmessgas phase; value altered from reference due to change in acidity scale

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:
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
LL - Sharon G. Lias and Joel F. Liebman

Quantity Value Units Method Reference Comment
Proton affinity (review)187.4kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity180.3kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
8.7 ± 0.1EITajima and Tsuchiya, 1972LLK
8.83 ± 0.02PIWatanabe, Nakayama, et al., 1962RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C5H5+15.7 ± 0.2C2H2+ClEITajima and Tsuchiya, 1973LLK
C5H5+15.71 ± 0.15C2H2+ClEITajima and Tsuchiya, 1972LLK
C7H6Cl+12.05 ± 0.07HEISelim, Rabbih, et al., 1994LL
C7H7+11.25 ± 0.06ClEISelim, Rabbih, et al., 1994LL
C7H7+11.3 ± 0.1ClEITajima and Tsuchiya, 1972LLK
C7H7+11.9ClEIYeo and Williams, 1970RDSH
C7H7+11.3 ± 0.1ClEIBrown, 1970RDSH

De-protonation reactions

C7H6Cl- + Hydrogen cation = Benzene, 1-chloro-3-methyl-

By formula: C7H6Cl- + H+ = C7H7Cl

Quantity Value Units Method Reference Comment
Δr374.0 ± 2.1kcal/molG+TSCaldwell and Bartmessgas phase; value altered from reference due to change in acidity scale; B
Quantity Value Units Method Reference Comment
Δr366.9 ± 2.0kcal/molIMRECaldwell and Bartmessgas phase; value altered from reference due to change in acidity scale; B

References

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

Smith, Bjellerup, et al., 1953
Smith, L.; Bjellerup, L.; Krook, S.; Westermark, H., Heats of combustion of organic chloro compounds determined by the "quartz wool" method, Acta Chem. Scand., 1953, 7, 65. [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]

Ogimachi, Andrews, et al., 1955
Ogimachi, N.N.; Andrews, L.J.; Keefer, R.M., The Free Energies and Heats of Formation of Polyalkoxybenzene-Iodine Monochloride Complexes, J. Am. Chem. Soc., 1955, 77, 4202. [all data]

Stuckey and Saylor, 1940
Stuckey, J.M.; Saylor, J.H., Vapor Pressures of Organic Compounds I., J. Am. Chem. Soc., 1940, 62, 2922. [all data]

Martin, Yalkowsky, et al., 1979
Martin, E.L.; Yalkowsky, S.H.; Wells, J.E., J. Pharm. Sci., 1979, 68, 565. [all data]

Brown and Stock, 1957
Brown, H.C.; Stock, L.M., J. Am. Chem. Soc., 1957, 79, 5175. [all data]

Timmermans, 1934
Timmermans, J., Theory of Concentrated Solutions XII., Bull. Soc. Chim. Belg., 1934, 43, 626. [all data]

Haase, 1893
Haase, E., Chem. Ber., 1893, 26, 1053. [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]

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]

Stuckey and Saylor, 1940, 2
Stuckey, James M.; Saylor, John H., The Vapor Pressures of Some Organic Compounds. I. 1, J. Am. Chem. Soc., 1940, 62, 11, 2922-2925, https://doi.org/10.1021/ja01868a011 . [all data]

Caldwell and Bartmess
Caldwell, G.; Bartmess, J.E., , Unpublished results. [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]

Tajima and Tsuchiya, 1972
Tajima, S.; Tsuchiya, T., The effects of the repeller voltage and the shield voltage on appearance potential measurements by electron impact, Shitsuryo Bunseki, 1972, 20, 117. [all data]

Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J., Ionization potentials of some molecules, J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]

Tajima and Tsuchiya, 1973
Tajima, S.; Tsuchiya, T., Energetics consideration of C5H5+ ions produced from various precursors by electron impact, Bull. Chem. Soc. Jpn., 1973, 46, 3291. [all data]

Selim, Rabbih, et al., 1994
Selim, E.T.M.; Rabbih, M.A.; Fahmey, M.A.; Hawash, M.F., Loss of H and Cl from the molecular ions of chlorotoluene isomers using electron impact mass spectrometry, Int. J. Mass Spectrom. Ion Processes, 1994, 134, 119. [all data]

Yeo and Williams, 1970
Yeo, A.N.H.; Williams, D.H., Rearrangement in the molecular ions of halogenotoluenes prior to fragmentation in the mass spectrometer, Chem. Commun., 1970, 886. [all data]

Brown, 1970
Brown, P., Kinetic studies in mass spectrometry-IV. The [M - Cl] reaction in substituted chlorobenzenes and the question of molecular ion isomerization, Org. Mass Spectrom., 1970, 3, 639. [all data]


Notes

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