Benzene, chloro-

• Formula: C₆H₅Cl
• Molecular weight: 112.557
• IUPAC Standard InChI: InChI=1S/C6H5Cl/c7-6-4-2-1-3-5-6/h1-5H Copy

  
• IUPAC Standard InChIKey: MVPPADPHJFYWMZ-UHFFFAOYSA-N Copy
• CAS Registry Number: 108-90-7
• 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: Chlorobenzene; Monochlorobenzene; MCB; Phenyl Chloride; Benzene chloride; Chlorbenzene; Chlorobenzol; Monochlorbenzene; Chloorbenzeen; Chlorbenzol; Chlorobenzen; Chlorobenzene, mono-; Clorobenzene; Monochloorbenzeen; Monochlorbenzol; Monoclorobenzene; NCI-C54886; Chlorobenzenu; UN 1134; Abluton T30; CP 27; IP Carrier T 40; NSC 8433; Tetrosin SP
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Henry's Law data
  • Gas phase ion energetics data
  • Ion clustering data
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • Reaction thermochemistry data
  • IR Spectrum
  • UV/Visible spectrum
  • Gas Chromatography
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, Mass spectrum (electron ionization), References, Notes

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

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 liquid

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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Enthalpy of vaporization

Antoine Equation Parameters

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

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Enthalpy of fusion

Entropy of fusion

Henry's Law 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: Rolf Sander

Henry's Law constant (water solution)

k_H(T) = k°_H exp(d(ln(k_H))/d(1/T) ((1/T) - 1/(298.15 K)))
k°_H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(k_H))/d(1/T) = Temperature dependence constant (K)

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
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
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

View reactions leading to C₆H₅Cl⁺ (ion structure unspecified)

Ionization energy determinations

Appearance energy determinations

De-protonation reactions

C₆H₄Cl^- +  =

By formula: C₆H₄Cl^- + H⁺ = C₆H₅Cl

C₆H₄Cl^- +  =

By formula: C₆H₄Cl^- + H⁺ = C₆H₅Cl

C₆H₄Cl^- +  =

By formula: C₆H₄Cl^- + H⁺ = C₆H₅Cl

Ion clustering 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:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

 +  = ( • )

By formula: Br^- + C₆H₅Cl = (Br^- • C₆H₅Cl)

Free energy of reaction

C₆H₇N⁺ +  = (C₆H₇N⁺ • )

By formula: C₆H₇N⁺ + C₆H₅Cl = (C₆H₇N⁺ • C₆H₅Cl)

Bond type: Charge transfer bond (positive ion)

Free energy of reaction

C₉H₁₂⁺ +  = (C₉H₁₂⁺ • )

By formula: C₉H₁₂⁺ + C₆H₅Cl = (C₉H₁₂⁺ • C₆H₅Cl)

Bond type: Charge transfer bond (positive ion)

Free energy of reaction

 +  = ( • )

By formula: Cl^- + C₆H₅Cl = (Cl^- • C₆H₅Cl)

Free energy of reaction

 +  = ( • )

By formula: NO^- + C₆H₅Cl = (NO^- • C₆H₅Cl)

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

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, Mass spectrum (electron ionization), Notes

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

Platonov and Simulin, 1985
Platonov, V.A.; Simulin, Yu.N., Determination of the standard enthalpies of formation of polychlorobenzenes. III. The standard enthalpies of formation of mono-1,2,4- and 1,3,5-tri-, and 1,2,3,4- and 1,2,3,5-tetrachlorobenzenes, Russ. J. Phys. Chem. (Engl. Transl.), 1985, 59, 179-181. [all data]

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Kolesov, V.P.; Tomareva, E.M.; Skuratov, S.M.; Alekhin, S.P., Calorimeter having a rotating bomb for determining heats of combustion of chlorinated organic compounds, Russ. J. Phys. Chem. (Engl. Transl.), 1967, 41, 817-820. [all data]

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Hubbard, W.N.; Knowlton, J.W.; Huffman, H.M., Combustion calorimetry of organic chlorine compounds. Heats of combustion of chlorobenzene, the dichlorobenzenes and o- and p-chloroethylbenzene, J. Phys. Chem., 1954, 58, 396. [all data]

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Shehatta, I., Heat capacity at constant pressure of some halogen compounds, Thermochim. Acta, 1993, 213, 1-10. [all data]

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Liu, Kewen; Dickhut, Rebecca M., Saturation vapor pressures and thermodynamic properties of benzene and selected chlorinated benzenes at environmental temperatures, Chemosphere, 1994, 29, 3, 581-589, https://doi.org/10.1016/0045-6535(94)90445-6 . [all data]

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Brown, I., Liquid-Vapour Equilibria. III. The Systems Benzene-n-Heptane, n-Hexane-Chlorobenzene, and cycloHexane-Nitrobenzene, Aust. J. Sci. Res. Ser. A:, 1952, 5, 530-540. [all data]

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Leighton, D.T.; Calo, J.M., Distribution Coefficients of Chlorinated Hydrocarbons in Dilute Air-Water Systems for Groundwater Contamination Applications, J. Chem. Eng. Data, 1981, 26, 382-385. [all data]

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Mackay, D.; Shiu, W.-Y.; Sutherland, R.P., Determination of Air-Water Henry's Law Constants for Hydrophobic Pollutants, Environ. Sci. Technol., 1979, 13, 333-337. [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]

Fujisawa, Ohno, et al., 1986
Fujisawa, S.; Ohno, K.; Masuda, S.; Harada, Y., Penning ionization electron spectroscopy of monohalogenobenzenes: C₆H₅F, C₆H₅Cl, C₆H₅Br, and C₆H₅I, J. Am. Chem. Soc., 1986, 108, 6505. [all data]

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Klasinc, L.; Kovac, B.; Gusten, H., Photoelectron spectra of acenes. Electronic structure and substituent effects, Pure Appl. Chem., 1983, 55, 289. [all data]

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Ruscic, B.; Klasinc, L.; Wolf, A.; Knop, J.V., Photoelectron spectra of and Ab initio calculations on chlorobenzenes. 1. Chlorobenzene and dichlorobenzenes, J. Phys. Chem., 1981, 85, 1486. [all data]

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Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S., Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]

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Mohraz, M.; Maier, J.P.; Heilbronner, E., He(I α) and He(Iα) photoelectron spectra of fluorinated chloro- and bromobenzenes, J. Electron Spectrosc. Relat. Phenom., 1980, 19, 429. [all data]

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Maier, J.P.; Marthaler, O., Emission spectra of the radical cations of 1,3-dichlorobenzene, 1,4-dichlorobenzene and 1,3,5-trichlorobenzene in the gas phase, Chem. Phys., 1978, 32, 419. [all data]

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Lias, S.G.; Ausloos, P.J., eIonization energies of organic compounds by equilibrium measurements, J. Am. Chem. Soc., 1978, 100, 6027. [all data]

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Behan, J.M.; Johnstone, R.A.W.; Bentley, T.W., An evaluation of empirical methods for calculating the ionization potentials of substituted benzenes, Org. Mass Spectrom., 1976, 11, 207. [all data]

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Baldwin, M.A.; Loudon, A.G.; Maccoll, A.; Webb, K.S., The nature and fragmentation pathways of the molecular ions of some arylureas, arylthioureas, acetanilides, thioacetanilides and related compounds, Org. Mass Spectrom., 1976, 11, 1181. [all data]

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Baer, T.; Tsai, B.P.; Smith, D.; Murray, P.T., Absolute unimolecular decay rates of energy selected metastable halobenzene ions, J. Chem. Phys., 1976, 64, 2460. [all data]

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Gilbert, J.R.; Leach, W.P.; Miller, J.R., Ionisation appearance potential measurements in arene chromium tricarbonyls, J. Organomet. Chem., 1973, 49, 219. [all data]

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Cooks, R.G.; Bertrand, M.; Beynon, J.H.; Rennekamp, M.E.; Setser, D.W., Energy partitioning data as an ion structure probe. Substituted anisoles, J. Am. Chem. Soc., 1973, 95, 1732. [all data]

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Momigny, J.; Goffart, C.; D'Or, L., Photoionization studies by total ionization measurements. I. Benzene and its monohalogeno derivatives, Intern. J. Mass Spectrom. Ion Phys., 1968, 1, 53. [all data]

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Quemerais, A.; Morlais, M.; Robin, S., Spectres d'absorption du benzene et du monochlorobenzene dans l'ultraviolet de 1300 a 2300 A, Compt. Rend., 1967, 265, 649. [all data]

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Bralsford, R.; Harris, P.V.; Price, W.C., The effect of fluorine on the electronic spectra and ionization potentials of molecules, Proc. Roy. Soc. (London), 1960, A258, 459. [all data]

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Potts, A.W.; Lyus, M.L.; Lee, E.P.F.; Fattahallah, G.H., High resolution ultraviolet photoelectron spectra of C₆H₅X and p-C₆H₄X₂ where X = Cl, Br or I, J. Chem. Soc. Faraday Trans. 2, 1980, 76, 556. [all data]

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Momigny, J., Determination et discussion des potentials d'apparition d'ions fragmentaires dans le benzene et ses derives monohalogenes, Bull. Soc. Roy. Sci. Liege, 1959, 28, 251. [all data]

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Ripoche, X.; Dimicoli, I.; Botter, R., Unimolecular decay rates for laser induced Cl loss from energy selected chlorobenzene cations [E_o(C₆H₅Cl⁺ Ü C₆H₅⁺ + Cl)=2.74±0.02 eV; cited data derived using recommended IP for chlorobenzene.], Int. J. Mass Spectrom. Ion Processes, 1991, 107, 165. [all data]

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Burgers, P.C.; Holmes, J.L., Fragmentation rate constants and appearance energies for reactions having a large kinetic shift and the energy partitioning in their metastable decomposition, Int. J. Mass Spectrom. Ion Processes, 1984, 58, 15. [all data]

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Rosenstock, H.M.; Stockbauer, R.; Parr, A.C., Kinetic shift in chlorobenzene ion fragmentation and the heat of formation of the phenyl ion, J. Chem. Phys., 1979, 71, 3708. [all data]

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Paul, G.J.C.; Kebarle, P., Stabilities of Complexes of Br- with Substituted Benzenes (SB) Based on Determinations of the Gas-Phase Equilibria Br- + SB = (BrSB)-, J. Am. Chem. Soc., 1991, 113, 4, 1148, https://doi.org/10.1021/ja00004a014 . [all data]

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Sieck, L.W., Thermochemistry of Solvation of NO₂^- and C₆H₅NO₂^- by Polar Molecules in the Vapor Phase. Comparison with Cl^- and Variation with Ligand Structure., J. Phys. Chem., 1985, 89, 25, 5552, https://doi.org/10.1021/j100271a049 . [all data]

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French, M.A.; Ikuta, S.; Kebarle, P., Hydrogen bonding of O-H and C-H hydrogen donors to Cl^-. Results from mass spectrometric measurement of the ion-molecule equilibria RH + Cl^- = RHCl^-, Can. J. Chem., 1982, 60, 1907. [all data]

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Reents, W.D.; Freiser, B.S., Gas-Phase Binding Energies and Spectroscopic Properties of NO+ Charge-Transfer Complexes, J. Am. Chem. Soc., 1981, 103, 2791. [all data]

Farid and McMahon, 1978
Farid, R.; McMahon, T.B., Gas-Phase Ion-Molecule Reactions of Alkyl Nitrites by Ion Cyclotron Resonance Spectroscopy, Int. J. Mass Spectrom. Ion Phys., 1978, 27, 2, 163, https://doi.org/10.1016/0020-7381(78)80037-0 . [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, Mass spectrum (electron ionization), References

• Symbols used in this document:
  

  AE	Appearance energy
  Cp,liquid	Constant pressure heat capacity of liquid
  Cp,solid	Constant pressure heat capacity of solid
  IE (evaluated)	Recommended ionization energy
  Pc	Critical pressure
  S°liquid	Entropy of liquid at standard conditions
  T	Temperature
  Tboil	Boiling point
  Tc	Critical temperature
  Tfus	Fusion (melting) point
  Ttriple	Triple point temperature
  d(ln(kH))/d(1/T)	Temperature dependence parameter for Henry's Law constant
  k°H	Henry's Law constant at 298.15K
  ΔcH°liquid	Enthalpy of combustion of liquid at standard conditions
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔfH°liquid	Enthalpy of formation of liquid at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔrS°	Entropy of reaction at standard conditions
  ΔvapH	Enthalpy of vaporization
  ΔvapH°	Enthalpy of vaporization at standard conditions
  ρc	Critical density

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