Benzene, 1-bromo-3-methyl-

• Formula: C₇H₇Br
• Molecular weight: 171.034
• IUPAC Standard InChI: InChI=1S/C7H7Br/c1-6-3-2-4-7(8)5-6/h2-5H,1H3 Copy

  
• IUPAC Standard InChIKey: WJIFKOVZNJTSGO-UHFFFAOYSA-N Copy
• CAS Registry Number: 591-17-3
• Chemical structure:
  This structure is also available as a 2d Mol file
• Other names: Toluene, m-bromo-; m-Bromotoluene; m-Methylbromobenzene; m-Tolyl bromide; 1-Bromo-3-methylbenzene; 3-Bromo-1-methylbenzene; 3-Bromotoluene; 3-Methyl-1-bromobenzene; 3-Methylbromobenzene; 5-Bromotoluene
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• Information on this page:
  • Gas phase ion energetics data
  • IR Spectrum
  • References
  • Notes
• Other data available:
  • Phase change data
  • Reaction thermochemistry data
  • Mass spectrum (electron ionization)
  • Gas Chromatography
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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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 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

Ionization energy determinations

Appearance energy determinations

De-protonation reactions

C₇H₆Br^- +  =

By formula: C₇H₆Br^- + H⁺ = C₇H₇Br

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

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.

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]

Johnstone and Mellon, 1973
Johnstone, R.A.W.; Mellon, F.A., Effects of induction and resonance in the calculation of ionization potentials of substituted benzenes by perturbation molecular orbital theory, J. Chem. Soc. Faraday Trans. 2, 1973, 69, 36. [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]

Dunbar, Honovich, et al., 1988
Dunbar, R.C.; Honovich, J.P.; Asamoto, B., Photodissociation thermochemistry as a probe of halotoluene ion potential surfaces, J. Phys. Chem., 1988, 92, 6935. [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]

Wenthold, Wierschke, et al., 1994
Wenthold, P.G.; Wierschke, S.G.; Nash, J.J.; Squires, R.R., Biradical thermochemistry from collision-induced dissociation threshold energy measurements .2. Experimental and theoretical studies of the Mechanism and Thermochemistry of Formation of alph, J. Am. Chem. Soc., 1994, 116, 16, 7378, https://doi.org/10.1021/ja00095a048 . [all data]

Notes

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• Symbols used in this document:
  

  AE	Appearance energy
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions

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